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Two specimens of Coptodon guineensis (Günther, 1862) were unexpectedly found in the Canal de Nador, Moulay Bousselham lagoon, almost 1000 km north of the Aabar River the northernmost river previously recorded. To confirm this identification nineteen measurements were recorded from each specimen and compared with other specimens of C. guineensis from Morocco and Mauritania. The COI gene was partially sequenced and compared with formerly published sequences of Coptodon species of the region. Both morphology and DNA revealed no differences with specimens from known populations of C. guineensis in Morocco.

Protoancylodiscoides essetchii n. sp. (Fig. 3) urn:lsid:zoobank.org:act: A9378DDC-B17B-4B22-895E-998E3BB734C6 HÔTES TYPES. — Clarotes laticeps (Rüppell, 1829). ÉTYMOLOGIE. — “ essetchii ” en hommage au professeur Paul Essetchi Kouamélan, directeur de l’unité de formation et de recherche (UFR) Biosciences de l’université Felix Houphouët-Boigny de Cocody, en Côte d’Ivoire. SPÉCIMENS ÉTUDIÉS. — 25 individus montés dans la solution de Malmberg. SPÉCIMENS TYPES. — Holotype. Côte d’Ivoire • Rivière Bagoué, Samorossoba; 9°52’N, 6°21’O; 24.X.2018; Bouah Enoutchy Fabrice leg.; MNHN-HEL-1353. Paratypes. Côte d’Ivoire • 1 spécimen; mêmes données que pour l’holotype; MNHN-HEL-1354 • 2 spécimens; mêmes données que pour l’holotype; MZH, http://id.luomus.fi/KV.656 & http:// id.luomus.fi/KV.657. HABITAT. — Branchies. LOCALITÉ TYPE. — Rivière Bagoué, Samorossoba (9°52’N, 6°21’O). AUTRE LOCALITÉ. — Samorosso (9°34’N, 6°30’O) et Guinguereni (9°32’N, 6°35’O). PRÉVALENCE (%). — 100. INTENSITÉ MOYENNE. — 14,5. DIAGNOSE. — Protoancylodiscoides essetchii n. sp. se rapproche, par la morphologie des pièces sclérifiées du hapteur, de P. mansourensis, P. auratum, P. combesi et P. valentini. Toutes ces espèces se caractérisent par des crochets dorsaux de grandes tailles, avec une longue garde repliée dans la partie terminale, un court manche; des crochets ventraux plus petits que les dorsaux et présentant des orifices à la base de la garde. Elles sont également proches par la morphologie de la barre transversale ventrale en forme de V plus ou au moins ouverte et par la présence d’un onchium médio-dorsal. Cependant, P. essetchii n. sp. diffère fondamentalement de P. mansourensis, P. auratum, P. combesi et P. valentini par la morphologie ou la taille des organes copulateurs mâle et femelle: 1) le pénis filiforme est beaucoup plus court chez P. essetchii n. sp. (154,4 µm vs 325 µm; 180 µm; 228 µm; 482 µm respectivement chez P. mansourensis, P. auratum, P. combesi et P. valentini); 2) le vagin généralement en forme de V chez P. essetchii n. sp. présente une seule spire dans sa partie proximale vs plusieurs spires (4 à 5; 2 à 3 et 3 à 4) respectivement chez P. mansourensis, P. combesi et P. valentini. DESCRIPTION Taille des adultes: 857 (706-1023) µm sur 133 (97-162) µm de largeur, au niveau de l’ovaire. Crochets dorsaux très grands [a = 65 (56-69) µm; b = 47 (44-50) µm, c = 4 (2-5) µm; d = 25 (21-28) µm; e = 21 (18-23) µm], garde repliée dans sa partie terminale, 6,9 fois plus longue que le manche très court, lame longue et arquée. Barre transversale dorsale simple, avec des extrémités légèrement élargies x = 33 (29-35) µm; w = 6 (5-6) µm. Crochets ventraux [a = 32 (31-34) µm; b = 30 (25-32) µm; c = 2 (2-3) µm; d = 16 (12-18) µm; e = 19 (16- 21) µm], deux fois plus petits que les dorsaux, garde longue, manche court, avec une carène à extrémité renflée dans la partie concave de la lame, filament de la carène coiffant la lame. Barre transversale ventrale, avec deux barres jointives en forme de V x = 34 (32-36) µm; w = 6 (4-6) µm. Crochetons I, III et IV [28 (23-31) µm; 24 (20-27) µm; 31 (28-32) µm], plus longs que les crochetons II, V, VI, VII de longueur comprise entre 14 et 16 µm. Onchium médio-dorsal présent L = 20 (16-22) µm; l = 15 (11-18) µm. Pénis, tubulaire, long et filiforme Pe = 154 (114-190) µm. Pièce accessoire complexe Pa = 68 (51-83) µm. Vagin en forme de V, ouvert dans sa partie distale Lvg = 96 (77-109) µm.

Protoancylodiscoides essetchii n. sp. (Fig. 3) urn:lsid:zoobank.org:act: A9378DDC-B17B-4B22-895E-998E3BB734C6 H��TES TYPES. ��� Clarotes laticeps (R��ppell, 1829). ��TYMOLOGIE. ��� ��� essetchii ��� en hommage au professeur Paul Essetchi Kouam��lan, directeur de l���unit�� de formation et de recherche (UFR) Biosciences de l���universit�� Felix Houphou��t-Boigny de Cocody, en C��te d���Ivoire. SP��CIMENS ��TUDI��S. ��� 25 individus mont��s dans la solution de Malmberg. SP��CIMENS TYPES. ��� Holotype. C��te d���Ivoire ��� Rivi��re Bagou��, Samorossoba; 9��52���N, 6��21���O; 24.X.2018; Bouah Enoutchy Fabrice leg.; MNHN-HEL-1353. Paratypes. C��te d���Ivoire ��� 1 sp��cimen; m��mes donn��es que pour l���holotype; MNHN-HEL-1354 ��� 2 sp��cimens; m��mes donn��es que pour l���holotype; MZH, http://id.luomus.fi/KV.656 & http:// id.luomus.fi/KV.657. HABITAT. ��� Branchies. LOCALIT�� TYPE. ��� Rivi��re Bagou��, Samorossoba (9��52���N, 6��21���O). AUTRE LOCALIT��. ��� Samorosso (9��34���N, 6��30���O) et Guinguereni (9��32���N, 6��35���O). PR��VALENCE (%). ��� 100. INTENSIT�� MOYENNE. ��� 14,5. DIAGNOSE. ��� Protoancylodiscoides essetchii n. sp. se rapproche, par la morphologie des pi��ces scl��rifi��es du hapteur, de P. mansourensis, P. auratum, P. combesi et P. valentini. Toutes ces esp��ces se caract��risent par des crochets dorsaux de grandes tailles, avec une longue garde repli��e dans la partie terminale, un court manche; des crochets ventraux plus petits que les dorsaux et pr��sentant des orifices �� la base de la garde. Elles sont ��galement proches par la morphologie de la barre transversale ventrale en forme de V plus ou au moins ouverte et par la pr��sence d���un onchium m��dio-dorsal. Cependant, P. essetchii n. sp. diff��re fondamentalement de P. mansourensis, P. auratum, P. combesi et P. valentini par la morphologie ou la taille des organes copulateurs m��le et femelle: 1) le p��nis filiforme est beaucoup plus court chez P. essetchii n. sp. (154,4 ��m vs 325 ��m; 180 ��m; 228 ��m; 482 ��m respectivement chez P. mansourensis, P. auratum, P. combesi et P. valentini); 2) le vagin g��n��ralement en forme de V chez P. essetchii n. sp. pr��sente une seule spire dans sa partie proximale vs plusieurs spires (4 �� 5; 2 �� 3 et 3 �� 4) respectivement chez P. mansourensis, P. combesi et P. valentini. DESCRIPTION Taille des adultes: 857 (706-1023) ��m sur 133 (97-162) ��m de largeur, au niveau de l���ovaire. Crochets dorsaux tr��s grands [a = 65 (56-69) ��m; b = 47 (44-50) ��m, c = 4 (2-5) ��m; d = 25 (21-28) ��m; e = 21 (18-23) ��m], garde repli��e dans sa partie terminale, 6,9 fois plus longue que le manche tr��s court, lame longue et arqu��e. Barre transversale dorsale simple, avec des extr��mit��s l��g��rement ��largies x = 33 (29-35) ��m; w = 6 (5-6) ��m. Crochets ventraux [a = 32 (31-34) ��m; b = 30 (25-32) ��m; c = 2 (2-3) ��m; d = 16 (12-18) ��m; e = 19 (16- 21) ��m], deux fois plus petits que les dorsaux, garde longue, manche court, avec une car��ne �� extr��mit�� renfl��e dans la partie concave de la lame, filament de la car��ne coiffant la lame. Barre transversale ventrale, avec deux barres jointives en forme de V x = 34 (32-36) ��m; w = 6 (4-6) ��m. Crochetons I, III et IV [28 (23-31) ��m; 24 (20-27) ��m; 31 (28-32) ��m], plus longs que les crochetons II, V, VI, VII de longueur comprise entre 14 et 16 ��m. Onchium m��dio-dorsal pr��sent L = 20 (16-22) ��m; l = 15 (11-18) ��m. P��nis, tubulaire, long et filiforme Pe = 154 (114-190) ��m. Pi��ce accessoire complexe Pa = 68 (51-83) ��m. Vagin en forme de V, ouvert dans sa partie distale Lvg = 96 (77-109) ��m., Published as part of Bouah, Enoutchy Fabrice, N'Douba, Valentin & Pariselle, Antoine, 2021, Deux nouveaux Protoancylodiscoides Paperna, 1969 (Monogenea, Ancyrocephalidae) parasites branchiaux de Clarotes laticeps (R��ppell, 1829) (Siluriformes, Claroteidae) en C��te d'Ivoire, pp. 155-162 in Zoosystema 43 (9) on pages 157-158, DOI: 10.5252/zoosystema2021v43a9, http://zenodo.org/record/4662824

Protoancylodiscoides ivoiriensis n. sp. (Fig. 4) urn:lsid:zoobank.org:act: 0A8CFD10-BF11-4FFB-92C5-2F303A944286 H��TES TYPES. ��� Clarotes laticeps (R��ppell, 1829). ��TYMOLOGIE. ��� ��� ivoiriensis ���en r��f��rence �� la C��te d���Ivoire. SP��CIMENS ��TUDI��S. ��� 20 individus mont��s dans la solution de Malmberg. SP��CIMENS TYPES. ��� Holotype. C��te d���Ivoire ��� Rivi��re Bagou��, Samorossoba; 9��52���N, 6��21���O; 24.X.2018; Bouah Enoutchy Fabrice leg.; MNHN-HEL-1355. Paratypes. C��te d���Ivoire ��� 1 specimen; m��mes donn��es que pour l���holotype; MNHN-HEL-1356 ��� 1 specimen; m��mes donn��es que pour l���holotype; MZH, http://id.luomus.fi/KV.658. HABITAT. ��� Branchies. LOCALIT�� TYPE. ��� Rivi��re Bagou��, Samorossoba (9��52���N, 6��21���O). AUTRE LOCALIT��. ��� Samorosso (9��34���N, 6��30���O). PR��VALENCE (%). ��� 25. INTENSIT�� MOYENNE. ��� 7. DIAGNOSE. ��� Cette esp��ce diff��re de toutes ses cong��n��res pr��c��demment d��crites dans ce genre, principalement par la morphologie des crochets dorsaux et ventraux et par l���absence d���onchium dans le hapteur. Les crochets dorsaux larges, ne pr��sentent pas une garde courb��e dans la partie terminale. Les crochets ventraux, contrairement aux autres esp��ces d��j�� d��crites dans ce genre, se caract��risent par une longue garde et un long manche bien diff��renci��s. Les crochetons I, III, et IV, �� la diff��rence de ce que l���on observe chez les autres esp��ces du genre, ont conserv��s leur taille larvaire tout comme c���est le cas pour les crochetons II, V, VI, VII. DESCRIPTION Taille des adultes: 1093 (623-1429) ��m sur 215 (139- 302) ��m de largeur, au niveau de l���ovaire. Crochets dorsaux larges, garde longue, manche tr��s court, lame longue, arqu��e �� longue pointe, a = 61 (55-65) ��m; b = 50 (43-51) ��m; c = 3 (3-4) ��m; d = 28 (24-31) ��m; e = 28 (23-31) ��m. Barre transversale dorsale l��g��rement incurv��e, plus ou moins renfl��e dans sa partie m��diane avec des extr��mit��s tr��s ��paisses x = 29 (27-34) ��m; w = 3 (2-4) ��m. Crochets ventraux plus petits que les dorsaux, garde longue, manche long, parcouru par une car��ne �� filament coiffant une lame arqu��e, �� pointe courte, a = 27 (24-28) ��m; b = 23 (21-24) ��m; c = 7 (6-8) ��m; d = 16 (15-18) ��m; e = 12 (9-14) ��m. Barre transversale ventrale, en forme de V avec de deux barres jointives aux extr��mit��s l��g��rement renfl��es, x= 29 (27-34) ��m; w = 3 (2-4) ��m. Crochetons I, II, III, IV, V, VI, VII tous a l�����tat larvaire, longueur comprise entre 15 et 17 ��m. P��nis long et filiforme Pe = 103 (74- 116) ��m. Pi��ce accessoire complexe Pa = 44 (35-50) ��m. Vagin Vg = [n=5, 77 (85,5-68) ��m] l��g��rement scl��rifi��, long et tubulaire, avec une ouverture en forme d���entonnoir dans sa partie distale., Published as part of Bouah, Enoutchy Fabrice, N'Douba, Valentin & Pariselle, Antoine, 2021, Deux nouveaux Protoancylodiscoides Paperna, 1969 (Monogenea, Ancyrocephalidae) parasites branchiaux de Clarotes laticeps (R��ppell, 1829) (Siluriformes, Claroteidae) en C��te d'Ivoire, pp. 155-162 in Zoosystema 43 (9) on pages 160-161, DOI: 10.5252/zoosystema2021v43a9, http://zenodo.org/record/4662824

Bouah, Enoutchy Fabrice, N'Douba, Valentin, Pariselle, Antoine (2021): Deux nouveaux Protoancylodiscoides Paperna, 1969 (Monogenea, Ancyrocephalidae) parasites branchiaux de Clarotes laticeps (Rüppell, 1829) (Siluriformes, Claroteidae) en Côte d'Ivoire. Zoosystema 43 (9): 155-162, DOI: 10.5252/zoosystema2021v43a9

Protoancylodiscoides ivoiriensis n. sp. (Fig. 4) urn:lsid:zoobank.org:act: 0A8CFD10-BF11-4FFB-92C5-2F303A944286 HÔTES TYPES. — Clarotes laticeps (Rüppell, 1829). ÉTYMOLOGIE. — “ ivoiriensis ”en référence à la Côte d’Ivoire. SPÉCIMENS ÉTUDIÉS. — 20 individus montés dans la solution de Malmberg. SPÉCIMENS TYPES. — Holotype. Côte d’Ivoire • Rivière Bagoué, Samorossoba; 9°52’N, 6°21’O; 24.X.2018; Bouah Enoutchy Fabrice leg.; MNHN-HEL-1355. Paratypes. Côte d’Ivoire • 1 specimen; mêmes données que pour l’holotype; MNHN-HEL-1356 • 1 specimen; mêmes données que pour l’holotype; MZH, http://id.luomus.fi/KV.658. HABITAT. — Branchies. LOCALITÉ TYPE. — Rivière Bagoué, Samorossoba (9°52’N, 6°21’O). AUTRE LOCALITÉ. — Samorosso (9°34’N, 6°30’O). PRÉVALENCE (%). — 25. INTENSITÉ MOYENNE. — 7. DIAGNOSE. — Cette espèce diffère de toutes ses congénères précédemment décrites dans ce genre, principalement par la morphologie des crochets dorsaux et ventraux et par l’absence d’onchium dans le hapteur. Les crochets dorsaux larges, ne présentent pas une garde courbée dans la partie terminale. Les crochets ventraux, contrairement aux autres espèces déjà décrites dans ce genre, se caractérisent par une longue garde et un long manche bien différenciés. Les crochetons I, III, et IV, à la différence de ce que l’on observe chez les autres espèces du genre, ont conservés leur taille larvaire tout comme c’est le cas pour les crochetons II, V, VI, VII. DESCRIPTION Taille des adultes: 1093 (623-1429) µm sur 215 (139- 302) µm de largeur, au niveau de l’ovaire. Crochets dorsaux larges, garde longue, manche très court, lame longue, arquée à longue pointe, a = 61 (55-65) µm; b = 50 (43-51) µm; c = 3 (3-4) µm; d = 28 (24-31) µm; e = 28 (23-31) µm. Barre transversale dorsale légèrement incurvée, plus ou moins renflée dans sa partie médiane avec des extrémités très épaisses x = 29 (27-34) µm; w = 3 (2-4) µm. Crochets ventraux plus petits que les dorsaux, garde longue, manche long, parcouru par une carène à filament coiffant une lame arquée, à pointe courte, a = 27 (24-28) µm; b = 23 (21-24) µm; c = 7 (6-8) µm; d = 16 (15-18) µm; e = 12 (9-14) µm. Barre transversale ventrale, en forme de V avec de deux barres jointives aux extrémités légèrement renflées, x= 29 (27-34) µm; w = 3 (2-4) µm. Crochetons I, II, III, IV, V, VI, VII tous a l’état larvaire, longueur comprise entre 15 et 17 µm. Pénis long et filiforme Pe = 103 (74- 116) µm. Pièce accessoire complexe Pa = 44 (35-50) µm. Vagin Vg = [n=5, 77 (85,5-68) µm] légèrement sclérifié, long et tubulaire, avec une ouverture en forme d’entonnoir dans sa partie distale.

Genre Protoancyrodiscoides Paperna, 1969 ESP��CE TYPE. ��� Protoancyrodiscoides chrysichthys Paperna, 1969. DIAGNOSE DU GENRE. ��� Ancyrocephalidae: hapteur avec quatre crochets (deux dorsaux, deux ventraux); deux barres transversales (une dorsale, une ventrale compos��e de deux scl��rites jointifs en forme de V); quatorze crochetons; un ou deux onchia pr��sents ou absents; trois paires de glandes c��phaliques; deux paires de taches oculaires sans cristallin; branches intestinales unies post��rieurement; testicule post��rieur intercaecal; canal d��f��rent entourant la branche intestinale gauche; une v��sicule s��minal; p��nis tubulaire avec pi��ce accessoire entourant l���extr��mit�� distale; un r��servoir prostatique; ovaire m��dian pr��-testiculaire; ouverture vaginale lat��rale gauche; canal vaginal contourn�� ou non; r��ceptacle s��minal pr��sent. Parasites des poissons siluriformes de la famille des Claroteidae et des Malapteruridae., Published as part of Bouah, Enoutchy Fabrice, N'Douba, Valentin & Pariselle, Antoine, 2021, Deux nouveaux Protoancylodiscoides Paperna, 1969 (Monogenea, Ancyrocephalidae) parasites branchiaux de Clarotes laticeps (R��ppell, 1829) (Siluriformes, Claroteidae) en C��te d'Ivoire, pp. 155-162 in Zoosystema 43 (9) on page 157, DOI: 10.5252/zoosystema2021v43a9, http://zenodo.org/record/4662824, {"references":["PAPERNA I. 1969. - Monogenetic trematodes of fish of the Volta basin and south Ghana. Bulletin de l'Institut francaise d'Afrique Noire 31: 840 - 880."]}

Protoancylodiscoides combesi Bassock Bayiha, Nack & Pariselle (Fig. 4) Type host. Chrysichthys auratus Geoffroy Saint-Hilaire. Site. Secondary gill lamellae. Type locality. Nachtigal (4��21'10.5'' N; 11��37'34.9'' E, alt. 432 m). Other localities. Mbandjock (4��28'21.3'' N; 11��53'5.7'' E, alt. 543 m), Nanga-Eboko (4��44'36.4'' N; 12��25'41.9'' E, alt. 578 m) and Belabo (4��57'47.3'' N; 13��17'36.1'' E, alt. 615 m). Other hosts. Chrysichthys nigrodigitatus (Lac��p��de) and C. longidorsalis Risch & Thys van den Audenaerde. Prevalence. 66.6% in C. auratus, 3.4% in C. nigrodigitatus and 33.3% in C. longidorsalis. Mean intensity. 10.2 �� 20 in C. auratus, 5 �� 0 in C. nigrodigitatus and 42 �� 14.2 in C. longidorsalis. Etymology. The name combesi was given to this species by Dossou in 1985, but not officially published nor illustrated, in honor of Professor C. Combes from the University of Perpignan / France for his great contribution to the knowledge of parasites. Specimens deposited. 1 Holotype MRAC n�� 37931 and 4 paratypes MRAC n�� 37932. Description (based on 31 individuals). Dorsal anchor with long and thick guard, with distal end thinner and outwardly curved, short shaft, and conical blade arched with a long point. Presence of a thick filament. Transverse dorsal bar slightly curved with rounded ends pierced with circular holes. Ventral anchors having short shaft and perpendicularly developed triangular guard with eccentric triangular fenestration. Presence of a diagonal hull and a thick filament attached to its posterior extremity. Blade ending with a short fine tip. Ventral bar made up of two symmetric arms separated medially. Haptoral hooks with the same organization as in the previous species: medioventral hook pairs I [I] and IV [VII] with a thick and long shaft; latero-ventral hooks II [V] and hooks V [IV], VI [III], VII [II] with similar shape and size (thin, without shank); latero-dorsal hooks III [VI] with poorly developed shank. Presence of a longer than wide dorsal onchium. Copulatory complex formed by a tubular penis (Pe) associated with a complex globular oval accessory piece. Vagina sclerotized spiral flared at its base and distal part. The measurements of haptoral and reproductive systems are provided in Table I. Remarks. Protoancylodiscoides combesi resembles P. mansourensis, P. chrysichthes and P. auratum by the general morphology of the hard parts of the haptor and of the accessory piece. However, it differs from P. mansourensis by the size of the ventral bar 34 (29���38) vs 41(38���43), of the dorsal anchor 66 (61���73) vs 88 (81���93), and of the penis 228 (132���299) vs 325 (302���347). Protoancylodiscoides combesi also differs from P. mansourensis, P. chrysichthes and P. auratum by the morphology of the vagina which, in P. combesi, is spirally coiled with 2���3 rings (diameter 10 to 13 ��m), unlike the other three species where there are 4 to 5 rings for P. mansourensis (diameter 24 to 27 ��m), P. chrysichthes (diameter 13 to 20 ��m) and P. auratum (diameter 8 to 12 ��m). These three species may also be differentiated from one another by the shape of the distal third of the vagina which is coiled in P. chrysichthes, turned up and cup shaped in P. auratum, and straight in P. combesi., Published as part of Bassock Bayiha, Etienne D., Nack, Jacques, Pariselle, Antoine & Bilong Bilong, Charles F., 2016, Two new species of gill parasites assigned to Protoancylodiscoides (Monogenea, Ancyrocephalidae) from Chrysichthys spp. (Siluriformes, Claroteidae) in River Sanaga (Cameroon), pp. 178-186 in Zootaxa 4170 (1) on pages 183-184, DOI: 10.11646/zootaxa.4170.1.11, http://zenodo.org/record/259827

Protoancylodiscoides auratum Bassock Bayiha, Nack & Pariselle ( Fig. 3) Type host. Chrysichthys auratus Geoffroy Saint-Hilaire. Site. Secondary gill lamellae. Type Locality. Nachtigal (4��21'10.5'' N; 11��37'34.9'' E, alt. 432 m). Other localities. Mbandjock (4��28'21.3'' N; 11��53'5.7'' E, alt. 543 m), Nanga-Eboko ( 4��44'36.4'' N; 12��25'41.9'' E, alt. 578 m) and Belabo (4��57'47.3'' N; 13��17'36.1'' E, alt. 615 m) Prevalence. 58% (14 of 24 C. auratus infected). Mean intensity. 3.4 �� 3.7. Specimens deposited. Holotype MRAC n�� 37929 and paratype MRAC n�� 37930. Etymology. The name auratum refers to the host and has been given to this species by Dossou in 1985, but not officially published (nor illustrated). Description (based on 21 individuals). The new species belongs to Protoancylodiscoides Paperna, 1969 as diagnosed by N���Douba (2000). Dorsal anchor with long and thick guard (= outer root, superficial root), distal end thinner and outwardly curved; shaft (= handle, inner root, deep root) shorter than guard; sharp and curved blade with thick base; presence of a thick filament. Dorsal transverse bar slightly curved anteriorly; both bilobed extremities separated from the central section by a constriction, anterior lobe with a hook folded medially. Ventral anchors with fenestration between shaft and guard; guard longer than shaft, presence of a hull starting at the front end of the shaft, running diagonally up to the base of the blade, blade ending in a short point; presence of a thick filament fixed to the distal end of the hull. Ventral transverse bar made up of two straight symmetrical arms separated medially. Presence of 7 pairs and 3 types of haptoral hooks according to their shape, size and position: latero-ventral hooks II [V], V [IV], VI [III], VII [II] of similar shape and size [i.e. thin, without shank (= distal subunit)], resembling those present in ancyrocephalid oncomiracidia (larval hook), corresponding to the proximal subunit (= handle + thumb + point) in Kristsky and Kulo (1999); medio-ventral hook pairs I [I] and IV [VII] enlarged with a thick and long shank; latero-dorsal hooks III [VI] with poorly developed shank. Presence of a longer than wider dorsal onchium. Copulatory complex, close to the pharynx, formed by a thin tubular penis (Pe) associated with a very complex globular accessory piece. Vagina coiled at its proximal part, then folded at the anterior part terminating by a cup shaped structure. The measurements of haptoral and reproductive sclerites are shown in Table 1. Specific names P. auratum P. combesi P. mansourensis P. chrysichthes in El-Naggar (1987) in Kritsky & Kulo (1999) Remarks. By the general morphology of the haptoral sclerites and of the accessory piece, P. a ur a t u m is close to P. mansourensis and P. chrysichthes previously described from C. auratus and C. nigrodigitatus, respectively. However it differs from P. mansourensis by the size of the ventral bar 36 (32���38) vs 41 (38���43) and of the dorsal anchor 64 (56���70) vs 88 (81���93). Protoancylodiscoides auratum also differs from these two species by the penis length 180 (141���217) vs 325 (302���347) and 255 (162���365) for P. mansourensis and P. chrysichthes respectively, and by the morphology of the vagina: its distal portion is simple but flared in P. mansourensis; it is turned up and cup shaped in P. auratum, but coiled in P. chrysichthes., Published as part of Bassock Bayiha, Etienne D., Nack, Jacques, Pariselle, Antoine & Bilong Bilong, Charles F., 2016, Two new species of gill parasites assigned to Protoancylodiscoides (Monogenea, Ancyrocephalidae) from Chrysichthys spp. (Siluriformes, Claroteidae) in River Sanaga (Cameroon), pp. 178-186 in Zootaxa 4170 (1) on pages 181-183, DOI: 10.11646/zootaxa.4170.1.11, http://zenodo.org/record/259827, {"references":["Paperna, I. (1969) Monogenetic trematodes of the fish of the Volta Bassin and south Ghana. Bulletin de l'Institut francaise d'Afrique Noire, Serie A, XXXI, 840 - 880.","Kritsky, D. C. & Kulo, S. D. (1999) Revisions of Protoancylodiscoides and Bagrobdella, with Redescription of P. chrysichthys and B. auchenoglanii (Monogenoidea: Dactylogyridae) from the Gill of Two Bagrid Catfish (Siluriformes) in Togo, Africa. Journal of the Helminthological Society of Washington, 66, 138 - 145","El-Naggar, M. M. (1987) Protoancylodiscoides mansourensis n. sp. a monogenean gill parasite of the Egyptian freshwater fish Chrysichthys auratus Geoffroy, 1809. Arab Gulf Journal of Scientific Research, Agricultural and Biological Science, B 5, 441 - 454."]}

Protoancylodiscoides combesi Bassock Bayiha, Nack & Pariselle (Fig. 4) Type host. Chrysichthys auratus Geoffroy Saint-Hilaire. Site. Secondary gill lamellae. Type locality. Nachtigal (4°21'10.5'' N; 11°37'34.9'' E, alt. 432 m). Other localities. Mbandjock (4°28'21.3'' N; 11°53'5.7'' E, alt. 543 m), Nanga-Eboko (4°44'36.4'' N; 12°25'41.9'' E, alt. 578 m) and Belabo (4°57'47.3'' N; 13°17'36.1'' E, alt. 615 m). Other hosts. Chrysichthys nigrodigitatus (Lacépède) and C. longidorsalis Risch & Thys van den Audenaerde. Prevalence. 66.6% in C. auratus, 3.4% in C. nigrodigitatus and 33.3% in C. longidorsalis. Mean intensity. 10.2 ± 20 in C. auratus, 5 ± 0 in C. nigrodigitatus and 42 ± 14.2 in C. longidorsalis. Etymology. The name combesi was given to this species by Dossou in 1985, but not officially published nor illustrated, in honor of Professor C. Combes from the University of Perpignan / France for his great contribution to the knowledge of parasites. Specimens deposited. 1 Holotype MRAC n° 37931 and 4 paratypes MRAC n° 37932. Description (based on 31 individuals). Dorsal anchor with long and thick guard, with distal end thinner and outwardly curved, short shaft, and conical blade arched with a long point. Presence of a thick filament. Transverse dorsal bar slightly curved with rounded ends pierced with circular holes. Ventral anchors having short shaft and perpendicularly developed triangular guard with eccentric triangular fenestration. Presence of a diagonal hull and a thick filament attached to its posterior extremity. Blade ending with a short fine tip. Ventral bar made up of two symmetric arms separated medially. Haptoral hooks with the same organization as in the previous species: medioventral hook pairs I [I] and IV [VII] with a thick and long shaft; latero-ventral hooks II [V] and hooks V [IV], VI [III], VII [II] with similar shape and size (thin, without shank); latero-dorsal hooks III [VI] with poorly developed shank. Presence of a longer than wide dorsal onchium. Copulatory complex formed by a tubular penis (Pe) associated with a complex globular oval accessory piece. Vagina sclerotized spiral flared at its base and distal part. The measurements of haptoral and reproductive systems are provided in Table I. Remarks. Protoancylodiscoides combesi resembles P. mansourensis, P. chrysichthes and P. auratum by the general morphology of the hard parts of the haptor and of the accessory piece. However, it differs from P. mansourensis by the size of the ventral bar 34 (29–38) vs 41(38–43), of the dorsal anchor 66 (61–73) vs 88 (81–93), and of the penis 228 (132–299) vs 325 (302–347). Protoancylodiscoides combesi also differs from P. mansourensis, P. chrysichthes and P. auratum by the morphology of the vagina which, in P. combesi, is spirally coiled with 2–3 rings (diameter 10 to 13 µm), unlike the other three species where there are 4 to 5 rings for P. mansourensis (diameter 24 to 27 µm), P. chrysichthes (diameter 13 to 20 µm) and P. auratum (diameter 8 to 12 µm). These three species may also be differentiated from one another by the shape of the distal third of the vagina which is coiled in P. chrysichthes, turned up and cup shaped in P. auratum, and straight in P. combesi.

Protoancylodiscoides auratum Bassock Bayiha, Nack & Pariselle ( Fig. 3) Type host. Chrysichthys auratus Geoffroy Saint-Hilaire. Site. Secondary gill lamellae. Type Locality. Nachtigal (4°21'10.5'' N; 11°37'34.9'' E, alt. 432 m). Other localities. Mbandjock (4°28'21.3'' N; 11°53'5.7'' E, alt. 543 m), Nanga-Eboko ( 4°44'36.4'' N; 12°25'41.9'' E, alt. 578 m) and Belabo (4°57'47.3'' N; 13°17'36.1'' E, alt. 615 m) Prevalence. 58% (14 of 24 C. auratus infected). Mean intensity. 3.4 ± 3.7. Specimens deposited. Holotype MRAC n° 37929 and paratype MRAC n° 37930. Etymology. The name auratum refers to the host and has been given to this species by Dossou in 1985, but not officially published (nor illustrated). Description (based on 21 individuals). The new species belongs to Protoancylodiscoides Paperna, 1969 as diagnosed by N’Douba (2000). Dorsal anchor with long and thick guard (= outer root, superficial root), distal end thinner and outwardly curved; shaft (= handle, inner root, deep root) shorter than guard; sharp and curved blade with thick base; presence of a thick filament. Dorsal transverse bar slightly curved anteriorly; both bilobed extremities separated from the central section by a constriction, anterior lobe with a hook folded medially. Ventral anchors with fenestration between shaft and guard; guard longer than shaft, presence of a hull starting at the front end of the shaft, running diagonally up to the base of the blade, blade ending in a short point; presence of a thick filament fixed to the distal end of the hull. Ventral transverse bar made up of two straight symmetrical arms separated medially. Presence of 7 pairs and 3 types of haptoral hooks according to their shape, size and position: latero-ventral hooks II [V], V [IV], VI [III], VII [II] of similar shape and size [i.e. thin, without shank (= distal subunit)], resembling those present in ancyrocephalid oncomiracidia (larval hook), corresponding to the proximal subunit (= handle + thumb + point) in Kristsky and Kulo (1999); medio-ventral hook pairs I [I] and IV [VII] enlarged with a thick and long shank; latero-dorsal hooks III [VI] with poorly developed shank. Presence of a longer than wider dorsal onchium. Copulatory complex, close to the pharynx, formed by a thin tubular penis (Pe) associated with a very complex globular accessory piece. Vagina coiled at its proximal part, then folded at the anterior part terminating by a cup shaped structure. The measurements of haptoral and reproductive sclerites are shown in Table 1. Specific names P. auratum P. combesi P. mansourensis P. chrysichthes in El-Naggar (1987) in Kritsky & Kulo (1999) Remarks. By the general morphology of the haptoral sclerites and of the accessory piece, P. a ur a t u m is close to P. mansourensis and P. chrysichthes previously described from C. auratus and C. nigrodigitatus, respectively. However it differs from P. mansourensis by the size of the ventral bar 36 (32–38) vs 41 (38–43) and of the dorsal anchor 64 (56–70) vs 88 (81–93). Protoancylodiscoides auratum also differs from these two species by the penis length 180 (141–217) vs 325 (302–347) and 255 (162–365) for P. mansourensis and P. chrysichthes respectively, and by the morphology of the vagina: its distal portion is simple but flared in P. mansourensis; it is turned up and cup shaped in P. auratum, but coiled in P. chrysichthes.

Cichlidogyrus djietoi n. sp. (Fig. 5) Type host. Tylochromis sudanensis Daget. Site. Gills. Type locality. Cross River at Mamf��, Cameroon (05�� 45 ' 58 " N; 9 �� 18 ' 38 " E). Other locality. Munaya River (Cross River tributary) at Akwen Bridge, Cameroon (05�� 45 ' 50 " N; 9 ��03' 39 " E). Specimens deposited. Holotype n�� 37768 and 2 paratypes n�� 37770 RMCA; 2 paratypes n�� HEL 511 MNHN. Etymology. The new species name is dedicated to Dr Djeto of the University of Yaound�� 1, Cameroon, for his technical advice during the manuscript elaboration. Description (based on 10 individuals). Adults 556 (367���658, 9) long. 163 (92���212, 10) wide at level of ovary. Pharynx globular 45 (27���62, 10) in diameter. Long dorsal anchor with guard four times longer than shaft, both thickened, sometimes presence of fenestra, blade regularly curved and not hollow: a = 59 (54���63, 16), b = 41 (36���45, 16), c = 5 (3���11, 16), d = 20 (16���25, 16), e = 11 (9���12, 16). Slightly arched and thick dorsal transverse bar, short auricles: x = 49 (44���58, 9), w = 9 (8���11, 9), y = 18 (14���21, 9), h = 10 (7���13, 17). Ventral anchor not similar to dorsal one, with very short guard and shaft, sometimes presence of numerous fenestra: a = 45 (39���48, 18), b = 42 (38���46, 18), c = 4 (2���5, 18), d = 9 (7���13, 18), e = 12 (10���13, 18). V���shaped ventral transverse bar: x = 55 (49���59, 18), w = 8 (7���10, 9). First marginal hook of medium size, third to seventh marginal hook short: Mh I = 22 (17���25, 18), Mh II = 13 (12���14, 17), Mh III = 22 (19���26, 14), Mh IV = 25 (23���28, 16), Mh V = 24 (22���26, 17), Mh VI = 23 (21���26, 18), Mh VII = 22 (18���25, 18). Tubular, thin and slightly spirally coiled penis (2 turns) starting in a bulb with developed heel: Pe = 41 (39���48, 10), He = 7 (6���9, 10). Accessory piece is a large gutter shaped band, ending in a narrow extremity which is folded back. We did not see a filament linking the AP and the penis: AP = 51 (43���56, 10). Short, arched and funnel shaped vagina: x = 10 (7 + 13, 10), w = 2 (2���3, 10). Remarks. This new species resembles its seven congeners already described from Tylochromis Regan 1920 host species (see above and C. chrysopiformis n. sp.) in having small auricles of the dorsal transverse bar (described as ���two small, hollow outgrowths on the anterior convex face��� by Pariselle & Euzet 1994), a spirally coiled penis and an accessory piece apparently not connected to the base of the penis (except for C. sigmocirrus n. sp. and C. chrysopiformis n. sp.). Cichlidogyrus djietoi n. sp. resembles C. kothiasi, C. muzumanii and C. chrysopiformis n. sp. in having marginal hook pair I more developed (22 ��m, 20.6 ��m, 24 ��m and 25 ��m, respectively), while C. sigmocirrus n. sp., C. pouyaudi, C. berrebii and C. mulimbwai have Mh I of small size (14 ��m, 12.3 ��m, 13.1 ��m and 15 ��m, respectively). By the shape of the penis and that of the accessory piece C. djietoi n. sp. is easily distinguishable from C. mulimbwai: developed (7 ��m) heel and thin short penis (41 ��m), large AP (51 ��m) vs. square heel (5 ��m) and long and thick penis (63 ��m), reduced (19 ��m) AP, respectively. Cichlidogyrus djietoi n. sp. resembles C. kothiasi by the shape of the penis and that of the accessory piece; their main differences are the dimension of sclerotized pieces, always larger in C. djietoi n. sp.: e.g. penis 41 ��m vs. 29 ��m, AP 51 ��m vs. 31 ��m, dorsal anchor length 59 ��m vs. 50 ��m, etc.; and the presence of a sclerotized vagina in C. djietoi n. sp. (vs. absence). Cichlidogyrus djietoi n. sp. resembles C. chrysopiformis n. sp. by the shape of the penis (except for that of the heel: cylindrical vs. flared) and of the accessory piece (extremities are of different shape: folded back vs. ending in three protuberances). The main differences are the dimension of sclerotized pieces of the haptor, always larger in C. djietoi n. sp. [e.g. dorsal anchor length 59 ��m vs. 50 ��m, ventral anchor length 45 ��m vs. 39 ��m, dorsal bar length 49 ��m vs. 41 ��m, etc.], and the shape of the vagina (funnel shaped in C. djietoi n. sp. vs. cylindrical in C. chrysopiformis n. sp.)., Published as part of Pariselle, Antoine, Bitja Nyom, Arnold R. & Bilong Bilong, Charles F., 2014, Four new species of Cichlidogyrus (Monogenea, Ancyrocephalidae) from Sarotherodon mvogoi and Tylochromis sudanensis (Teleostei, Cichlidae) in Cameroon, pp. 258-266 in Zootaxa 3881 (3) on page 263, DOI: 10.11646/zootaxa.3881.3.4, http://zenodo.org/record/229946, {"references":["Pariselle, A. & Euzet, L. (1994) Three new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) parasitic on Tylochromis jentinki (Steindachner, 1895) (Pisces, Cichlidae) in West Africa. Systematic Parasitology, 29, 229 - 234. http: // dx. doi. org / 10.1007 / BF 00009678"]}

Cichlidogyrus sigmocirrus n. sp. (Fig. 3) Type host. Tylochromis sudanensis Daget. Site. Gills. Type locality. Cross River at Mamf�� Cameroon (05�� 45 ' 58 " N; 9 �� 18 ' 38 " E). Other locality. Munaya River (Cross River tributary) at Akwen Bridge, Cameroon (05�� 45 ' 50 " N; 9 ��03' 39 " E). Specimens deposited. Holotype n�� 37772 and 6 paratypes n�� 37774 RMCA; 6 paratypes n�� HEL 512 MNHN. Etymology. Refers to the sigmoid shape of the penis. Description (based on 20 individuals). Adults 562 (466���650, 20) long. 105 (79���154, 20) wide at level of ovary. Pharynx globular 42 (32���48, 20) in diameter. Dorsal anchor with guard three times longer than shaft, blade regularly curved and hollow on the first two thirds: a = 35 �� 1.1 (32���37, 40), b = 32 �� 0.9 (30���33, 40), c = 3 �� 0.8 (1���5, 40), d = 9 �� 0.9 (7���11, 40), e = 10 �� 0.8 (8���12, 40). Thin and strongly arched dorsal transverse bar, very short auricles: x = 40 (32���48, 20), w = 4 (4���5, 20), y = 13 (12���16, 20), h = 7 �� 0.9 (5���9, 40). Ventral anchor similar to dorsal one but slightly smaller: a = 31 �� 0.8 (29���33, 39), b = 30 �� 0.7 (28���31, 39), c = 3 �� 0.7 (2���5, 39), d = 9 �� 0.7 (7���11, 39), e = 12 �� 0.9 (9���13, 39). Long, thin and V���shaped ventral transverse bar: x = 39 �� 1.7 (35���42, 40), w = 4 (3���5, 20). First and third to seventh marginal hook short: Mh I = 14 �� 0.5 (13���16, 39), Mh II = 12 �� 0.7 (10���13, 30), Mh III = 20 �� 1.1 (17���22, 34), Mh IV = 23 �� 0.9 (21���25, 35), Mh V = 24 �� 1 (21���26, 39), Mh VI = 22 �� 0.9 (20���25, 39), Mh VII = 21 �� 1 (18���23, 36). Tubular sinuous (slightly spirally coiled) penis starting in a bulb with reduced heel, accessory piece is a spirally coiled (1.5 turn) band wrapped round the penis and attached to the penis basal bulb by a very thin filament: Pe = 54 (49���60, 20), He = 2 (2���3, 20), AP = 44 (36���54, 20). No visible vagina. Remarks. This new species resembles its five congeners already described from species of Tylochromis Regan, 1920 [i.e. Cichlidogyrus berrebii Pariselle & Euzet, 1994; Cichlidogyrus kothiasi Pariselle & Euzet, 1994; Cichlidogyrus pouyaudi Pariselle & Euzet, 1994; Cichlidogyrus mulimbwai Muterezi Bukinga, Vanhove, Van Steenberge & Pariselle, 2012 and Cichlidogyrus muzumanii Muterezi Bukinga, Vanhove, Van Steenberge & Pariselle, 2012]; in having small auricles of the dorsal transverse bar (described as ���two small, hollow outgrowths on the anterior convex face��� by Pariselle & Euzet 1994). Its penis is not clearly spirally coiled and its accessory piece seems to be linked to the basal bulb of the penis by a thin filament, these features have not been mentioned for the other species harboured by Tylochromis spp., but they are hardly discernible. Cichlidogyrus sigmocirrus n. sp. resembles C. pouyaudi, C. berrebii, C. mulimbwai in having marginal hook I of small size (14 ��m, 12.3 ��m, 13.1 ��m and 15 ��m, respectively), while C. kothiasi and C. muzumanii have a more developed marginal hook pair I (20.6 ��m and 24 ��m, respectively). By the shape of the penis C. sigmocirrus n. sp. is easily distinguishable from C. mulimbwai: reduced heel (2 ��m) and 41 ��m long vs. developed heel (9 ��m) and 54 ��m, respectively. By the shape of the penis and that of the accessory piece (AP) C. sigmocirrus n. sp. is easily distinguishable from C. berrebii: reduced heel and AP a large ribbon vs. developed heel (massive) and AP a thinner ribbon, respectively, and from C. pouyaudi: reduced heel and smooth ending of AP vs. long heel and thickened AP with ending forming a beak, respectively., Published as part of Pariselle, Antoine, Bitja Nyom, Arnold R. & Bilong Bilong, Charles F., 2014, Four new species of Cichlidogyrus (Monogenea, Ancyrocephalidae) from Sarotherodon mvogoi and Tylochromis sudanensis (Teleostei, Cichlidae) in Cameroon, pp. 258-266 in Zootaxa 3881 (3) on page 261, DOI: 10.11646/zootaxa.3881.3.4, http://zenodo.org/record/229946, {"references":["Pariselle, A. & Euzet, L. (1994) Three new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) parasitic on Tylochromis jentinki (Steindachner, 1895) (Pisces, Cichlidae) in West Africa. Systematic Parasitology, 29, 229 - 234. http: // dx. doi. org / 10.1007 / BF 00009678","Muterezi Bukinga, F., Vanhove, M. P. M., Van Steenberge, M. & Pariselle, A. (2012) Ancyrocephalidae (Monogenea) of Lake Tanganyika: III: the Cichlidogyrus gill parasites of the world's biggest cichlid and of the non - endemic tribes Haplochromini, Tilapiini and Tylochromini (Teleostei, Cichlidae), with description of five new species. Parasitology Research, 111, 2049 - 2061. http: // dx. doi. org / 10.1007 / s 00436 - 012 - 3052 - 1"]}

Cichlidogyrus mvogoi n. sp. (Fig. 2) Type host. Sarotherodon mvogoi (Thys van den Audenaerde). Site. Gills. Type locality. Nyong River at Ayos, Cameroon (03�� 54 ' 46 " N; 12 �� 30 ' 25 " E). Other locality. Soo River at NkolSo���o, Cameroon (03�� 19 ' 21 " N; 11 �� 28 ' 51 " E). Specimens deposited. Holotype n�� 37780 and 10 paratypes n�� 37781 RMCA; 10 paratypes n�� HEL 514 MNHN. Etymology. Named after the host species. Description (based on 24 individuals). Adults 684 (564���881, 24) long. 133 (113���163, 24) wide at level of ovary. Pharynx globular 31 (27���36, 24) in diameter. Dorsal anchor with guard four times longer than shaft and regularly curved blade: a = 42 �� 1.3 (39���45, 47), b = 35 �� 1.3 (32���37, 47), c = 3 �� 0.5 (2���4, 47), d = 12 �� 0.9 (11���14, 47), e = 10 �� 0.8 (8���11, 47). Arched dorsal transverse bar: x = 31 (27���38, 23), w = 7 (6���9, 24), y = 14 (11���16, 23), h = 14 �� 0.9 (12���16, 48). Ventral anchor similar to dorsal one but slightly larger: a = 45 �� 1.4 (42���48, 47), b = 39 �� 1.1 (37���42, 47), c = 3 �� 0.6 (2���4, 47), d = 12 �� 1 (9���14, 47), e = 12 �� 1 (10���14, 47). V���shaped ventral transverse bar, branches straight: x = 30 �� 1.4 (27���33, 48), w = 6 (5���8, 24). First and third to seventh marginal hook short: Mh I = 13 �� 0.4 (12���14, 43), Mh II = 11 �� 0.6 (10���12, 38), Mh III = 15 �� 0.7 (13���17, 44), Mh IV = 18 �� 0.6 (17���19, 41), Mh V = 21 �� 0.9 (19���23, 44), Mh VI = 19 �� 0.8 (17���20, 41), Mh VII = 15 �� 0.6 (13���16, 37). Very long and thin spirally coiled (2 turns) penis (not easy to measure) starting in a bulb with marked heel, accessory piece complicated: Pe = 280 (213���317, 21), He = 8 (6���10, 24), AP = 44 (37���51, 24). Very long and thin spirally coiled vagina (double pitch), no valuable length could be taken. Remarks. Cichlidogyrus mvogoi n. sp. is the only member of this genus which shows the combination of a long (> 100 ��m), thin and spirally coiled penis and a short marginal hook pair I. All other species with a penis of that length have Mh 1 of medium size (Cichlidogyrus arthracanthus Paperna, 1960) or of large size (Cichlidogyrus euzeti Dossou & Birgi, 1984, Cichlidogyrus longicirrus Paperna, 1965 and Cichlidogyrus sanseoi Pariselle & Euzet, 2004)., Published as part of Pariselle, Antoine, Bitja Nyom, Arnold R. & Bilong Bilong, Charles F., 2014, Four new species of Cichlidogyrus (Monogenea, Ancyrocephalidae) from Sarotherodon mvogoi and Tylochromis sudanensis (Teleostei, Cichlidae) in Cameroon, pp. 258-266 in Zootaxa 3881 (3) on page 260, DOI: 10.11646/zootaxa.3881.3.4, http://zenodo.org/record/229946, {"references":["Paperna, I. (1960) Studies on monogenetic trematodes in Israel. 2 Monogenetic trematodes of cichlids. Bamidgeh, 12, 20 - 33.","Dossou, C. & Birgi, E. (1984) Monogenes parasites d' Hemichromis fasciatus Peters, 1857 (Teleostei, Cichlidae). Annales des Sciences Naturelles, Zoologie, Paris, 6, 101 - 109.","Paperna, I. (1965) Monogenetic Trematodes collected from fresh water fish in southern Ghana. Bamidgeh, Bulletin of Fish Culture in Israel, 17, 107 - 115.","Pariselle, A. & Euzet, L. (2004) Two new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) gill parasites on Hemichromis fasciatus Peters, 1858 in Africa, with remarks on parasite geographical distribution. Parasite, 11, 359 - 364. http: // dx. doi. org / 10.1051 / parasite / 2004114359"]}

Cichlidogyrus djietoi n. sp. (Fig. 5) Type host. Tylochromis sudanensis Daget. Site. Gills. Type locality. Cross River at Mamfé, Cameroon (05° 45 ' 58 " N; 9 ° 18 ' 38 " E). Other locality. Munaya River (Cross River tributary) at Akwen Bridge, Cameroon (05° 45 ' 50 " N; 9 °03' 39 " E). Specimens deposited. Holotype n° 37768 and 2 paratypes n° 37770 RMCA; 2 paratypes n° HEL 511 MNHN. Etymology. The new species name is dedicated to Dr Djeto of the University of Yaoundé 1, Cameroon, for his technical advice during the manuscript elaboration. Description (based on 10 individuals). Adults 556 (367–658, 9) long. 163 (92–212, 10) wide at level of ovary. Pharynx globular 45 (27–62, 10) in diameter. Long dorsal anchor with guard four times longer than shaft, both thickened, sometimes presence of fenestra, blade regularly curved and not hollow: a = 59 (54–63, 16), b = 41 (36–45, 16), c = 5 (3–11, 16), d = 20 (16–25, 16), e = 11 (9–12, 16). Slightly arched and thick dorsal transverse bar, short auricles: x = 49 (44–58, 9), w = 9 (8–11, 9), y = 18 (14–21, 9), h = 10 (7–13, 17). Ventral anchor not similar to dorsal one, with very short guard and shaft, sometimes presence of numerous fenestra: a = 45 (39–48, 18), b = 42 (38–46, 18), c = 4 (2–5, 18), d = 9 (7–13, 18), e = 12 (10–13, 18). V–shaped ventral transverse bar: x = 55 (49–59, 18), w = 8 (7–10, 9). First marginal hook of medium size, third to seventh marginal hook short: Mh I = 22 (17–25, 18), Mh II = 13 (12–14, 17), Mh III = 22 (19–26, 14), Mh IV = 25 (23–28, 16), Mh V = 24 (22–26, 17), Mh VI = 23 (21–26, 18), Mh VII = 22 (18–25, 18). Tubular, thin and slightly spirally coiled penis (2 turns) starting in a bulb with developed heel: Pe = 41 (39–48, 10), He = 7 (6–9, 10). Accessory piece is a large gutter shaped band, ending in a narrow extremity which is folded back. We did not see a filament linking the AP and the penis: AP = 51 (43–56, 10). Short, arched and funnel shaped vagina: x = 10 (7 + 13, 10), w = 2 (2–3, 10). Remarks. This new species resembles its seven congeners already described from Tylochromis Regan 1920 host species (see above and C. chrysopiformis n. sp.) in having small auricles of the dorsal transverse bar (described as ‘two small, hollow outgrowths on the anterior convex face’ by Pariselle & Euzet 1994), a spirally coiled penis and an accessory piece apparently not connected to the base of the penis (except for C. sigmocirrus n. sp. and C. chrysopiformis n. sp.). Cichlidogyrus djietoi n. sp. resembles C. kothiasi, C. muzumanii and C. chrysopiformis n. sp. in having marginal hook pair I more developed (22 µm, 20.6 µm, 24 µm and 25 µm, respectively), while C. sigmocirrus n. sp., C. pouyaudi, C. berrebii and C. mulimbwai have Mh I of small size (14 µm, 12.3 µm, 13.1 µm and 15 µm, respectively). By the shape of the penis and that of the accessory piece C. djietoi n. sp. is easily distinguishable from C. mulimbwai: developed (7 µm) heel and thin short penis (41 µm), large AP (51 µm) vs. square heel (5 µm) and long and thick penis (63 µm), reduced (19 µm) AP, respectively. Cichlidogyrus djietoi n. sp. resembles C. kothiasi by the shape of the penis and that of the accessory piece; their main differences are the dimension of sclerotized pieces, always larger in C. djietoi n. sp.: e.g. penis 41 µm vs. 29 µm, AP 51 µm vs. 31 µm, dorsal anchor length 59 µm vs. 50 µm, etc.; and the presence of a sclerotized vagina in C. djietoi n. sp. (vs. absence). Cichlidogyrus djietoi n. sp. resembles C. chrysopiformis n. sp. by the shape of the penis (except for that of the heel: cylindrical vs. flared) and of the accessory piece (extremities are of different shape: folded back vs. ending in three protuberances). The main differences are the dimension of sclerotized pieces of the haptor, always larger in C. djietoi n. sp. [e.g. dorsal anchor length 59 µm vs. 50 µm, ventral anchor length 45 µm vs. 39 µm, dorsal bar length 49 µm vs. 41 µm, etc.], and the shape of the vagina (funnel shaped in C. djietoi n. sp. vs. cylindrical in C. chrysopiformis n. sp.).

Cichlidogyrus gillesi n. sp. (Fig. 4) Type host: Tilapia guineensis (G��nther). Site: Gills. Type locality: Lake Ossa, Cameroon (3 �� 47 ��� 24 ���N; 10 ��01��� 22 ��� E). Specimens deposited: Holotype and 4 Cichlidogyrus digitatus Dossou, 1982 MNHN n�� HEL 276. Paratypes MNHN (1) n�� HEL 277 [note that on the same slide there are 3 voucher specimens of Cichlidogyrus digitatus Dossou, 1982 and 1 Cichlidogyrus bilongi Pariselle & Euzet, 1996]; NHMUK (1) n�� 2012.8. 30.3 [note that on the same slide there are voucher specimens of Cichlidogyrus digitatus Dossou, 1982 (3) n�� 2012.8. 30.5 and Cichlidogyrus aegypticus Ergens, 1981 (1) n�� 2012.8.30.6]; RMCA (1) n�� 37704 [on the same slide there are voucher specimens of Cichlidogyrus digitatus Dossou, 1982 (5) n�� 37705 and Cichlidogyrus cubitus Dossou, 1982 (2) n�� 37706]. Etymology: N amed after Dr Andr�� Gilles (Marseille University) who studied fish genetics as part of the ANR program. Description (based on 8 individuals): adults 417 (347���463) (8) long. 94 (80���106) (8) large at level of penis. Pharynx globular 33 (28���37) (8) in diameter. Short dorsal anchor with guard two times longer than shaft and a regularly curved blade: a = 25 (24���27) (16), b = 20 (18���23) (16), c = 5 (4���6) (16), d = 10 (6���11) (16), e = 9 (8���11) (16). Regularly arched and long dorsal transverse bar, tapering toward the extremities: x = 39 (32���46) (8), w = 4 (3���5) (8), y = 14 (12���16) (8), h = 16 (13���19) (15). Ventral anchor same shape as dorsal, but slightly larger: a = 30 (29���31) (15), b = 26 (23���28) (16), c = 5 (4���7) (16), d = 12 (10���14) (15), e = 11 (10���12) (16). V���shaped and thin ventral transverse bar, branches straight: x = 35 (31���39) (16), w = 5 (4���6) (8). First uncinuli of small size, third to seventh long: U I = 15 (14���16) (14), U II = 12 (11���13) (13), U III = 34 (32���36) (13), U IV = 38 (36���40) (12), U V = 39 (37���40) (12), U VI = 35 (34���38) (14), U VII = 32 (31���33) (13). Male copulatory complex made up of a curved and strong penis, tapering towards its extremity, starting perpendicularly as a large ovoid bulb, a very large trapezoid heel, and a S-shaped accessory piece ending in a large hook with 7���8 tubercles and a triangular expansion on its convex face: Pe = 57 (54���62) (8), He = 13 (10���16) (8), AP = 39 (35���43) (8). Short, S���shaped vagina with thick and wrinkled wall: x = 17 (12���29) (7), w = 3 (2��� 3) (7). Remarks: Considering the morphology of the U 1 of small size, and U III to U VII long, of the MCC (penis with perpendicular and large proximal bulb, S-shaped accessory piece without associated auxiliary plate), and the presence of a sclerotised vagina, C. gillesi n. sp. resembles Cichlidogyrus anthemocolpos Dossou, 1982; Cichlidogyrus bonhommei Pariselle & Euzet, 1998; Cichlidogyrus bouvii Pariselle & Euzet, 1997; Cichlidogyrus dossoui Dou��llou, 1993; Cichlidogyrus douellouae Pariselle, Bilong Bilong & Euzet, 2003; Cichlidogyrus ergensi Dossou, 1982; Cichlidogyrus flexicolpos Pariselle & Euzet, 1995; Cichlidogyrus hemi Pariselle & Euzet, 1998; Cichlidogyrus kouassii N���Douba, Thys van den Audenaerde & Pariselle, 1997; Cichlidogyrus legendrei Pariselle & Euzet, 2003; Cichlidogyrus lemoallei Pariselle & Euzet, 2003; Cichlidogyrus ouedraogoi Pariselle & Euzet, 1996; Cichlidogyrus tiberianus and Cichlidogyrus vexus Pariselle & Euzet, 1995. The new species could be distinguished from all these others by the size and shape of the heel of the penis (large, trapezoid) and as well as that of the vagina (S-shaped, large and wrinkle walled)., Published as part of Pariselle, Antoine, Bitja Nyom, Arnold R. & Bilong Bilong, Charles F., 2013, Checklist of the ancyrocephalids (Monogenea) parasitizing Tilapia species in Cameroon, with the description of three new species in Zootaxa 3599 (1), DOI: 10.5281/zenodo.221201, {"references":["Dossou, C. (1982) Parasites de Poissons d'eau douce du Benin III. Especes nouvelles du genre Cichlidogyrus (Monogenea) parasites de Cichlidae. Bulletin de l'IFAN, 44, 295 - 322.","Pariselle, A. & Euzet, L. (1996) Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae): gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species. Systematic Parasitology, 34, 109 - 124. http: // dx. doi. org / 10.1007 / BF 00009685","Ergens, R. (1981) Nine species of the genus Cichlidogyrus Paperna, 1960 (Monogenea: Ancyrocephalinae) from Egyptian fishes. Folia Parasitologica (Praha), 28, 205 - 214.","Pariselle, A. & Euzet, L. (1998) Five new species of Cichlidogyrus (Monogenea, Ancyrocephalidae) from Tilapia brevimanus, T. buttikoferi and T. cessiana from the Guinea, Ivory Coast and Sierra Leone (West Africa). Folia Parasitologica, 45, 275 - 282.","Pariselle, A. & Euzet, L. (1997) New species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae), from the gills of Sarotherodon occidentalis (Daget) (Osteichthyes, Cichlidae) in Guinea and Sierra Leone (West Africa). Systematic Parasitology, 38, 221 - 230. http: // dx. doi. org / 10.1023 / A: 1005803202543","Douellou, L. (1993) Monogeneans of the genus Cichlidogyrus Paperna, 1960 (Dactylogyridae: Ancyrocephalinae) from cichlid fishes of Lake Kariba (Zimbabwe) with descriptions of five new species. Systematic Parasitology, 25, 159 - 186. http: // dx. doi. org / 10.1007 / BF 00007007","Pariselle, A., Bilong Bilong, C. & Euzet, L. (2003) Four new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae), all gill parasites from African mouthbreeder tilapias of the genera Sarotherodon and Oreochromis (Pisces, Cichlidae), with a re - description of C. thurstonae Ergens, 1981. Systematic Parasitology, 56, 201 - 210. http: // dx. doi. org / 10.1023 / B: SYPA. 0000003807.27452. bd","N'Douba, V., Thys Van Den Audenaerde, D. F. E. & Pariselle, A. (1997) Description d'une espece nouvelle de Monogene ectoparasite branchial de Tilapia guineensis (Bleeker, 1862) (Cichlidae) en Cote d'Ivoire. Journal of African Zoology, 111, 429 - 433."]}

Scutogyrus vanhovei n. sp. (Fig. 5) Type host: Tilapia mariae Boulenger. Site: Gills. Type locality: Lake Ossa, Cameroon (3 �� 47 ��� 24 ���N; 10 ��01��� 22 ��� E). Specimens deposited: Holotype MNHN n�� HEL 278. Paratypes MNHN (3) n�� HEL 279 [on the same slide there are 2 voucher specimens of Cichlidogyrus testificatus Dossou, 1982]; NHMUK (3) n�� 2012.8. 30.4 [note that on the same slide there are voucher specimens of Cichlidogyrus digitatus Dossou, 1982 (1) n�� 2012.8. 30.7 and Cichlidogyrus slembroucki Pariselle & Euzet, 1998 (1) n�� 2012.8.30.8]; RMCA (1) n�� 37707 [note that on the same slide there are voucher specimens of Cichlidogyrus digitatus Dossou, 1982 (1) n�� 37708, Cichlidogyrus ouedraogoi Pariselle & Euzet, 1996 (1) n�� 37709 and Cichlidogyrus slembroucki Pariselle & Euzet, 1998 (1) n�� 37710]. Etymology: Named after Maarten M. P. Vanhove, a PhD student working on monogenean species of cichlid fishes from Lake Tanganyika. Description (based on 16 individuals): adults 480 (378���591) (16) long. 89 (70���109) (16) large at level of penis. Large and globular pharynx: 52 (41���64) (16) in diameter. Dorsal anchor with guard longer than shaft, and regularly curved blade: a = 31 (29���35) (25), b = 24 (20���27) (25), c = 8 (6���10) (24), d = 11 (8���14) (25), e = 9 (7���11) (25). Dorsal transverse bar typical of Scutogyrus with long auricle and lateral expansions: x = 46 (42���49) (16), z = 26 (22���31) (16), w = 4 (4���6) (16), y = 14 (11���16) (16), h = 31 (25���35) (16). Ventral anchor with guard two times longer than shaft, blade regularly arched: a = 31 (29���32) (27), b = 28 (26���30) (27), c = 5 (3���7) (27), d = 10 (8���12) (27), e = 11 (9���14) (27). V���shaped ventral transverse bar typical of Scutogyrus (supporting a large plate), branches straight: x = 39 �� 1.4 (36���41) (30), w = 30 (23���37) (16). First uncinuli of small size, third to seventh long: U I = 16 (15���18) (16), U II = 12 (10���13) (9), U III = 28 (24���30) (11), U IV = 31 (27���33) (14), U V = 32 (27���36) (16), U VI = 27 (25���32) (11), U VII = 27 (26���28) (13). MCC made up of a straight penis showing a distinct swollen portion (Sp) at first third, a marked heel, and a simple and straight accessory piece ending in a large and strong hook: Pe = 48 (41���64) (16), Sp = 13 (12���15) (16), He = 3 (3���4) (16), AP = 39 (35���46) (16). No sclerotised vagina. Remarks: S. vanhovei n. sp. resembles all the species of the genus by the morphology of its haptoral sclerotised pieces and that of the accessory piece of the penis. It can be distinguished by the presence of a distinct swollen portion of the penis., Published as part of Pariselle, Antoine, Bitja Nyom, Arnold R. & Bilong Bilong, Charles F., 2013, Checklist of the ancyrocephalids (Monogenea) parasitizing Tilapia species in Cameroon, with the description of three new species in Zootaxa 3599 (1), DOI: 10.5281/zenodo.221201, {"references":["Dossou, C. (1982) Parasites de Poissons d'eau douce du Benin III. Especes nouvelles du genre Cichlidogyrus (Monogenea) parasites de Cichlidae. Bulletin de l'IFAN, 44, 295 - 322.","Pariselle, A. & Euzet, L. (1998) Five new species of Cichlidogyrus (Monogenea, Ancyrocephalidae) from Tilapia brevimanus, T. buttikoferi and T. cessiana from the Guinea, Ivory Coast and Sierra Leone (West Africa). Folia Parasitologica, 45, 275 - 282.","Pariselle, A. & Euzet, L. (1996) Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae): gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species. Systematic Parasitology, 34, 109 - 124. http: // dx. doi. org / 10.1007 / BF 00009685"]}

Cichlidogyrus berminensis n. sp. (Fig. 3) Type host: Tilapia bemini Thys van den Audenaerde. Other hosts: Tilapia gutturosa Stiassny, Schliewen & Dominey, Tilapia bakossiorum Stiassny, Schliewen & Dominey, Tilapia thysi Stiassny, Schliewen & Dominey. Site: Gills. Type locality: Lake Bermin, Cameroon (5 ��09��� 22 ��� N; 9 �� 37 ��� 54 ��� E). Specimens deposited: Holotype and 4 paratypes MNHN n�� HEL 274. Paratypes MNHN (5) n�� HEL 275; NHMUK (5) n�� 2012.8.30.2; RMCA (5) n�� 37703. Etymology: Named after the type locality. Description (based on 25 individuals): adults 447 (330���724) (25) long. 65 (32���91) (25) wide at level of penis. Pharynx globular 26 (19���37) (25) in diameter. Dorsal anchor with guard four times longer than shaft and regularly curved blade: a = 35 �� 1.8 (30���38) (49), b = 27 �� 1.3 (23���29) (49), c = 3 �� 0.6 (1���4) (49), d = 12 �� 1.1 (9���14) (49), e = 9 �� 0.7 (7���11) (47). Short arched dorsal transverse bar, thick at the middle, tapering toward the extremities: x = 23 (20���25) (25), w = 5 (4���7) (25), y = 8 (6���13) (25), h = 14 �� 1.3 (11���17) (50). Ventral anchor with guard three times longer than shaft, blade regularly arched: a = 36 �� 1.8 (32���38) (46), b = 33 �� 2.1 (29���38) (47), c = 3 �� 0.7 (2���5) (48), d = 9 �� 0.9 (6���10) (47), e = 12 �� 0.8 (11���14) (48). V���shaped and thick ventral transverse bar, branches straight: x = 31 �� 2 (28���35) (50), w = 5 (4���7) (25). First uncinuli of medium size, third to seventh short: U I = 18 �� 0.9 (16���20) (49), U II = 11 �� 0.5 (11���13) (38), U III = 17 �� 0.8 (14���18) (50), U IV = 19 �� 0.8 (17���21) (48), U V = 19 �� 0.8 (18���21) (50), U VI = 19 �� 0.8 (17���20) (45), U VII = 16 �� 0.8 (14���18) (46). Male copulatory complex (MCC) with a short and slightly sinuous penis (Pe) starting as a bulb, a marked narrow heel (He) with rounded ending and a simple and straight accessory piece (AP) ending in a large hook: Pe = 27 (24���30) (25), He = 5 (4���6) (25), AP = 28 (25���30) (25). No sclerotised vagina. Remarks: By the morphology of the U 1 (of medium size), C. berminensis n. sp. resembles Cichlidogyrus albareti Pariselle & Euzet, 1998; Cichlidogyrus arfi Pariselle & Euzet, 1995; C. arthracanthus; Cichlidogyrus inconsultans (Birgi & Lambert, 1986); Cichlidogyrus kothiasi Pariselle & Euzet, 1994; Cichlidogyrus muzumani Muterezi Bukinga, Vanhove, van Steenberge & Pariselle, 2012; Cichlidogyrus nandidae Birgi & Lambert, 1986; Cichlidogyrus nshomboi Muterezi Bukinga, Vanhove, van Steenberge & Pariselle, 2012 and Cichlidogyrus reversati Pariselle & Euzet, 2003. C. albareti, C. arfi, C. arthracanthus, C. inconsultans, C. muzumani and C. nandidae all have a much longer penis (> 100,> 60,> 100,> 190,> 60,> 120 respectively vs. 27). C. nshomboi had a spirally coiled thickening at the extremity of the penis (vs. absence); C. kothiasi had a spirally coiled penis (vs. straight); and C. reversati has its penis extremity folded back (vs. straight). The MCC of C. berminensis n. sp. resembles that of Cichlidogyrus berradae Pariselle & Euzet, 2003 and that of Cichlidogyrus yanni Pariselle & Euzet, 1995, but these two species show a very large uncinuli pair 1 (26 and 24 vs. 18)., Published as part of Pariselle, Antoine, Bitja Nyom, Arnold R. & Bilong Bilong, Charles F., 2013, Checklist of the ancyrocephalids (Monogenea) parasitizing Tilapia species in Cameroon, with the description of three new species in Zootaxa 3599 (1), DOI: 10.5281/zenodo.221201, {"references":["Pariselle, A. & Euzet, L. (1998) Five new species of Cichlidogyrus (Monogenea, Ancyrocephalidae) from Tilapia brevimanus, T. buttikoferi and T. cessiana from the Guinea, Ivory Coast and Sierra Leone (West Africa). Folia Parasitologica, 45, 275 - 282.","Birgi, E. & Lambert, A. (1986) Presence chez un Nandidae (Teleosteen), Polycentropsis abbreviata Boulenger, 1901, du genre Cichlidogyrus (Monogenea, Monopisthocotylea, Ancyrocephalidae). Description de Cichlidogyrus nandidae n. sp .. Annales de Parasitologie Humaine et Comparee, 61, 521 - 528.","Pariselle, A. & Euzet, L. (1994) Three new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) parasitic on Tylochromis jentinki (Steindachner, 1895) (Pisces, Cichlidae) in West Africa. Systematic Parasitology, 29, 229 - 234.","Muterezi Bukinga, F., Vanhove, M. P. M., Van Steenberge, M & Pariselle, A. (2012) Ancyrocephalidae (Monogenea) of Lake Tanganyika: III: the Cichlidogyrus gill parasites of the world's biggest cichlid and of the non - endemic tribes Haplochromini, Tilapiini and Tylochromini (Teleostei, Cichlidae), with description of five new species. Parasitology Research, 111, 2049 - 2061. http: // dx. doi. org / 10.1007 / s 00436 - 012 - 3052 - 1"]}

Cichlidogyrus gillesi n. sp. (Fig. 4) Type host: Tilapia guineensis (Günther). Site: Gills. Type locality: Lake Ossa, Cameroon (3 ° 47 ’ 24 ”N; 10 °01’ 22 ” E). Specimens deposited: Holotype and 4 Cichlidogyrus digitatus Dossou, 1982 MNHN n° HEL 276. Paratypes MNHN (1) n° HEL 277 [note that on the same slide there are 3 voucher specimens of Cichlidogyrus digitatus Dossou, 1982 and 1 Cichlidogyrus bilongi Pariselle & Euzet, 1996]; NHMUK (1) n° 2012.8. 30.3 [note that on the same slide there are voucher specimens of Cichlidogyrus digitatus Dossou, 1982 (3) n° 2012.8. 30.5 and Cichlidogyrus aegypticus Ergens, 1981 (1) n° 2012.8.30.6]; RMCA (1) n° 37704 [on the same slide there are voucher specimens of Cichlidogyrus digitatus Dossou, 1982 (5) n° 37705 and Cichlidogyrus cubitus Dossou, 1982 (2) n° 37706]. Etymology: N amed after Dr André Gilles (Marseille University) who studied fish genetics as part of the ANR program. Description (based on 8 individuals): adults 417 (347–463) (8) long. 94 (80–106) (8) large at level of penis. Pharynx globular 33 (28–37) (8) in diameter. Short dorsal anchor with guard two times longer than shaft and a regularly curved blade: a = 25 (24–27) (16), b = 20 (18–23) (16), c = 5 (4–6) (16), d = 10 (6–11) (16), e = 9 (8–11) (16). Regularly arched and long dorsal transverse bar, tapering toward the extremities: x = 39 (32–46) (8), w = 4 (3–5) (8), y = 14 (12–16) (8), h = 16 (13–19) (15). Ventral anchor same shape as dorsal, but slightly larger: a = 30 (29–31) (15), b = 26 (23–28) (16), c = 5 (4–7) (16), d = 12 (10–14) (15), e = 11 (10–12) (16). V–shaped and thin ventral transverse bar, branches straight: x = 35 (31–39) (16), w = 5 (4–6) (8). First uncinuli of small size, third to seventh long: U I = 15 (14–16) (14), U II = 12 (11–13) (13), U III = 34 (32–36) (13), U IV = 38 (36–40) (12), U V = 39 (37–40) (12), U VI = 35 (34–38) (14), U VII = 32 (31–33) (13). Male copulatory complex made up of a curved and strong penis, tapering towards its extremity, starting perpendicularly as a large ovoid bulb, a very large trapezoid heel, and a S-shaped accessory piece ending in a large hook with 7–8 tubercles and a triangular expansion on its convex face: Pe = 57 (54–62) (8), He = 13 (10–16) (8), AP = 39 (35–43) (8). Short, S–shaped vagina with thick and wrinkled wall: x = 17 (12–29) (7), w = 3 (2– 3) (7). Remarks: Considering the morphology of the U 1 of small size, and U III to U VII long, of the MCC (penis with perpendicular and large proximal bulb, S-shaped accessory piece without associated auxiliary plate), and the presence of a sclerotised vagina, C. gillesi n. sp. resembles Cichlidogyrus anthemocolpos Dossou, 1982; Cichlidogyrus bonhommei Pariselle & Euzet, 1998; Cichlidogyrus bouvii Pariselle & Euzet, 1997; Cichlidogyrus dossoui Douëllou, 1993; Cichlidogyrus douellouae Pariselle, Bilong Bilong & Euzet, 2003; Cichlidogyrus ergensi Dossou, 1982; Cichlidogyrus flexicolpos Pariselle & Euzet, 1995; Cichlidogyrus hemi Pariselle & Euzet, 1998; Cichlidogyrus kouassii N’Douba, Thys van den Audenaerde & Pariselle, 1997; Cichlidogyrus legendrei Pariselle & Euzet, 2003; Cichlidogyrus lemoallei Pariselle & Euzet, 2003; Cichlidogyrus ouedraogoi Pariselle & Euzet, 1996; Cichlidogyrus tiberianus and Cichlidogyrus vexus Pariselle & Euzet, 1995. The new species could be distinguished from all these others by the size and shape of the heel of the penis (large, trapezoid) and as well as that of the vagina (S-shaped, large and wrinkle walled).

Ligophorus hamzati n. sp. (Fig. 5) TYPE MATERIAL. — Holotype MNHN HEL315; paratypes MNHN (9) HEL316, BMNH (10) 2012.12.17.4. MATERIAL EXAMINED. — 30 specimens mounted in ammonium picrate-glycerol. TYPE HOST. — Liza grandisquamis (Mugilidae). SITE OF INFECTION. — Gills, between secondary gill lamellae. TYPE LOCALITY. — Grand Lahou Lagoon, Ivory Coast (5°08’11”N, 5°01’33”E). ETYMOLOGY. — Hamzati is given for Hamzat, name of the son of the first author of this article. FIG. 5. – Ligophorus hamzati n. sp.: morphological structures as in Fig. 1. Abbreviations: see Material & Methods. Scale bar: 30 µm. DESCRIPTION Flattened adult, 580 ± 33 (410-537) [30] long and 80 ± 10 (65-116) [30] wide at gonad level, pharynx: 26 (20-33) [28] larger diameter. Haptor well demarcated with 14 marginal hooks: 13 ± 0.9 (8-17) [360] long. Dorsal anchor with guard two time longer than shaft: a = 43 ± 4 (34-50) [60]; b = 34 ± 3 (28-39) [60]; c = 6 ± 0.7 (4-7) [60]; d = 13 ± 1.5 (9-16) [60]; e = 7 ± 0.8 (6-9) [60]. Dorsal bar V-shaped: 20 ± 2 (17-24) [30] long, 4 ± 0.7 (3-6) [30] wide and 7 ± 1.1 (5-10) [30] high. Ventral anchor: a = 42 ± 2 (36-45) [60]; b = 34 ± 2 (31-37) [60]; c = 7 ± 0.8 (5-10) [60]; d = 11 ± 1.3 (8-14) [60]; e = 7 ± 0.6 (6-9) [60]. Ventral bar, 39 ± 3 (32-47) [30] long and 9 ± 2 (6-13) [30] wide, with small antero-median protuberance and two lateral and symmetrical expansions: 10 ± 3 (4-18) [30] apart. MCO as copulatory tube: 92 ± 6 (81-100) [30] long, passes through a tubular accessory piece, 48 ± 7 (38-59) [30] long, with bifurcated distal extremity, each branches bifurcated also. Vagina: 51 ± 10 (21-67) [30] long. REMARKS This species is distinguished from all Ligophorus species by the shape of the accessory piece of the copulatory organ, which is bifurcated two times at its distal extremities. DISCUSSION The co-existence of fish hosts with a great difference in Ligophorus species richness is not exceptional. Euzet & Suriano (1977) observed only one species (Lig. angustus Euzet & Suriano, 1977) from Chelon labrosus (Risso, 1827) in the Mediterranean Sea, whereas the other mullet species may be parasitized by at least two species. Six species were reported from Liza carinata by Dmitrieva et al. (2012) and from Liza subviridis by Soo and Lim (2012), and at least 14 species were reported from M. cephalus by Dmitrieva et al. (2012). Similar differences in monogenean species richness were reported from cichlid hosts in West Africa by Pariselle et al. (2003). These authors drew a parallel between parasite species richness and host genetic diversity, which were both shaped by fluctuations of host populations through bottleneck or vicariant events. Therefore, in the case of Ligophorus from studied African mugilids, only the population of Liza bandialensis, which is endemic to a very limited area in Senegal, may have suffered numerous bottleneck events, leading to reductions in its size, and in turn to the loss of all its monogenean parasites. Among the three other widely distributed Liza species in Africa, Liza falcipinnis, which was infected by only one Ligophorus species, may have had a more stable history (and thus, a lower genetic and parasitic diversity) when compared to Liza grandisquamis, which was infected by three Ligophorus species and Liza dumerili, which according to Berrada Rkhami et al. (1993) was infected by over ten Ligophorus species., Published as part of Hafidi, Fouzia El, Diamanka, Arfang, Rkhami, Ouafae Berrada & Pariselle, Antoine, 2013, New species of Ligophorus (Monogenea, Ancyrocephalidae), parasite of Liza spp. (Teleostei, Mugilidae) off the Northwestern African coast, pp. 215-225 in Zoosystema 35 (2) on pages 222-224, DOI: 10.5252/z2013n2a6, http://zenodo.org/record/5160448, {"references":["EUZET L. & SURIANO D. M. 1977. - Ligophorus n. g. (Monogenea, Ancyrocephalidae) parasite des Mugilidae (Teleosteens) en Mediterranee. Bulletin du Museum national d'Histoire naturelle, Paris 329: 797 - 882.","DMITRIEVA E. V., GERASEV P. I., GIBSON D. I., PRON' KI- NA N. V. & GALLI P. 2012. - Descriptions and a morphological grouping of eight new species of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) from Red Sea mullets. Systematic Parasitology 81: 203 - 237.","SOO O. Y. M. & LIM L. H. S. 2012. - Eight new species of Ligophorus Euzet & Suriano, 1977 (Monogenea: Ancyrocephalidae) from mugilids off peninsular Malaysia. Raffles Bulletin of Zoology 60: 241 - 264.","PARISELLE A., MORAND S., DEVENEY M. & POUYAUD L. 2003. - Parasite species richness of closely related hosts: historical scenario and \" genetic \" hypothesis, in, COMBES C. & JOURDAN J. (eds). Taxonomie, ecologie et evolution des metazoaires parasites. Taxonomy, Ecology and Evolution of Metazoan Parasites. (Livre hommage a Louis Euzet]. Tome II. Perpignan, PUP: 147 - 166.","BERRADA RKHAMI O., PARISELLE A., EUZET L. & GABRION C. 1993. - Specificity and species diversity in West African Ligophorus (Monogenea, Ancyrocephalids) parasites of Mugilids. Symposium Paradi, Saly-Portudal, Senegal."]}

Ligophorus hamzati n. sp. (Fig. 5) TYPE MATERIAL. — Holotype MNHN HEL315; paratypes MNHN (9) HEL316, BMNH (10) 2012.12.17.4. MATERIAL EXAMINED. — 30 specimens mounted in ammonium picrate-glycerol. TYPE HOST. — Liza grandisquamis (Mugilidae). SITE OF INFECTION. — Gills, between secondary gill lamellae. TYPE LOCALITY. — Grand Lahou Lagoon, Ivory Coast (5°08’11”N, 5°01’33”E). ETYMOLOGY. — Hamzati is given for Hamzat, name of the son of the first author of this article. FIG. 5. – Ligophorus hamzati n. sp.: morphological structures as in Fig. 1. Abbreviations: see Material & Methods. Scale bar: 30 µm. DESCRIPTION Flattened adult, 580 ± 33 (410-537) [30] long and 80 ± 10 (65-116) [30] wide at gonad level, pharynx: 26 (20-33) [28] larger diameter. Haptor well demarcated with 14 marginal hooks: 13 ± 0.9 (8-17) [360] long. Dorsal anchor with guard two time longer than shaft: a = 43 ± 4 (34-50) [60]; b = 34 ± 3 (28-39) [60]; c = 6 ± 0.7 (4-7) [60]; d = 13 ± 1.5 (9-16) [60]; e = 7 ± 0.8 (6-9) [60]. Dorsal bar V-shaped: 20 ± 2 (17-24) [30] long, 4 ± 0.7 (3-6) [30] wide and 7 ± 1.1 (5-10) [30] high. Ventral anchor: a = 42 ± 2 (36-45) [60]; b = 34 ± 2 (31-37) [60]; c = 7 ± 0.8 (5-10) [60]; d = 11 ± 1.3 (8-14) [60]; e = 7 ± 0.6 (6-9) [60]. Ventral bar, 39 ± 3 (32-47) [30] long and 9 ± 2 (6-13) [30] wide, with small antero-median protuberance and two lateral and symmetrical expansions: 10 ± 3 (4-18) [30] apart. MCO as copulatory tube: 92 ± 6 (81-100) [30] long, passes through a tubular accessory piece, 48 ± 7 (38-59) [30] long, with bifurcated distal extremity, each branches bifurcated also. Vagina: 51 ± 10 (21-67) [30] long. REMARKS This species is distinguished from all Ligophorus species by the shape of the accessory piece of the copulatory organ, which is bifurcated two times at its distal extremities. DISCUSSION The co-existence of fish hosts with a great difference in Ligophorus species richness is not exceptional. Euzet & Suriano (1977) observed only one species (Lig. angustus Euzet & Suriano, 1977) from Chelon labrosus (Risso, 1827) in the Mediterranean Sea, whereas the other mullet species may be parasitized by at least two species. Six species were reported from Liza carinata by Dmitrieva et al. (2012) and from Liza subviridis by Soo and Lim (2012), and at least 14 species were reported from M. cephalus by Dmitrieva et al. (2012). Similar differences in monogenean species richness were reported from cichlid hosts in West Africa by Pariselle et al. (2003). These authors drew a parallel between parasite species richness and host genetic diversity, which were both shaped by fluctuations of host populations through bottleneck or vicariant events. Therefore, in the case of Ligophorus from studied African mugilids, only the population of Liza bandialensis, which is endemic to a very limited area in Senegal, may have suffered numerous bottleneck events, leading to reductions in its size, and in turn to the loss of all its monogenean parasites. Among the three other widely distributed Liza species in Africa, Liza falcipinnis, which was infected by only one Ligophorus species, may have had a more stable history (and thus, a lower genetic and parasitic diversity) when compared to Liza grandisquamis, which was infected by three Ligophorus species and Liza dumerili, which according to Berrada Rkhami et al. (1993) was infected by over ten Ligophorus species.

Gyrodactylus jalalii sp. nov. urn:lsid:zoobank.org:act: A89D45DC-7CA2-4807-AF2E-E34F9A9BB060 Figs 1-2 Etymology The species epithet, jalalii, honours prof. dr. Behiar Jalali Jafari (1953-2010) (obituary in Shamsi 2010). He was a researcher in aquatic animal health and fish parasitology at the Veterinary Department of the Islamic Azad University (Iran) and a keen student of monogeneans. The authors express the hope that this patronym might serve as an indication for the respect and appreciation this kind man enjoyed from his colleagues. Type material examined Thirty-one specimens, twenty of which (ethanol-preserved) were used for measurements. The holotype (MNHN HEL301) and paratypes (MNHN HEL302 ��� HEL305) are deposited in the Mus��um National d���Histoire Naturelle (Paris, France). Paratypes are deposited in the Natural History Museum (London, United Kingdom) (NHMUK 2012.9.10.1���2012.9.10.2), the Royal Museum for Central Africa (Tervuren, Belgium) (MRAC MT: 37711���37713), the Harold W. Manter Laboratory of Parasitology (Lincoln, Nebraska) (HWML-49758) and the United States National Parasite Collection (Beltsville, Maryland) (USNPC 106050). Type host Iranocichla hormuzensis Coad, 1982 (Teleostei, Perciformes, Cichlidae). Type locality Mehran River, Persian Gulf Basin (2009). Infection site Gill filaments, fins, eye. Description (measurements in micrometres (��m) and angles in degrees (��); average �� standard deviation, followed by range and number of measurements in parentheses). Body (Fig. 1A) fusiform, 361.7 �� 64.4 (294.7-528.9; n = 13) long; greatest width 128.1 �� 21.3 (98.8- 164.0; n = 13). Two head organs provided with single spicule each. Cephalic glands lateral to pharynx. Pharynx composed of two tandem, muscular bulbs. Oesophagus short. Digestive glands lateral to oesophagus. Caeca two, non-confluent, reaching level of germarium. Male copulatory organ (MCO) (Fig. 1B) armed with a broad-based, robust, recurved, apical spine 5.7 �� 1.1 (4.5-7.6; n = 8) long, 5-7 smaller flanking spines in a single row, becoming more slender from the terminal over the subterminal towards the median ones (terminology of Garc��a-V��squez et al. 2007). Testis dorsal to germarium. Germarium immediately posterior to uterus. Uterus with up to 2 embryos. Unicellular glands lateral to terminations of caeca, posterior to germarium. Haptor elongate (Fig. 1A, D). Anchor (hamulus) (Fig. 1E) 79.9 �� 4.4 (70.4-86.3; n = 20) long; point 33.9 �� 2.3 (28.3-38.4; n = 19) long; base (superficial root) 28.2 �� 3.9 (19.7-33.1; n = 20) long; deep root knob-like; groove proximally at the base of the anchor, serving as articulation to superficial (ventral) bar; shaft 49.5 �� 2.2 (45.6-55.0; n = 19) long, proximally 10.2 �� 0.8 (8.7-11.9; n = 20) wide, distally 5.7 �� 0.8 (4.5-7.4; n = 19) wide; point sharply curved, with aperture 30.5 �� 2.5 (26.2-35.4; n = 20), aperture angle 42.7 �� 3.2 (36.9-47.3; n = 19), inner aperture angle 46.9 �� 5.3 (30.1-53.3; n = 19); inner curve length 1.9 �� 0.8 (0.7-3.3; n = 18) with point curve angle 9.5 �� 4.5 (4.2-22.9; n = 18). Ventral bar (Fig. 1D) 33.5 �� 2.5 (29.8-37.7; n = 20) wide, 44.1 �� 3.9 (36.4-49.8; n = 20) long; anterior bilateral processes slender, pronounced and 6.0 �� 1.1 (4.2-7.8; n = 20) long with process to mid-length 10.4 �� 1.7 (7.5-14.8; n = 20). Median portion of ventral bar 8.3 �� 1.2 (5.7-9.8; n = 20) long; shield (ventral bar membrane) 25.4 �� 3.3 (19.8-30.1; n = 20) long, subrectangular, clearly striated in much the same way as bar proper. Deep (dorsal) bar 23.0 �� 2.8 (18.9- 29.9; n = 20) wide, medially constricted and at connection to deep root of anchors. Marginal hook (Figs 1C, 2A, B) 31.8 �� 4.1 (25.8-43.5; n = 20) long, shank with small distal bulb, 26.9 �� 4.1 (22.1-40.0; n = 20) long; sickle (hooklet) 5.4 �� 0.3 (4.5-6.1; n = 20) long, 4.3 �� 0.4 (3.6-5.1; n = 20) wide proximally, 4.5 �� 0.5 (3.8-5.3; n = 20) distally; toe depressed, 2.0 �� 0.4 (1.4-3.0; n = 20) long; convex platform; concave base; round keel; point of sickle proper as long as shaft, forming an angle of about 90 �� from each other; aperture 5.2 �� 0.5 (4.5-6.4; n = 20); instep/arch height 0.6 �� 0.1 (0.4-0.8; n = 20). Remarks In comparison with congeners parasitizing cichlids, the striated ventral bar proper and shield, as well as the conspicuous ventral bar processes, seem most reminiscent to G. zimbae Vanhove, Snoeks, Huyse & Volckaert, 2011. However, the anterolateral processes of the ventral bar of G. zimbae are more earshaped. In G. zimbae, the ventral bar shield is slender and rounded and the hooklet lacks an arched base (versus subrectangular shield and concave hooklet base in G. jalalii sp. nov.). Other cichlid Gyrodactylus with relatively large ventral bar processes include G. shariffi Cone, Arthur & Bondad-Reantaso, 1995 and G. yacatli Garc��a-V��squez, Hansen, Christison, Bron & Shinn, 2011. Just like in G. jalalii sp. nov., point and shaft of their hooklet sickle are at a right angle. These species are easily distinguished from G. jalalii sp. nov. by the smaller size of their haptoral sclerites and the ventral bar in particular (e.g., anchor 47.5 and 48.4 long, ventral bar shield 14.4 and 8.5 long, in G. shariffi and G. yacatli respectively) (Garc��a-V��squez et al. 2011). It should be noted, however, that these two species were described from cultured Oreochromis niloticus (Linnaeus, 1758) in the Philippines, resp. Mexico. The authors describing G. yacatli consider accidental infection or host switch a more likely scenario than an African origin (Garc��a-V��squez et al. 2011). Hence, G. zimbae seems to be the most comparable cichlid parasite whose natural distribution is certainly African. Comparison to Palearctic congeners followed Pugachev et al. (2009). The rather large ventral bar processes, in combination with the length of the marginal hooks, and MCO armed with one large apical spine and one row of smaller spines of similar size, resemble the morphology of G. ophiocephali Gussev, 1955 from Channa argus (Cantor, 1842) (Perciformes: Channidae) and Cyprinus carpio Linnaeus, 1758 (Cypriniformes, Cyprinidae), and to G. tokobaevi Ergens & Karabekova, 1980 from Gymnodiptychus dybowskii (Kessler, 1874) (Cypriniformes, Cyprinidae). However, in G. ophiocephali and G. tokobaevi, the processes are longer than the ventral bar proper (median length, i.e., without the shield), which is not the case in G. jalalii sp. nov. Elongate antero-lateral processes, albeit not longer than the ventral bar proper, are also found in G. hrabei Ergens, 1957 and G. mariannae Winger, Hansen, Bachmann & Bakke, 2008, parasites of Cottus Linnaeus, 1758 spp. (Scorpaeniformes, Cottidae). These species, however, have a comparatively shorter anchor root than G. jalalii sp. nov. The longitudinal striae on the ventral bar shield as well as an overlap in size of anchor and marginal hook are reminiscent of G. lotae Gussev, 1953 from Lota lota (Linnaeus, 1758) (Gadiformes, Lotidae). This species can be distinguished from G. jalalii sp. nov. because the new species has blunter and larger ventral bar processes, and a marginal hook sickle toe which joins smoothly into the platform, whereas this transition leaves a sharp ���bump��� in the platform in G. lotae., Published as part of Vanhove, Maarten P. M., Boeger, Walter A., Bukinga, Fidel Muterezi, Volckaert, Filip A. M., Huyse, Tine & Pariselle, Antoine, 2012, A new species of Gyrodactylus (Monogenea, Gyrodactylidae), an ectoparasite from the endemic Iranocichla hormuzensis (Teleostei, Cichlidae), the only Iranian cichlid, pp. 1-10 in European Journal of Taxonomy 30 on pages 4-6, DOI: 10.5852/ejt.2012.30, http://zenodo.org/record/3858518, {"references":["Shamsi Sh. 2010. Profile: Behiar Jalali (1953 - 2010). Systematic Parasitology 76: 235 - 236. http: // dx. doi. org / 10.1007 / s 11230 - 010 - 9251 - 1","Coad B. 1982. A new genus and species of cichlid endemic to southern Iran. Copeia 1: 28 - 37. http: // www. jstor. org / stable / 1444264","Garcia-Vasquez A., Hansen H. & Shinn A. P. 2007. A revised description of Gyrodactylus cichlidarum Paperna, 1968 (Gyrodactylidae) from the Nile tilapia, Oreochromis niloticus niloticus (Cichlidae), and its synonymy with G. niloticus Cone, Arthur & Bondad-Reantaso, 1995. Folia Parasitologica 54: 129 - 140.","Vanhove M. P. M., Snoeks J., Volckaert F. A. M. & Huyse T. 2011. First description of monogenean parasites in Lake Tanganyika: the cichlid Simochromis diagramma (Teleostei, Cichlidae) harbours a high diversity of Gyrodactylus species (Platyhelminthes, Monogenea). Parasitology 138 (3): 364 - 380. http: // dx. doi. org / 10.1017 / S 0031182010001356","Garcia-Vasquez A., Hansen H., Christison K. W., Bron J. E. & Shinn A. P. 2011. Description of three new species of Gyrodactylus von Nordmann, 1832 (Monogenea) parasitizing Oreochromis niloticus niloticus (L.) and O. mossambicus (Peters) (Cichlidae). Acta Parasitologica 56 (1): 20 - 33. http: // dx. doi. org / 10.2478 / s 11686 - 011 - 0005 - 2","Pugachev O. N., Gerasev P. I., Gussev A. V., Ergens R. & Khotenowsky I. 2009. Guide to Monogenoidea of freshwater fish of Palaearctic and Amur regions. Ledizione-LediPublishing, Milan.","Winger A. C., Hansen H., Bachmann L. & Bakke T. A. 2008. Gyrodactylus species (Monogenea) infecting alpine bullhead (Cottus poecilopus Heckel, 1837) in Norway and Slovakia, including the description of Gyrodactylus mariannae sp. nov. Acta Parasitologica 53 (3): 240 - 250. http: // dx. doi. org / 10.2478 / s 11686 - 008 - 0045 - 4"]}

Gyrodactylus jalalii sp. nov. urn:lsid:zoobank.org:act: A89D45DC-7CA2-4807-AF2E-E34F9A9BB060 Figs 1-2 Etymology The species epithet, jalalii, honours prof. dr. Behiar Jalali Jafari (1953-2010) (obituary in Shamsi 2010). He was a researcher in aquatic animal health and fish parasitology at the Veterinary Department of the Islamic Azad University (Iran) and a keen student of monogeneans. The authors express the hope that this patronym might serve as an indication for the respect and appreciation this kind man enjoyed from his colleagues. Type material examined Thirty-one specimens, twenty of which (ethanol-preserved) were used for measurements. The holotype (MNHN HEL301) and paratypes (MNHN HEL302 – HEL305) are deposited in the Muséum National d’Histoire Naturelle (Paris, France). Paratypes are deposited in the Natural History Museum (London, United Kingdom) (NHMUK 2012.9.10.1–2012.9.10.2), the Royal Museum for Central Africa (Tervuren, Belgium) (MRAC MT: 37711–37713), the Harold W. Manter Laboratory of Parasitology (Lincoln, Nebraska) (HWML-49758) and the United States National Parasite Collection (Beltsville, Maryland) (USNPC 106050). Type host Iranocichla hormuzensis Coad, 1982 (Teleostei, Perciformes, Cichlidae). Type locality Mehran River, Persian Gulf Basin (2009). Infection site Gill filaments, fins, eye. Description (measurements in micrometres (µm) and angles in degrees (°); average ± standard deviation, followed by range and number of measurements in parentheses). Body (Fig. 1A) fusiform, 361.7 ± 64.4 (294.7-528.9; n = 13) long; greatest width 128.1 ± 21.3 (98.8- 164.0; n = 13). Two head organs provided with single spicule each. Cephalic glands lateral to pharynx. Pharynx composed of two tandem, muscular bulbs. Oesophagus short. Digestive glands lateral to oesophagus. Caeca two, non-confluent, reaching level of germarium. Male copulatory organ (MCO) (Fig. 1B) armed with a broad-based, robust, recurved, apical spine 5.7 ± 1.1 (4.5-7.6; n = 8) long, 5-7 smaller flanking spines in a single row, becoming more slender from the terminal over the subterminal towards the median ones (terminology of García-Vásquez et al. 2007). Testis dorsal to germarium. Germarium immediately posterior to uterus. Uterus with up to 2 embryos. Unicellular glands lateral to terminations of caeca, posterior to germarium. Haptor elongate (Fig. 1A, D). Anchor (hamulus) (Fig. 1E) 79.9 ± 4.4 (70.4-86.3; n = 20) long; point 33.9 ± 2.3 (28.3-38.4; n = 19) long; base (superficial root) 28.2 ± 3.9 (19.7-33.1; n = 20) long; deep root knob-like; groove proximally at the base of the anchor, serving as articulation to superficial (ventral) bar; shaft 49.5 ± 2.2 (45.6-55.0; n = 19) long, proximally 10.2 ± 0.8 (8.7-11.9; n = 20) wide, distally 5.7 ± 0.8 (4.5-7.4; n = 19) wide; point sharply curved, with aperture 30.5 ± 2.5 (26.2-35.4; n = 20), aperture angle 42.7 ± 3.2 (36.9-47.3; n = 19), inner aperture angle 46.9 ± 5.3 (30.1-53.3; n = 19); inner curve length 1.9 ± 0.8 (0.7-3.3; n = 18) with point curve angle 9.5 ± 4.5 (4.2-22.9; n = 18). Ventral bar (Fig. 1D) 33.5 ± 2.5 (29.8-37.7; n = 20) wide, 44.1 ± 3.9 (36.4-49.8; n = 20) long; anterior bilateral processes slender, pronounced and 6.0 ± 1.1 (4.2-7.8; n = 20) long with process to mid-length 10.4 ± 1.7 (7.5-14.8; n = 20). Median portion of ventral bar 8.3 ± 1.2 (5.7-9.8; n = 20) long; shield (ventral bar membrane) 25.4 ± 3.3 (19.8-30.1; n = 20) long, subrectangular, clearly striated in much the same way as bar proper. Deep (dorsal) bar 23.0 ± 2.8 (18.9- 29.9; n = 20) wide, medially constricted and at connection to deep root of anchors. Marginal hook (Figs 1C, 2A, B) 31.8 ± 4.1 (25.8-43.5; n = 20) long, shank with small distal bulb, 26.9 ± 4.1 (22.1-40.0; n = 20) long; sickle (hooklet) 5.4 ± 0.3 (4.5-6.1; n = 20) long, 4.3 ± 0.4 (3.6-5.1; n = 20) wide proximally, 4.5 ± 0.5 (3.8-5.3; n = 20) distally; toe depressed, 2.0 ± 0.4 (1.4-3.0; n = 20) long; convex platform; concave base; round keel; point of sickle proper as long as shaft, forming an angle of about 90 ° from each other; aperture 5.2 ± 0.5 (4.5-6.4; n = 20); instep/arch height 0.6 ± 0.1 (0.4-0.8; n = 20). Remarks In comparison with congeners parasitizing cichlids, the striated ventral bar proper and shield, as well as the conspicuous ventral bar processes, seem most reminiscent to G. zimbae Vanhove, Snoeks, Huyse & Volckaert, 2011. However, the anterolateral processes of the ventral bar of G. zimbae are more earshaped. In G. zimbae, the ventral bar shield is slender and rounded and the hooklet lacks an arched base (versus subrectangular shield and concave hooklet base in G. jalalii sp. nov.). Other cichlid Gyrodactylus with relatively large ventral bar processes include G. shariffi Cone, Arthur & Bondad-Reantaso, 1995 and G. yacatli García-Vásquez, Hansen, Christison, Bron & Shinn, 2011. Just like in G. jalalii sp. nov., point and shaft of their hooklet sickle are at a right angle. These species are easily distinguished from G. jalalii sp. nov. by the smaller size of their haptoral sclerites and the ventral bar in particular (e.g., anchor 47.5 and 48.4 long, ventral bar shield 14.4 and 8.5 long, in G. shariffi and G. yacatli respectively) (García-Vásquez et al. 2011). It should be noted, however, that these two species were described from cultured Oreochromis niloticus (Linnaeus, 1758) in the Philippines, resp. Mexico. The authors describing G. yacatli consider accidental infection or host switch a more likely scenario than an African origin (García-Vásquez et al. 2011). Hence, G. zimbae seems to be the most comparable cichlid parasite whose natural distribution is certainly African. Comparison to Palearctic congeners followed Pugachev et al. (2009). The rather large ventral bar processes, in combination with the length of the marginal hooks, and MCO armed with one large apical spine and one row of smaller spines of similar size, resemble the morphology of G. ophiocephali Gussev, 1955 from Channa argus (Cantor, 1842) (Perciformes: Channidae) and Cyprinus carpio Linnaeus, 1758 (Cypriniformes, Cyprinidae), and to G. tokobaevi Ergens & Karabekova, 1980 from Gymnodiptychus dybowskii (Kessler, 1874) (Cypriniformes, Cyprinidae). However, in G. ophiocephali and G. tokobaevi, the processes are longer than the ventral bar proper (median length, i.e., without the shield), which is not the case in G. jalalii sp. nov. Elongate antero-lateral processes, albeit not longer than the ventral bar proper, are also found in G. hrabei Ergens, 1957 and G. mariannae Winger, Hansen, Bachmann & Bakke, 2008, parasites of Cottus Linnaeus, 1758 spp. (Scorpaeniformes, Cottidae). These species, however, have a comparatively shorter anchor root than G. jalalii sp. nov. The longitudinal striae on the ventral bar shield as well as an overlap in size of anchor and marginal hook are reminiscent of G. lotae Gussev, 1953 from Lota lota (Linnaeus, 1758) (Gadiformes, Lotidae). This species can be distinguished from G. jalalii sp. nov. because the new species has blunter and larger ventral bar processes, and a marginal hook sickle toe which joins smoothly into the platform, whereas this transition leaves a sharp “bump” in the platform in G. lotae.

Neodiplectanum Mizelle & Blatz, 1941 Type species. Neodiplectanum wenningeri Mizelle & Blatz, 1941 from Eucinostomus gula (Quoy & Gaimard) [Type host] and Gerres cireneus (Walbaum). Other species. Neodiplectanum magnodiscatum (Fuentes Zambrano, 1997) n. comb. from Eugerres plumieri (Cuvier); Neodiplectanum gatunense (Mendoza Franco, Roche & Torchin, 2008) n. comb. from E. brasilianus (Cuvier); N. mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb. from Diapterus rhombeus (Cuvier); Neodiplectanum sp. from E. mexicanum (Steindachner). Amended diagnosis. Body fusiform, comprising cephalic region, trunk, peduncle, haptor. Tegument smooth or scaled. Cephalic lobes poorly developed; head organs present; cephalic glands unicellular, lateral or posterolateral to pharynx. Eyes present (2 pairs). Mouth subterminal, midventral. Pharynx muscular, glandular. Intestinal caeca 2, non-confluent posteriorly, lacking diverticula. Genital pore opening midventral, posterior to copulatory complex. Genital atrium muscular. One testis, postgermarian. Copulatory complex comprising male copulatory organ, accessory piece; male copulatory organ sclerotised, tubular, nested tubes present; accessory piece sclerotised, non-articulated with male copulatory organ. Vas deferens, seminal vesicle not observed. Prostatic reservoir simple or separated into three zones. Germarium saccate, looping right intestinal caecum, dorsoventrally. Vagina sinistral, vaginal atrium heavily sclerotised. Seminal receptacle saccate. Egg not observed. Accessory adhesive organ, squamodiscs, present (two), ventral, dorsal; anterior and medial rows with rodlet dumbbell-shaped, posterior rows with spinelike rodlets; anterior rows of rodlets with open rings. Haptor with 3 (1 midventral, 2 laterodorsal) haptoral bars; 14 hooks, similar (8 marginal, 2 central, 4 dorsal); 2 pairs of anchors (1 ventral, 1 dorsal). Ventral bar with longitudinal groove. Superficial root of ventral anchor well define; deep root, twice as long than superficial root. Dorsal anchor with conspicuous superficial and deep roots. Parasites of Gerreidae (Perciformes). Remarks. Features distinguishing Neodiplectanum from the other species of Diplectaninae includes presence of male copulatory organ and accessory piece non-articulated, heavily sclerotised vaginal atrium, squamodiscs with spinelike rodlets, and dorsal anchors with conspicuous superficial and deep roots. One other diplectanine genus, Paradiplectanum Domingues & Boeger, 2008, is characterized by sharing the first three characters with member of Neodiplectanum. However, in species of Paradiplectanum, the superficial and deep roots of dorsal anchors are inconspicuous (Domingues & Boeger 2008).

Neodiplectanum magnodiscatum (Fuentes Zambrano, 1997) n. comb. (Fig. 10���16) Syn. Diplectanum magnodiscatum Fuentes Zambrano, 1997 Diplectanum magnodiscatum: Fuentes Zambrano (1997): 227���231, fig. 2 (descr) (the legends for the figures of Diplectanum magnodiscatum in Zambrano���s description are inverted with the legends of the figures of Rhamnocercus margaritae Fuentes Zambrano, 1997, described in the same publication). Type host. Eugerres plumieri (Cuvier). Site. Gills. Type locality. La Redonda, Laguna de La Restinga (10 �� 57 ���00������ ��� 11 ��03���00������ N, 64 ��01���00������ ��� 64 �� 12 ���00������W), Venezuela (Fuentes Zambrano 1997). Other record. E. plumieri from Lo��za River, San Juan, Puerto Rico; Bucan�� River, Ponce, Puerto Rico (Bunkley-Williams & Williams 1994); and Chetumal Bay (18 �� 21 ���00������ ��� 18 �� 52 ���00������ N, 87 �� 54 ���00������ ��� 88 �� 23 ���00������ W), Mexico (Aguirre-Macedo et al. 2007). Material examined. Holotype, MOBR-I- 596; vouchers USNPC No 84665 ��� 84666, CNHE 5713 (G 5.16 C). Remarks. Fuentes Zambrano (1997) proposed D. magnodiscatum Fuentes Zambrano, 1997 based on the morphology of the squamodiscs, haptoral bars, copulatory complex and sclerotised vagina. The holotype specimen studied, originally stained with Semichon���s acetocarmine, is overstained (probably the material oxidised over the time). As a result, it was not possible to measure and determinate many of the diagnostic features of internal anatomy or some sclerotised parts of the haptor. Nonetheless, we detected misinterpretations in the morphological description of the copulatory complex. The drawings of Fuentes Zambrano (1997) shows an inverted ���Y��� copulatory complex interpreted as an articulated male copulatory organ and accessory piece (fig. 2 A, B, F). However, the type specimen and voucher specimens examined clearly showed a non-articulated copulatory complex. This species is supported as a member of Neodiplectanum by the presence of a male copulatory organ nonarticulating with the accessory piece, a heavily sclerotised vaginal atrium, spine-like rodlets in the posterior rows of the squamodiscs and dorsal anchors with conspicuous superficial and deep roots. Therefore, we propose Neodiplectanum magnodiscatum n. comb.. It differs from its congeners by the possession of an accessory piece with tapered distal end, dorsal bar with a constriction at the end, and spine-like rodlets in the posterior rows with three axes (Fig. 12). Specimens identified as Diplectanum collinsi by Bunkley-Williams & Williams (1994) from E. plumieri from Puerto Rico, and Neodiplectanum wenningeri collected by Aguirre-Macedo et al. (2007) from E. plumieri from Caribbean Sea (Chetumal Bay, Mexico) were examined. These specimens are considered conspecific with N. magnodiscatum n. comb. by the presence of the accessory piece with tapered distal end, spine-like rodlets in the posterior rows of the squamodiscs with three axes, and because all share the same host species., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on pages 4-6, DOI: 10.5281/zenodo.206730, {"references":["Fuentes Zambrano, J. L. (1997) Dos especies nuevas de monogeneos (Diplectanidae) parasitos de peces marinos de la Laguna de la Restinga. Anales del Instituto de Biologia, Universidad Nacional Autonoma de Mexico, serie Zoologia, 68, 225 - 236.","Bunkley-Williams, L. & Williams E. H. Jr. (1994) Parasites of Puerto Rican freshwater sport fishes. San Juan: Puerto Rico Department of Natural and Environmental Resources, Puerto Rico. 164 pp.","Aguirre-Macedo, M. L., Vidal-Martinez, V., Gonzalez-Solis, D. & Caballero, P. I. (2007) Helminth communities of four commercially important fish species from Chetumal Bay, Mexico. Journal of Helminthology, 81, 19 - 31."]}

Neodiplectanum Mizelle & Blatz, 1941 Type species. Neodiplectanum wenningeri Mizelle & Blatz, 1941 from Eucinostomus gula (Quoy & Gaimard) [Type host] and Gerres cireneus (Walbaum). Other species. Neodiplectanum magnodiscatum (Fuentes Zambrano, 1997) n. comb. from Eugerres plumieri (Cuvier); Neodiplectanum gatunense (Mendoza Franco, Roche & Torchin, 2008) n. comb. from E. brasilianus (Cuvier); N. mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb. from Diapterus rhombeus (Cuvier); Neodiplectanum sp. from E. mexicanum (Steindachner). Amended diagnosis. Body fusiform, comprising cephalic region, trunk, peduncle, haptor. Tegument smooth or scaled. Cephalic lobes poorly developed; head organs present; cephalic glands unicellular, lateral or posterolateral to pharynx. Eyes present (2 pairs). Mouth subterminal, midventral. Pharynx muscular, glandular. Intestinal caeca 2, non-confluent posteriorly, lacking diverticula. Genital pore opening midventral, posterior to copulatory complex. Genital atrium muscular. One testis, postgermarian. Copulatory complex comprising male copulatory organ, accessory piece; male copulatory organ sclerotised, tubular, nested tubes present; accessory piece sclerotised, non-articulated with male copulatory organ. Vas deferens, seminal vesicle not observed. Prostatic reservoir simple or separated into three zones. Germarium saccate, looping right intestinal caecum, dorsoventrally. Vagina sinistral, vaginal atrium heavily sclerotised. Seminal receptacle saccate. Egg not observed. Accessory adhesive organ, squamodiscs, present (two), ventral, dorsal; anterior and medial rows with rodlet dumbbell-shaped, posterior rows with spinelike rodlets; anterior rows of rodlets with open rings. Haptor with 3 (1 midventral, 2 laterodorsal) haptoral bars; 14 hooks, similar (8 marginal, 2 central, 4 dorsal); 2 pairs of anchors (1 ventral, 1 dorsal). Ventral bar with longitudinal groove. Superficial root of ventral anchor well define; deep root, twice as long than superficial root. Dorsal anchor with conspicuous superficial and deep roots. Parasites of Gerreidae (Perciformes). Remarks. Features distinguishing Neodiplectanum from the other species of Diplectaninae includes presence of male copulatory organ and accessory piece non-articulated, heavily sclerotised vaginal atrium, squamodiscs with spinelike rodlets, and dorsal anchors with conspicuous superficial and deep roots. One other diplectanine genus, Paradiplectanum Domingues & Boeger, 2008, is characterized by sharing the first three characters with member of Neodiplectanum. However, in species of Paradiplectanum, the superficial and deep roots of dorsal anchors are inconspicuous (Domingues & Boeger 2008)., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on page 3, DOI: 10.5281/zenodo.206730, {"references":["Mizelle, J. D. & Blatz, V. (1941) Studies on Monogenetic Trematodes VI. Two new dactylogyrid genera from Florida fishes. American Midland Naturalist, 26, 105 - 109.","Fuentes Zambrano, J. L. (1997) Dos especies nuevas de monogeneos (Diplectanidae) parasitos de peces marinos de la Laguna de la Restinga. Anales del Instituto de Biologia, Universidad Nacional Autonoma de Mexico, serie Zoologia, 68, 225 - 236.","Mendoza Franco, E. F., Roche, D. G. & Torchin, M. E. (2008) New species of Diplectanum (Monogenoidea: Diplectanidae), and proposal of a new genus of the Dactylogyridae from the gills of gerreid fishes (Teleostei) from Mexico and Panama. Folia Parasitologica, 55, 171 - 179.","Domingues, M. V. & Boeger, W. A. (2008) Phylogeny and revision of Diplectanidae Monticelli, 1903 (Platyhelminthes: Monogenoidea). Zootaxa, 1698, 1 - 40."]}

Darwinoplectanum n. gen. Type species. Darwinoplectanum figueiredoi n. gen. n. sp. from Eucinostomus argenteus Baird & Girard. Site. Gills. Type locality. Municipality of Pontal do Paran��, State of Paran��, Brazil (25 �� 35 ��� 28.27 ������S, 48 �� 21 ��� 10.70 ������W) in July 2001. Other species and localities. Darwinoplectanum amphiatlanticus n. gen. n. sp. from Eucinostomus melanopterus (Bleecker), Bamboung, Sine Saloum, Senegal (13 �� 49 ��� 30.5 ������N, 16 �� 31 ��� 44 ������W) collected in May 2006, E. argenteus from Municipality of Porto Belo, State of Santa Catarina, Brazil (27 ��09��� 25.12 ������S, 48 �� 33 ��� 16.75 ������W) collected in January 2001, E. argenteus from Municipality of Pontal do Paran��, State of Paran��, Brazil (25 �� 35 ��� 28.27 ������S, 48 �� 21 ��� 10.70 ������W) collected in July 2001; and Darwinoplectanum pilittae n. gen. n. sp. from Gerres cireneus from Punta Santiago near Humacao, Puerto Rico collected in February 1992. Etymology. The genus is named after Sir Charles Robert Darwin, in celebration of his 200 th anniversary in 2009. Diagnosis. Body fusiform, comprising cephalic region, trunk, peduncle, haptor. Tegument scaled or smooth. Cephalic lobes poorly developed; head organs present; cephalic glands unicellular, lateral or posterolateral to pharynx. Eyes present (2 pairs). Mouth subterminal, midventral. Pharynx muscular, glandular. Intestinal caeca 2, nonconfluent posteriorly, lacking diverticula. Genital pore opening midventral, anterior or posterior to copulatory complex. Genital atrium muscular. One testis, postgermarian. Copulatory complex comprising male copulatory organ, accessory piece; male copulatory organ sclerotised, tubular, simple; accessory piece sclerotised, articulated with the male copulatory organ base. Vas deferens, seminal receptacle not observed. Prostatic reservoir not observed. Germarium saccate, looping right intestinal caecum, dorsoventrally. Vagina sinistral, marginal or submarginal; vaginal atrium muscular. Seminal receptacle saccate. Egg ovate with short filament. Accessory adhesive organ, squamodiscs, present (two), ventral, dorsal; rows with rodlet dumbbell-shaped; anterior rows of rodlets with open rings. Haptor with 3 (1 midventral, 2 laterodorsal) haptoral bars; 14 hooks, similar (8 marginal, 2 central, 4 dorsal); 2 pairs of anchors (1 ventral, 1 dorsal). Ventral bar with longitudinal groove. Superficial, deep roots of ventral anchor well define. Dorsal anchor with inconspicuous superficial root. Parasites of Gerreidae (Perciformes). Remarks. The new genus is defined by possessing: (1) male copulatory organ tubular, simple; (2) accessory piece, articulated with the base of the male copulatory organ; (3) vagina non-sclerotised, sinistral, marginal or submarginal; and (4) egg ovate with short filament., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on pages 8-9, DOI: 10.5281/zenodo.206730

Neodiplectanum gatunense (Mendoza Franco, Roche & Torchin, 2008) n. comb. Syn. Diplectanum gatunense Mendoza Franco, Roche & Torchin, 2008 Diplectanum gatunense: Mendoza Franco et al. (2008): 172–174, figs. 1 –4, 6– 9 (descr). Type host. Eugerres brasilianus (Cuvier). Site. Gills. Type locality. Gatun Lake, Panama Canal Watershed (9 ° 10 ’ 2.68 ’’N, 79 ° 50 ’ 13.90 ’’W), Panama (Mendoza Franco et al. 2008). Material examined. 11 Paratypes USNPC No 100847 Remarks. This species, originally placed in Diplectanum by Mendoza Franco et al. (2008), is transferred to Neodiplectanum as N. gatunense n. comb.. This species resembles N. magnodiscatum by sharing spine-like rodlets in the posterior rows of the squamodiscs with three axes, and a dorsal bar with constriction at the end. However, N. gatunense can be distinguished from this species by having indentations on the distal margins of the accessory piece, which is tapered in N. magnodiscatum; and morphometric features (table 1).

Darwinoplectanum amphiatlanticus n. sp. (figs. 26���35) Type host. Eucinostomus melanopterus (Bleecker). Site. Gills. Type locality. Bamboung, Sine Saloum, Senegal (13 �� 49 ��� 30.5 ������N, 16 �� 31 ��� 44 ������W) on May 2006. Other records. E. melanopterus from Bamboung, Sine Saloum, Senegal (13 �� 49 ��� 30.5 ������N, 16 �� 31 ��� 44 ������W) collected in May 2006; E. argenteus from Municipality of Porto Belo, State of Santa Catarina, Brazil (27 ��09��� 25.12 ������S, 48 �� 33 ��� 16.75 ������W) collected in January 2001; E. argenteus from Municipality of Pontal do Paran��, State of Paran��, Brazil (25 �� 35 ��� 28.27 ������S, 48 �� 21 ��� 10.70 ������W) collected in July 2001. Specimens deposited. Holotype, CHIOC 37546 a; 7 paratypes, CHIOC 37546 b���d, INPA 588, MPEG 000007��� 000008. USNPC 104826; 17 vouchers, CHIOC 37547���37550, INPA 589���592, MPEG 000009���000015, USNPC 104827���104828. Etymology. The specific name is derived from Greek (amphis = on both sides + atlantikon = the Atlantic [Ocean]) and refers to the occurrence of the species on the southeastern and southwestern Atlantic Ocean. Comparative measurements. Table 2. Description (based on 26 adult specimens): Body fusiform. Tegument smooth. Cephalic margin tapered; poorly developed terminal lobes; three bilateral pairs of head organs. Eyes 4; posterior pair closer together than those of anterior pair; eye granules ovate, elongate, numerous accessory granules at cephalic region at level of pharynx (Fig. 26). Pharynx ovate to subspherical; oesophagus short or absent; intestinal caeca, inward flexure at distal portion. Genital pore posterior to copulatory complex. Male copulatory organ sigmoid originating from ringlike sclerotised base; base with lateral flap (figs. 27���28). Accessory piece with proximal portion expanded, articulation process attached to base of male copulatory organ; distal portion with two rami, serving as a guide to male copulatory organ (figs. 27���28). Testis spherical to subspherical. Germarium elongate, unbranched, distal end parallel to body; o��type not observed; vaginal aperture marginal; vaginal atrium funnel-shape, slightly muscular, narrowing to short descendent tube; seminal receptacle saccate. Vitellarium extending throughout trunk, absent in regions of major reproductive organs. Egg ovate, short filament. Peduncle short to elongate. Haptor bilaterally lobed (Fig. 26). Squamodiscs similar, sub-circular, concentric rows of dumbbell-shaped rodlets becoming progressively more delicate in posterior row, easily lost in preserved specimens. Ventral anchor with elongate deep root, short depressed superficial root, straight shaft and re-curved point; point reaching level of tip of superficial root. Dorsal anchor with elongate deep root, inconspicuous superficial root, straight shaft and re-curved short point. Ventral bar, elongate, with delicate tapered ends. Paired dorsal bar, spatulate. Hooks similar with protruding thumb with slightly depressed tip, delicate slightly depressed point, slender shank; hook pairs 1���5, ventral, hook pairs 6��� 7, dorsal; hook pair 1 nearly to ventral bar end; hook pair 5 at level of distal ventral anchor shaft, others submarginal in lateral haptoral lobes; filamentous hook loop not observed. Remarks. Darwinoplectanum amphiatlanticus n. gen. n. sp. differs from its congeners in possessing an accessory piece with proximal portion expanded and distal portion with two rami. Type host. Gerres cireneus (Walbaum). Site. Gills. Type locality. Punta Santiago near Humacao, Puerto Rico, February 1992. Specimens studied. Holotype, USNPC 83400; 5 paratypes, USNPC 104824; 2 vouchers, USNPC 84667. Etymology. This species is named for Ms. Patricia A. Pilitt in recognition of her valuable work as Collection Manager of the United State National Parasite Collection (USNPC), Beltsville, Maryland, USA. Description (based on 6 adult specimens). Body slender, fusiform, total length excluding the haptor 489 (410��� 560; n = 5) long, 97 (80���110; n = 5) wide at the level of germarium. Tegument smooth. Cephalic margin tapered; poorly developed terminal lobes; three bilateral pairs of head organs, with rod-shaped secretion; cephalic glands not observed. Eyes 4, equidistant; posterior pair larger than anterior pair; granules ovate, elongate, presence of accessory granules at cephalic region. Pharynx ovate to subspherical, 40 (33���45; n = 5) in diameter; oesophagus short or absent; intestinal caeca blind, straight. Genital pore posterior to copulatory complex. Male copulatory organ arcuate originating from ring-like sclerotised base, spatulate end, 23 (21���25; n = 4) long. Accessory piece with proximal portion narrow, articulation process attached to base of male copulatory organ; expanded distal portion, 20 (n = 2). Testis not observed. Germarium tubular, elongate, unbranched, distal end parallel to body, 80 (n = 1) long; o��type not observed; Mehlis��� glands branched, stained deep purple; vaginal aperture marginal; vaginal atrium, vaginal tube, seminal receptacle not observed. Vitellarium extending throughout trunk, absent in regions of major reproductive organs. Egg ovate, short filament, 75 (74���76; n = 2) long, 57 (55���58; n = 2) wide. Peduncle short to elongate; pair of glands associated with haptor. Haptor bilaterally lobed, 92 (80���100; n = 5) long, 189 (175���200; n = 5) wide. Squamodiscs similar, sub-circular to subtrapezoidal, concentric rows of dumbbell-shaped rodlets becoming progressively more delicate in posterior row, easily lost in preserved specimens, 83 (75���88; n = 3) long, 103 (100���110; n = 3) wide. Ventral anchor with elongate deep root, short depressed superficial root, straight shaft and re-curved point; point reaching level of tip of superficial root, outer 49 (46���52; n = 3), inner 30 (28���33; n = 5), base 9 (n = 2). Dorsal anchor with elongate deep root, inconspicuous superficial root, straight shaft and re-curved short point, outer 45 (40���49; n = 5), inner 26 (24���27; n = 5), base 6 (n = 2). Ventral bar, elongate, with delicate tapered ends, 8 (8���9; n = 5) long, 108 (96���125; n = 5) wide. Paired dorsal bar, spatulate, 15 (12���18; n = 6) long, 78 (65���90; n = 6) long. Hooks similar with protruding thumb with slightly depressed tip, delicate slightly curved point, slender shank, 10 (10���11; n = 31) long; hook pairs 1���5, ventral, hook pairs 6���7, dorsal; hook pair 1 nearly to ventral bar end; hook pair 5 at level of distal ventral anchor shaft, others sub-marginal in lateral haptoral lobes; filamentous hook loop not observed. Remarks. Examination of the vouchers of Diplectanum collinsi collected from Gerres cireneus from Puerto Rico (see Bunkley-Williams & Williams 1994) indicates these specimens are members of Darwinoplectanum n. gen., described above as D. pillitae n. gen. n. sp.. The new species differs from all other species in the genus by possessing: (1) a male copulatory organ arcuate with spatulate end; (2) an accessory piece with proximal portion narrow and expanded distal portion; and (3) the size of the haptor and squamodiscs (haptor: 92 long x 189 wide vs. 49 long x 130 wide in D. figueiredoi, and 48 long X 156 wide in D. amphiatlanticus; squamodiscs: 83 long x 103 wide vs. 64 long x 73 wide in D. figuereidoi, and 48 long X 49 wide in D. amphiatlanticus)., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on pages 11-15, DOI: 10.5281/zenodo.206730, {"references":["Bunkley-Williams, L. & Williams E. H. Jr. (1994) Parasites of Puerto Rican freshwater sport fishes. San Juan: Puerto Rico Department of Natural and Environmental Resources, Puerto Rico. 164 pp."]}

Neodiplectanum mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb. Syn. Diplectanum mexicanum Mendoza Franco, Roche & Torchin, 2008 Diplectanum mexicanum: Mendoza Franco et al. (2008): 174, figs. 10–17 (descr). Type host. Diapterus rhombeus (Cuvier). Site. Gills. Type locality. Coast of Campeche State, Mexico (18 ° 48 ’ 45 ’’N, 92 °03’ 45 ’’W) in the Gulf of Mexico, Mexico (Mendoza Franco et al. 2008). Other record. D. rhombeus from Guaratuba Bay, Municipality of Guaratuba, Paraná, Brazil (25 ° 52 ’ 19 ’’S, 48 ° 39 ’02’’W) on 25 November 2000. Material examined. 7 Paratypes USNPC No 100848; 9 vouchers, CHIOC 37544 a–c, INPA 594 a–c, MPEG 000020–000022. Remarks. Diplectanum mexicanum Mendoza Franco, Roche & Torchin, 2008 is transferred to Neodiplectanum as N. mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb. because it shows all diagnostic features so far proposed for Neodiplectanum. This species can be distinguished from the other species by possessing a copulatory complex with an elongate accessory piece with bifurcate tip, distally hook-shaped; and dorsal anchors with perpendicular superficial and deep roots.

Darwinoplectanum n. gen. Type species. Darwinoplectanum figueiredoi n. gen. n. sp. from Eucinostomus argenteus Baird & Girard. Site. Gills. Type locality. Municipality of Pontal do Paraná, State of Paraná, Brazil (25 ° 35 ’ 28.27 ’’S, 48 ° 21 ’ 10.70 ’’W) in July 2001. Other species and localities. Darwinoplectanum amphiatlanticus n. gen. n. sp. from Eucinostomus melanopterus (Bleecker), Bamboung, Sine Saloum, Senegal (13 ° 49 ’ 30.5 ’’N, 16 ° 31 ’ 44 ’’W) collected in May 2006, E. argenteus from Municipality of Porto Belo, State of Santa Catarina, Brazil (27 °09’ 25.12 ’’S, 48 ° 33 ’ 16.75 ’’W) collected in January 2001, E. argenteus from Municipality of Pontal do Paraná, State of Paraná, Brazil (25 ° 35 ’ 28.27 ’’S, 48 ° 21 ’ 10.70 ’’W) collected in July 2001; and Darwinoplectanum pilittae n. gen. n. sp. from Gerres cireneus from Punta Santiago near Humacao, Puerto Rico collected in February 1992. Etymology. The genus is named after Sir Charles Robert Darwin, in celebration of his 200 th anniversary in 2009. Diagnosis. Body fusiform, comprising cephalic region, trunk, peduncle, haptor. Tegument scaled or smooth. Cephalic lobes poorly developed; head organs present; cephalic glands unicellular, lateral or posterolateral to pharynx. Eyes present (2 pairs). Mouth subterminal, midventral. Pharynx muscular, glandular. Intestinal caeca 2, nonconfluent posteriorly, lacking diverticula. Genital pore opening midventral, anterior or posterior to copulatory complex. Genital atrium muscular. One testis, postgermarian. Copulatory complex comprising male copulatory organ, accessory piece; male copulatory organ sclerotised, tubular, simple; accessory piece sclerotised, articulated with the male copulatory organ base. Vas deferens, seminal receptacle not observed. Prostatic reservoir not observed. Germarium saccate, looping right intestinal caecum, dorsoventrally. Vagina sinistral, marginal or submarginal; vaginal atrium muscular. Seminal receptacle saccate. Egg ovate with short filament. Accessory adhesive organ, squamodiscs, present (two), ventral, dorsal; rows with rodlet dumbbell-shaped; anterior rows of rodlets with open rings. Haptor with 3 (1 midventral, 2 laterodorsal) haptoral bars; 14 hooks, similar (8 marginal, 2 central, 4 dorsal); 2 pairs of anchors (1 ventral, 1 dorsal). Ventral bar with longitudinal groove. Superficial, deep roots of ventral anchor well define. Dorsal anchor with inconspicuous superficial root. Parasites of Gerreidae (Perciformes). Remarks. The new genus is defined by possessing: (1) male copulatory organ tubular, simple; (2) accessory piece, articulated with the base of the male copulatory organ; (3) vagina non-sclerotised, sinistral, marginal or submarginal; and (4) egg ovate with short filament.

Neodiplectanum gatunense (Mendoza Franco, Roche & Torchin, 2008) n. comb. Syn. Diplectanum gatunense Mendoza Franco, Roche & Torchin, 2008 Diplectanum gatunense: Mendoza Franco et al. (2008): 172���174, figs. 1 ���4, 6��� 9 (descr). Type host. Eugerres brasilianus (Cuvier). Site. Gills. Type locality. Gatun Lake, Panama Canal Watershed (9 �� 10 ��� 2.68 ������N, 79 �� 50 ��� 13.90 ������W), Panama (Mendoza Franco et al. 2008). Material examined. 11 Paratypes USNPC No 100847 Remarks. This species, originally placed in Diplectanum by Mendoza Franco et al. (2008), is transferred to Neodiplectanum as N. gatunense n. comb.. This species resembles N. magnodiscatum by sharing spine-like rodlets in the posterior rows of the squamodiscs with three axes, and a dorsal bar with constriction at the end. However, N. gatunense can be distinguished from this species by having indentations on the distal margins of the accessory piece, which is tapered in N. magnodiscatum; and morphometric features (table 1)., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on page 8, DOI: 10.5281/zenodo.206730, {"references":["Mendoza Franco, E. F., Roche, D. G. & Torchin, M. E. (2008) New species of Diplectanum (Monogenoidea: Diplectanidae), and proposal of a new genus of the Dactylogyridae from the gills of gerreid fishes (Teleostei) from Mexico and Panama. Folia Parasitologica, 55, 171 - 179."]}

Neodiplectanum mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb. Syn. Diplectanum mexicanum Mendoza Franco, Roche & Torchin, 2008 Diplectanum mexicanum: Mendoza Franco et al. (2008): 174, figs. 10���17 (descr). Type host. Diapterus rhombeus (Cuvier). Site. Gills. Type locality. Coast of Campeche State, Mexico (18 �� 48 ��� 45 ������N, 92 ��03��� 45 ������W) in the Gulf of Mexico, Mexico (Mendoza Franco et al. 2008). Other record. D. rhombeus from Guaratuba Bay, Municipality of Guaratuba, Paran��, Brazil (25 �� 52 ��� 19 ������S, 48 �� 39 ���02������W) on 25 November 2000. Material examined. 7 Paratypes USNPC No 100848; 9 vouchers, CHIOC 37544 a���c, INPA 594 a���c, MPEG 000020���000022. Remarks. Diplectanum mexicanum Mendoza Franco, Roche & Torchin, 2008 is transferred to Neodiplectanum as N. mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb. because it shows all diagnostic features so far proposed for Neodiplectanum. This species can be distinguished from the other species by possessing a copulatory complex with an elongate accessory piece with bifurcate tip, distally hook-shaped; and dorsal anchors with perpendicular superficial and deep roots., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on page 8, DOI: 10.5281/zenodo.206730, {"references":["Mendoza Franco, E. F., Roche, D. G. & Torchin, M. E. (2008) New species of Diplectanum (Monogenoidea: Diplectanidae), and proposal of a new genus of the Dactylogyridae from the gills of gerreid fishes (Teleostei) from Mexico and Panama. Folia Parasitologica, 55, 171 - 179."]}

Neodiplectanum wenningeri Mizelle & Blatz, 1941 (Figs. 2���9) Syn. Diplectanum wenningeri Oliver (1987) Neodiplectanum wenningeri: Mizelle and Blatz (1941): 107���108, figs. 11���21 (descr); Yamaguti (1963): 102, pl. 25, fig. 199 (citat); Skinner (1982): 275 (recor); Aguirre-Macedo et al. (2007): 21 ���22, 24, 29 (recor). Diplectanum wenningeri: Oliver (1987): 82, figs. 21 (synon); Mendoza Franco et al. (2008): 171 ���174, 176, fig. 5 (recor, redes). Type host. Eucinostomus gula (Quoy & Gaimard). Site. Gills. Type locality. Everglades canal, north of Everglades City, Florida, USA (Mizelle & Blatz 1941). Other record. Gerres cireneus (Walbaum) from South Biscayne Bay, Florida, USA (Skinner 1982). Material examined. Four cotypes, USNPC 36823; voucher, CNHE 5713. Remarks. Originally indicated by monotypy, N. wenningeri is the type species of the genus. Neodiplectanum wenningeri can be distinguished from the other three congeneric species by having a laterally expanded distal end of the accessory piece without ornamentation (accessory piece tapered distal end in N. magnodiscatum (Fuentes Zambrano, 1997) n. comb.; accessory piece pyriform tip possessing delicate indentations on margins in N. gatunense (Mendoza Franco, Roche & Torchin, 2008) n. comb.; accessory piece distally bifurcate and hook-shaped accessory piece in N. mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb.); and the greater total length of the anchors and bars (see table 1)., Published as part of Domingues, Marcus V., Diamanka, Arfang & Pariselle, Antoine, 2011, Monogenoids (Diplectanidae, Polyonchoinea) from the gills of mojarras (Perciformes, Gerreidae) with the resurrection of Neodiplectanum Mizelle & Blatz, 1941 and the proposal of Darwinoplectanum n. gen., pp. 1-19 in Zootaxa 3010 on page 4, DOI: 10.5281/zenodo.206730, {"references":["Mizelle, J. D. & Blatz, V. (1941) Studies on Monogenetic Trematodes VI. Two new dactylogyrid genera from Florida fishes. American Midland Naturalist, 26, 105 - 109.","Yamaguti, S. (1963) Systema Helmithum IV. Monogenea and Aspidocotylea. London-New York, Interscience Publishers. 699 pp.","Skinner, R. H. (1982) The Interrelation of water quality, gill parasites, and gill pathology of some fishes from South Biscayne Bay, Florida. Fishery Bulletin, 80, 269 - 281.","Aguirre-Macedo, M. L., Vidal-Martinez, V., Gonzalez-Solis, D. & Caballero, P. I. (2007) Helminth communities of four commercially important fish species from Chetumal Bay, Mexico. Journal of Helminthology, 81, 19 - 31.","Mendoza Franco, E. F., Roche, D. G. & Torchin, M. E. (2008) New species of Diplectanum (Monogenoidea: Diplectanidae), and proposal of a new genus of the Dactylogyridae from the gills of gerreid fishes (Teleostei) from Mexico and Panama. Folia Parasitologica, 55, 171 - 179.","Fuentes Zambrano, J. L. (1997) Dos especies nuevas de monogeneos (Diplectanidae) parasitos de peces marinos de la Laguna de la Restinga. Anales del Instituto de Biologia, Universidad Nacional Autonoma de Mexico, serie Zoologia, 68, 225 - 236."]}

Neodiplectanum wenningeri Mizelle & Blatz, 1941 (Figs. 2–9) Syn. Diplectanum wenningeri Oliver (1987) Neodiplectanum wenningeri: Mizelle and Blatz (1941): 107–108, figs. 11–21 (descr); Yamaguti (1963): 102, pl. 25, fig. 199 (citat); Skinner (1982): 275 (recor); Aguirre-Macedo et al. (2007): 21 –22, 24, 29 (recor). Diplectanum wenningeri: Oliver (1987): 82, figs. 21 (synon); Mendoza Franco et al. (2008): 171 –174, 176, fig. 5 (recor, redes). Type host. Eucinostomus gula (Quoy & Gaimard). Site. Gills. Type locality. Everglades canal, north of Everglades City, Florida, USA (Mizelle & Blatz 1941). Other record. Gerres cireneus (Walbaum) from South Biscayne Bay, Florida, USA (Skinner 1982). Material examined. Four cotypes, USNPC 36823; voucher, CNHE 5713. Remarks. Originally indicated by monotypy, N. wenningeri is the type species of the genus. Neodiplectanum wenningeri can be distinguished from the other three congeneric species by having a laterally expanded distal end of the accessory piece without ornamentation (accessory piece tapered distal end in N. magnodiscatum (Fuentes Zambrano, 1997) n. comb.; accessory piece pyriform tip possessing delicate indentations on margins in N. gatunense (Mendoza Franco, Roche & Torchin, 2008) n. comb.; accessory piece distally bifurcate and hook-shaped accessory piece in N. mexicanum (Mendoza Franco, Roche & Torchin, 2008) n. comb.); and the greater total length of the anchors and bars (see table 1).

Cichlidogyrus ergensi Dossou, 1982 Cichlidogyrus ergensi Dossou, 1982: 301-303, figs 7-9. Cichlidogyrus sp. — Ergens 1981: 212, 213. TYPE MATERIAL. — Holotype: MNHN Tj113. TYPE HOST. — Tilapia zillii (Gervais, 1848). TYPE LOCALITY. — Ouémé, Benin. ADDITIONAL HOST. — Tilapia guineensis (Bleeker, 1862) (Pariselle & Euzet 1995c). SITE. — Gills. ADDITIONAL LOCALITIES. — Cairo, Nile River, Egypt (description of Cichlidogyrus sp. by Ergens [1981]); Senegal, Guinea, Côte d’Ivoire and Congo on Tilapia guineensis (Bleeker, 1862) (Pariselle & Euzet 1995c)., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 863, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["DOSSOU C. 1982. - Parasites de poissons d'eau douce du Benin III. Especes nouvelles du genre Cichlidogyrus (Monogenea) parasites de Cichlidae. Bulletin de l'I. F. A. N. 44: 295 - 322.","ERGENS R. 1981. - Nine species of the genus Cichlidogyrus Paperna, 1960 (Monogenea: Ancyrocephalinae) from Egyptian fishes. Folia Parasitologica 28: 205 - 214.","PARISELLE A. & EUZET L. 1995 c. - Gill parasites of the genus Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) from Tilapia guineensis (Bleeker, 1862), with descriptions of six new species. Systematic Parasitology 30: 187 - 198."]}

Cichlidogyrus yanni Pariselle & Euzet, 1996 Cichlidogyrus yanni Pariselle & Euzet, 1996: 118-120, fig. 11. TYPE MATERIAL. — Holotype: MNHN 481 HF Tg90. Paratypes: MNHN 481 HFTg91, BMNH 1996.1.5.22- 25, MRAC 37.386. TYPE HOST. — Tilapia zillii (Gervais, 1848). TYPE LOCALITY. — Kogon River, Guinea. ADDITIONAL HOSTS. — Tilapia dageti Thys van den Audenaerde, 1971, T. guineensis (Bleeker, 1862), T. louka Thys van den Audenaerde, 1969, and T. walteri Thys van den Audenaerde, 1968. SITE. — Gills. ADDITIONAL LOCALITIES. — Volta Noire River, Burkina Faso on type host; Niokolo-Koba National Park, Gambia River, Senegal on T. dageti; Layo Research Station, Ebrié Lagoon, Côte d’Ivoire and Senegal River, Senegal on T. guineensis; Bourouma River, Guinea on T.louka; Cavally and Nipoué Rivers, Côte d’Ivoire on T. walteri., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 874, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PARISELLE A. & EUZET L. 1996. - Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae): gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species. Systematic Parasitology 34: 109 - 124."]}

Cichlidogyrus lemoallei Pariselle & Euzet, 2003 Cichlidogyrus lemoallei Pariselle & Euzet, 2003: 198-200, fig. 6. TYPE MATERIAL. — Holotype: MNHN 540 HF Tk67. Paratypes: MNHN 540 HF Tk68, BMNH 1997.1.29.3, MRAC 37.401, CAS M-388. TYPE HOST. — Tilapia cabrae Boulenger, 1899. TYPE LOCALITY. — Mouth of Bas Kouilou River, Congo. SITE. — Gills. ADDITIONAL LOCALITIES. — Loukoula River and Cayo Lake, Congo., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 868, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PARISELLE A. & EUZET L. 2003. - Four new species of Cichlidogyrus (Monogenea: Ancyrocephalidae), gill parasites of Tilapia cabrae (Teleostei: Cichlidae) with discussion on relative length of haptoral sclerites. Folia Parasitologica 50: 195 - 201."]}

Cichlidogyrus sanjeani Pariselle & Euzet, 1997 Cichlidogyrus sanjeani Pariselle & Euzet, 1997: 227, 228, fig. 6. TYPE MATERIAL. — Holotype: MNHN 534 HF Tk56. Paratypes: MNHN 534 HF Tk57, BMNH 1997.1.28.6, MRAC 37.399. TYPE HOST. — Sarotherodon occidentalis (Daget, 1962). TYPE LOCALITY. — La Ramié, Bourouma River, Guinea. SITE. — Gills. ADDITIONAL LOCALITIES. — Kamouri, Batapon River, Guinea and Katonga, Little Scarcies River, Sierra Leone.

Cichlidogyrus levequei Pariselle & Euzet, 1996 Cichlidogyrus levequei Pariselle & Euzet, 1996: 120, 121, figs 12, 13. TYPE MATERIAL. — Holotype: MNHN 482 HF Tg92. Paratypes: MNHN 482 HF Tg93, BMNH 1996.1.5.15, MRAC 37.388. TYPE HOST. — Tilapia coffea Thys van den Audenaerde, 1970. TYPE LOCALITY. — Niambala, Oulé River, Guinea. SITE. — Gills. ADDITIONAL LOCALITY. — Koulé, Guinea.

Cichlidogyrus aegypticus Ergens, 1981 Cichlidogyrus aegypticus Ergens, 1981: 211, fig. 7. TYPE MATERIAL. — Originally deposited at the CAS, with no mention of reference number. Voucher specimen: MNHN 484 HF Tg96 and Tg97 (Pariselle & Euzet 1996). TYPE HOST. — Tilapia zillii (Gervais, 1848). TYPE LOCALITY. — Cairo, Nile River, Egypt. ADDITIONAL HOSTS. — Tilapia guineensis (Bleeker, 1862) (Pariselle & Euzet 1995c), Tilapia dageti Thys van den Audenaerde, 1971, Tilapia louka Thys van den Audenaerde, 1969 and Tilapia walteri Thys van den Audenaerde, 1968 (Pariselle & Euzet 1996). SITE. — Gills. ADDITIONAL LOCALITIES. — Senegal, Guinea, and Congo on T. guineensis (Pariselle & Euzet 1995c); Côte d’Ivoire and Burkina Faso on T. zillii, Côte d’Ivoire on T. dageti; Guinea on T. louka and T. walteri (Pariselle & Euzet 1996). REMARKS Dossou (1982) described this species in Benin, but confused the identification with C. gallus Pariselle & Euzet, 1995 (see below under Cichlidogyrus gallus). The specimens of C. aegypticus from T. louka and T. walteri show a shape of the vagina slightly different from that described on T. zillii, which was not deemed sufficient for Pariselle & Euzet (1996) to create a new species., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 858, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["ERGENS R. 1981. - Nine species of the genus Cichlidogyrus Paperna, 1960 (Monogenea: Ancyrocephalinae) from Egyptian fishes. Folia Parasitologica 28: 205 - 214.","PARISELLE A. & EUZET L. 1996. - Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae): gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species. Systematic Parasitology 34: 109 - 124.","PARISELLE A. & EUZET L. 1995 c. - Gill parasites of the genus Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) from Tilapia guineensis (Bleeker, 1862), with descriptions of six new species. Systematic Parasitology 30: 187 - 198.","DOSSOU C. 1982. - Parasites de poissons d'eau douce du Benin III. Especes nouvelles du genre Cichlidogyrus (Monogenea) parasites de Cichlidae. Bulletin de l'I. F. A. N. 44: 295 - 322."]}

Cichlidogyrus pouyaudi Pariselle & Euzet, 1994 Cichlidogyrus pouyaudi Pariselle & Euzet, 1994: 230-232, fig. 3. TYPE MATERIAL. — Holotype and paratypes: MNHN 214 HF Tk15. Paratypes: BMNH 1993.3.4.3, MRAC 37.335. TYPE HOST. — Tylochromis jentinki (Steindachner, 1895) TYPE LOCALITY. — Ebrié Lagoon, Côte d’Ivoire. SITE. — Gills: ADDITIONAL LOCALITY. — Kogon River, Guinea. REMARKS Pariselle & Euzet (1994) noticed the unusual morphology of the dorsal transverse bar of Cichlidogyrus from Tylochromis (auricles are continuous with convex face instead of attached on this face); pending new morphological or molecular data from these or other parasites of Tylochromis, they left these species in Cichlidogyrus., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 870, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PARISELLE A. & EUZET L. 1994. - Three new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) parasitic on Tylochromis jentinki (Steindachner, 1895) (Pisces, Cichlidae) in West Africa. Systematic Parasitology 29: 229 - 234."]}

Cichlidogyrus levequei Pariselle & Euzet, 1996 Cichlidogyrus levequei Pariselle & Euzet, 1996: 120, 121, figs 12, 13. TYPE MATERIAL. — Holotype: MNHN 482 HF Tg92. Paratypes: MNHN 482 HF Tg93, BMNH 1996.1.5.15, MRAC 37.388. TYPE HOST. — Tilapia coffea Thys van den Audenaerde, 1970. TYPE LOCALITY. — Niambala, Oulé River, Guinea. SITE. — Gills. ADDITIONAL LOCALITY. — Koulé, Guinea., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 868, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PARISELLE A. & EUZET L. 1996. - Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae): gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species. Systematic Parasitology 34: 109 - 124."]}

Cichlidogyrus kothiasi Pariselle & Euzet, 1994 Cichlidogyrus kothiasi Pariselle & Euzet, 1994: 232-234, fig. 4. TYPE MATERIAL. — Holotype and paratypes: MNHN 212 HF Tk13. Paratypes: BMNH 1993.3.4.2, MRAC 37.332 and 37.334. TYPE HOST. — Tylochromis jentinki (Steindachner, 1895). TYPE LOCALITY. — Ebrié Lagoon, Côte d’Ivoire. SITE. — Gills. ADDITIONAL LOCALITY. — Kogon River, Guinea on type host. REMARKS Pariselle & Euzet (1994) noticed the unusual morphology of the dorsal transverse bar of Cichlidogyrus from Tylochromis (auricles are continuous with convex face instead of attached on this face); pending new morphological or molecular data from these or other parasites of Tylochromis, they left these species in Cichlidogyrus.

Genus Enterogyrus Paperna, 1963 TYPE SPECIES. — Enterogyrus cichlidarum Paperna, 1963, by original designation. OTHER SPECIES INCLUDED. — Enterogyrus amieti Bilong Bilong, Euzet & Birgi, 1996; E. barombiensis Bilong Bilong, Birgi & Euzet, 1991; E. coronatus Pariselle, Lambert & Euzet, 1991; E. crassus Bilong Bilong, Birgi & Euzet, 1996; E. foratus Pariselle, Lambert & Euzet, 1991; E. malmbergi Bilong Bilong, 1988; E. melenensis Bilong Bilong, Birgi & Lambert, 1989. DIAGNOSIS. — Ancyrocephalidae. Pear-shaped body enlarged posteriorly; thick tegument transversely striated (except on haptor). Four ocellae, members of anterior pair wider apart and smaller than those of posterior, anterior with or without lenses.Pharynx muscular; short oesophagus followed by two lateral intestinal caeca without diverticula, joined posteriorly. Haptor cup-shaped, opening ventrally or in two parts: one bulbous and one peduncular shaped. Two unequal pairs of anchors. One ventral transverse bar, straight or V-shaped. Fourteen equal uncinuli, each with points orientated ventrally (haptor cup-shaped) or anteriorly (haptor bulbous and peduncular shaped).Testis at level of junction of intestinal caeca.Vas deferens encircling left intestinal caeca, widening to form a seminal vesicle, continuing as narrow duct to base of penis. Sub-median tubular and spirally coiled (clockwise) penis, enlarged at base; accessory piece absent. Ovary median pre-testicular, ovoid, sometimes U-shaped.Vagina not observed. Stomach parasite of Levantine and African cichlid fishes. REMARKS Two species are not considered in this study because they were described from the stomach of Etroplus suratensis (Block, 1790) in Asia. These species (Enterogyrus globodiscus (Kulkarni, 1969) and E. papernai Gussev & Fernando, 1973) are characterised by having two transverse bars (vs. only one for African and Levantine species), according to Paperna (1979) we think that this difference will be sufficient to justify splitting Enterogyrus into two genera., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 851, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PAPERNA I. 1963. - Enterogyrus cichlidarum n. gen. n. sp., a monogenetic Trematode parasitic in the intestine of Fish. The Bulletin of the Research Council of Israel 11 B: 183 - 187.","BILONG BILONG C. F., EUZET L. & BIRGI E. 1996. - Monogenean stomach parasites of cichlid fishes from Cameroon: two new species of the genus Enterogyrus Paperna, 1963 (Ancyrocephalidae). Systematic Parasitology 34: 37 - 42.","BILONG BILONG C. F., BIRGI E. & EUZET L. 1991. - Enterogyrus barombiensis n. sp. (Monogenea, Ancyrocephalidae) parasite stomacal de trois Cichlidae endemiques du lac de cratere Barombi Mbo (Cameroun). Annales de Parasitologie humaine et comparee 66: 105 - 108.","PARISELLE A., LAMBERT A. & EUZET L. 1991. - A new type of haptor in mesoparasitic monogeneans of the genus Enterogyrus Paperna, 1963, with a description of Enterogyrus foratus n. sp. and E. coronatus n. sp., stomach parasites of Cichlids in West Africa. Systematic Parasitology 20: 211 - 220.","BILONG BILONG C. F. 1988. - Enterogyrus malmbergi n. sp. (Monogenea-Ancyrocephalidae) parasite de l'estomac du Cichlidae Tilapia nilotica Linne, 1757 au Sud-Cameroun. Annales de la Faculte des Sciences de Yaounde, Biologie-Biochimie 5: 51 - 58.","BILONG BILONG C. F., BIRGI E. & LAMBERT A. 1989. - Enterogyrus melenensis n. sp. (Monogenea, Ancyrocephalidae), parasite stomacal de Hemichromis fasciatus Peters, 1857 (Teleosteen, Cichlidae) du Sud-Cameroun. Revue de Zoologie africaine - Journal of African Zoology 103: 99 - 105.","GUSSEV A. V. & FERNANDO C. H. 1973. - Dactylogyridae (Monogenoidea) from stomach of Fishes. Folia Parasitologica (Praha) 20: 207 - 212.","PAPERNA I. 1979. - Monogenea of inland water fish in Africa. Annales du Musee royal d'Afrique centrale, ser in- 8 ° (Zool.) 226: 1 - 131."]}

Onchobdella silverai Pariselle & Euzet, 1995 Onchobdella silverai Pariselle & Euzet, 1995a: 206-208, fig. 5. TYPE MATERIAL. — Holotype: MNHN 468 HF Tg 67. Paratypes: MNHN 467 HF Tg 66; BMNH 1994 5.5.3; MRAC 37.365 B and 37.366 A. TYPE HOST. — Pelmatochromis buettikoferi (Steindachner, 1894). TYPE LOCALITY. — Koleya, Konkouré River, Guinea. SITE. — Gills., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 855, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PARISELLE A. & EUZET L. 1995 a. - Trois Monogenes nouveaux parasites branchiaux de Pelmatochromis buettikoferi (Steindachner, 1895) (Cichlidae) en Guinee. Parasite 2: 203 - 209."]}

Genus Cichlidogyrus Paperna, 1960 TYPE SPECIES. — Cichlidogyrus arthracanthus Paperna, 1960, by original designation. OTHER SPECIES INCLUDED. — Cichlidogyrus acerbus Dossou, 1982; C. aegypticus Ergens, 1981; C. agnesi Pariselle & Euzet, 1994; C. albareti Pariselle & Euzet, 1998; C. amieti Birgi & Euzet, 1983; C. amphoratus Pariselle & Euzet, 1995; C. anthemocolpos Dossou, 1982; C. arfii Pariselle & Euzet, 1995; C. berradae Pariselle & Euzet, 2003; C. berrebii Pariselle & Euzet, 1994; C. bifurcatus Paperna, 1960; C. bilongi Pariselle & Euzet, 1996; C. bonhommei Pariselle & Euzet, 1998; C. bouvii Pariselle & Euzet, 1997; C. bychowskii (Markevich, 1934); C. cirratus Paperna, 1964; C. cubitus Dossou, 1982; C. dageti Dossou & Birgi, 1984; C. digitatus Dossou, 1982; C. dionchus Paperna, 1968; C. dossoui Douëllou, 1993; C. douellouae Pariselle, Bilong Bilong & Euzet, 2003; C. ergensi Dossou, 1982; C. euzeti Dossou & Birgi, 1984; C. falcifer Dossou & Birgi, 1984; C. flexicolpos Pariselle & Euzet, 1995; C. fontanai Pariselle & Euzet, 1997; C. gallus Pariselle & Euzet, 1995; C. giostrai Pariselle, Bilong Bilong & Euzet, 2003; C. guirali Pariselle & Euzet, 1997; C. halinus Paperna, 1969; C. halli (Price & Kirk, 1967); C. haplochromii Paperna & Thurston, 1969; C. hemi Pariselle & Euzet, 1998; C. inconsultans Birgi & Lambert, 1986; C. karibae Douëllou, 1993; C. kothiasi Pariselle & Euzet, 1994; C. kouassii N’Douba, Thys van den Audenaerde & Pariselle, 1997; C. lagoonaris Paperna, 1969; C. legendrei Pariselle & Euzet, 2003; C. lemoallei Pariselle & Euzet, 2003; C. levequei Pariselle & Euzet, 1996; C. longicirrus Paperna, 1965; C. longipenis Paperna & Thurston, 1969; C. louipaysani Pariselle & Euzet, 1994; C. microscutus Pariselle & Euzet, 1996; C. nandidae Birgi & Lambert, 1986; C. njinei Pariselle, Bilong Bilong & Euzet, 2003; C. nuniezi Pariselle & Euzet, 1998; C. ornatus Pariselle & Euzet, 1995; C. ouedraogoi Pariselle & Euzet, 1996; C. paganoi Pariselle & Euzet, 1997; C. papernastrema Price, Peebles & Bamford, 1969; C. philander Douëllou, 1993; C. pouyaudi Pariselle & Euzet, 1994; C. quaestio Douëllou, 1993; C. reversati Pariselle & Euzet, 2003; C. rognoni Pariselle, Bilong Bilong & Euzet, 2003; C. sanjeani Pariselle & Euzet, 1997; C. sanseoi Pariselle & Euzet, 2004; C. sclerosus Paperna & Thurston, 1969; C. slembroucki Pariselle & Euzet, 1998; C. testificatus Dossou, 1982; C. teugelsi Pariselle & Euzet, 2004; C. thurstonae Ergens, 1981; C. tiberianus Paperna, 1960; C. tilapiae Paperna, 1960; C. vexus Pariselle & Euzet, 1995; C. yanni Pariselle & Euzet, 1996; C. zambezensis Douëllou, 1993. DIAGNOSIS (according to Pariselle & Euzet [1997]). — Ancyrocephalidae. Three pairs of cephalic glands. Two posterior ocellae with crystalline lenses. Two small inconsistent anterior ocellae. Intestinal caeca unbranched, joined posteriorly. Two pairs of anchors, one dorsal and one ventral.Two transverse bars, dorsal with two auricles, ventral V-shaped. Fourteen uncinuli. Median posterior testis. Vas deferens on right side, not encircling intestinal caecum. Seminal vesicle present. One prostatic reservoir. Male copulatory complex with penis and accessory piece. Median pre-testicular ovary. Sub-median vaginal dextral opening. Vagina sclerotised or not. Seminal receptacle present. Gill parasites of African Cichlidae, Nandidae and Cyprinodontidae., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 857, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PAPERNA I. 1960. - Studies on MonogeneticTrematodes in Israel. 2 Monogenetic Trematodes of Cichlids. Bamidgeh, Bulletin of Fish Culture in Israel 12: 20 - 33.","DOSSOU C. 1982. - Parasites de poissons d'eau douce du Benin III. Especes nouvelles du genre Cichlidogyrus (Monogenea) parasites de Cichlidae. Bulletin de l'I. F. A. N. 44: 295 - 322.","ERGENS R. 1981. - Nine species of the genus Cichlidogyrus Paperna, 1960 (Monogenea: Ancyrocephalinae) from Egyptian fishes. Folia Parasitologica 28: 205 - 214.","PARISELLE A. & EUZET L. 1994. - Three new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) parasitic on Tylochromis jentinki (Steindachner, 1895) (Pisces, Cichlidae) in West Africa. Systematic Parasitology 29: 229 - 234.","PARISELLE A. & EUZET L. 1998. - Five new species Cichlidogyrus Paperna, 1960 (Monogenea: Ancyrocephalidae) from Tilapia brevimanus, T. buttikoferi and T. cessiana from Guinea, Cote d'Ivoire and Sierra Leone (West Africa). Folia Parasitologica 45: 275 - 282.","BIRGI E. & EUZET L. 1983. - Monogenes parasites des poissons des eaux douces du Cameroun. Presence des genre Cichlidogyrus et Dactylogyrus chez Aphyosemion (Cyprinodontidae). Bulletin de la Societe zoologique de France 108: 101 - 106.","PARISELLE A. & EUZET L. 2003. - Four new species of Cichlidogyrus (Monogenea: Ancyrocephalidae), gill parasites of Tilapia cabrae (Teleostei: Cichlidae) with discussion on relative length of haptoral sclerites. Folia Parasitologica 50: 195 - 201.","PARISELLE A. & EUZET L. 1996. - Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae): gill parasites from West African Cichlidae of the subgenus Coptodon Regan, 1920 (Pisces), with descriptions of six new species. Systematic Parasitology 34: 109 - 124.","PARISELLE A. & EUZET L. 1997. - New species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) from the gills of Sarotherodon occidentalis (Daget) (Osteichthyes, Cichlidae) in Guinea and Sierra Leone (West Africa). Systematic Parasitology 38: 221 - 230.","MARKEVICH A. P. 1934. - [Parasitic diseases of fish and their control]. Publ. Koiz., Leningrad, 100 p. (in Russian).","PAPERNA I. 1964. - Parasitic helminths of inland-water fishes in Israel. Israel Journal of Zoology 13: 1 - 26.","DOSSOU C. & BIRGI E. 1984. - Monogenes parasites d' Hemichromis fasciatus Peters, 1857 (Teleostei, Cichlidae). Annales des Sciences naturelles, Zoologie 6: 101 - 109.","PAPERNA I. 1968. - Monogenetic Trematodes collected from fresh water fish in Ghana. Second report. Bamidgeh, Bulletin of Fish Culture in Israel 20: 80 - 100.","DOUELLOU L. 1993. - Monogeneans of the genus Cichlidogyrus Paperna, 1960 (Dactylogyridae: Ancyrocephalinae) from cichlid fishes of Lake Kariba (Zimbabwe) with descriptions of five new species. Systematic Parasitology 25: 159 - 186.","PARISELLE A., BILONG BILONG C. F. & EUZET L. 2003. - Four new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) all gill parasites from African mouthbreeder tilapias of the genera Sarotherodon and Oreochromis (Pisces, Cichlidae), with a re-description of C. thurstonae Ergens, 1981. Systematic Parasitology 56: 201 - 210.","PRICE C. E. & KIRK R. G. 1967. - First description of a monogenetic trematode from Malawi. Revue de Zoologie et de Botanique africaines 76: 137 - 144.","PAPERNA I. & THURSTON J. P. 1969. - Monogenetic Trematodes collected from cichlid fish in Uganda; including the description of five new species of Cichlidogyrus. Revue de Zoologie et de Botanique africaines 79: 15 - 33.","BIRGI E. & LAMBERT A. 1986. - Presence chez un Nandidae (Teleosteen), Polycentropsis abbreviata Boulenger, 1901, du genre Cichlidogyrus (Monogenea, Monopisthocotylea, Ancyrocephalidae). Description de Cichlidogyrus nandidae n. sp. Annales de Parasitologie humaine et comparee 61: 521 - 528.","N'DOUBA V., THYS VAN DEN AUDENAERDE D. F. E. & PARISELLE A. 1997. - Description d'une espece nouvelle de Monogene ectoparasite branchial de Tilapia guineensis (Bleeker, 1862) (Cichlidae) en Cote d'Ivoire. Journal of African Zoology 111: 429 - 433.","PAPERNA I. 1965. - Monogenetic Trematodes collected from fresh water fish in southern Ghana. Bamidgeh, Bulletin of Fish Culture in Israel 17: 107 - 115.","PRICE C. E., PEEBLES H. E. & BAMFORD T. 1969. - The Monogenean parasites of African fishes. IV. Two new species from South African hosts. Revue de Zoologie et de Botanique africaines LXXIX: 117 - 124.","PARISELLE A. & EUZET L. 2004. - Two new species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) gill parasites on Hemichromis fasciatus (Pisces, Cichlidae) in Africa, with remarks on geographical distribution. Parasite 11: 359 - 364."]}

Cichlidogyrus bychowskii (Markevich, 1934) Ancyrocephalus bychowskii Markevich, 1934. Cichlidogyrus bychowskii – Paperna 1960: 14. TYPE MATERIAL. — No type material mentioned in the original description. TYPE HOST. — Hemichromis bimaculatus Gill, 1862. TYPE LOCALITY. — From a fish reared in the Leningrad aquarium. ADDITIONAL HOSTS. — Hemichromis fasciatus Peters, 1857 and Sarotherodon galilaeus (Linnaeus, 1758) [Paperna 1968, 1969]. SITE. — Gills. ADDITIONAL LOCALITIES. — Ghana on type host (Paperna 1965); Ghana on type host, Hemichromis fasciatus Peters, 1857 and Sarotherodon galilaeus (Linnaeus, 1758) (Paperna 1968, 1969)., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 861, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["MARKEVICH A. P. 1934. - [Parasitic diseases of fish and their control]. Publ. Koiz., Leningrad, 100 p. (in Russian).","PAPERNA I. 1960. - Studies on MonogeneticTrematodes in Israel. 2 Monogenetic Trematodes of Cichlids. Bamidgeh, Bulletin of Fish Culture in Israel 12: 20 - 33.","PAPERNA I. 1968. - Monogenetic Trematodes collected from fresh water fish in Ghana. Second report. Bamidgeh, Bulletin of Fish Culture in Israel 20: 80 - 100.","PAPERNA I. 1965. - Monogenetic Trematodes collected from fresh water fish in southern Ghana. Bamidgeh, Bulletin of Fish Culture in Israel 17: 107 - 115."]}

Cichlidogyrus fontanai Pariselle & Euzet, 1997 Cichlidogyrus fontanai Pariselle & Euzet, 1997: 223, 224, fig. 3. TYPE MATERIAL. — Holotype: MNHN 532 HF Tk53. Paratypes: MNHN 532 HF Tk 53, BMNH 1997.1.28.3, MRAC 37.396. TYPE HOST. — Sarotherodon occidentalis (Daget, 1962). TYPE LOCALITY. — La Ramié, Bourouma River, Guinea. SITE. — Gills. ADDITIONAL LOCALITY. — Kamouri, Batapon River, Guinea on type host., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 864, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PARISELLE A. & EUZET L. 1997. - New species of Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) from the gills of Sarotherodon occidentalis (Daget) (Osteichthyes, Cichlidae) in Guinea and Sierra Leone (West Africa). Systematic Parasitology 38: 221 - 230."]}

Scutogyrus gravivaginus (Paperna & Thurston, 1969) Cichlidogyrus longicornis gravivaginus Paperna & Thurston, 1969: 20-23, fig. 3c, e-g. Cichlidogyrus gravivaginus – Douëllou 1993: 172, 173, fig. 73. Scutogyrus gravivaginus – Pariselle & Euzet 1995b: 163- 165, figs 6, 7. TYPE MATERIAL. — Holotype: MRAC M.T. 35.932 (Paperna 1979). Paratypes: private collection of Paperna. OTHER MATERIAL. — MNHN 129 HF (Douëllou 1993). TYPE HOST. — Oreochromis leucostictus (Trewavas, 1933). TYPE LOCALITY. — Jinja and Albert Lake, Uganda. ADDITIONAL HOSTS. — Oreochromis variabilis (Boulenger, 1906) (Paperna 1979); Oreochromis mortimeri (Trewavas, 1966) (Douëllou 1993). SITE. — Gills. ADDITIONAL LOCALITY. — Kariba Lake, Zimbabwe on Oreochromis mortimeri (Trewavas, 1966) (Douëllou 1993). REMARKS Dossou (1982) suggested that C.longicornis gravivaginus could be raised to species level, this was done by Douëllou (1993)., Published as part of Pariselle, Antoine & Euzet, Louis, 2009, Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar, pp. 849-898 in Zoosystema 31 (4) on page 856, DOI: 10.5252/z2009n4a6, http://zenodo.org/record/4520413, {"references":["PAPERNA I. & THURSTON J. P. 1969. - Monogenetic Trematodes collected from cichlid fish in Uganda; including the description of five new species of Cichlidogyrus. Revue de Zoologie et de Botanique africaines 79: 15 - 33.","DOUELLOU L. 1993. - Monogeneans of the genus Cichlidogyrus Paperna, 1960 (Dactylogyridae: Ancyrocephalinae) from cichlid fishes of Lake Kariba (Zimbabwe) with descriptions of five new species. Systematic Parasitology 25: 159 - 186.","PARISELLE A. & EUZET L. 1995 b. - Scutogyrus n. g. (Monogenea, Ancyrocephalidae) for Cichlidogyrus longicornis minus Dossou, 1982, C. longicornis and C. l. gravivaginus Paperna and Thurston, 1969, with descriptions of three new species parasitic on African Cichlids. Journal of the Helminthological Society of Washington 62: 157 - 173.","PAPERNA I. 1979. - Monogenea of inland water fish in Africa. Annales du Musee royal d'Afrique centrale, ser in- 8 ° (Zool.) 226: 1 - 131.","DOSSOU C. 1982. - Parasites de poissons d'eau douce du Benin III. Especes nouvelles du genre Cichlidogyrus (Monogenea) parasites de Cichlidae. Bulletin de l'I. F. A. N. 44: 295 - 322."]}