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oblongus, Axinus [Mendicula oblonga (Monterosato, 1880)] (Figures 37I, J) 1875b: 14 [XIII: 240]—nomen nudum 1875c: 9 [XIV: 285]—nomen nudum 1877c: 31 [XVII: 329]—nomen nudum 1878c: 69 [XIX: 383]—nomen nudum 1880c: 58 [XXVII: 542]—available name Type material. MCZR –M–14654 —1 disarticulated sh / 15 v // 46 v + 12 sh “P” on the cork; Label on the bottom “ A. oblongus, Monts =? K. transversa, Forb. Pal!”// 7 v “Fic.” Type locality. Described from Ficarazzi † and off Palermo (Sicily). Remarks. Recorded by MolluscaBase (2018) as Mendicula oblonga (Monterosato, 1880)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 83, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family NUCULIDAE † apicina, Nucula [Nucula apicina Monterosato, 1891] taxon inquirendum (Figures 34E, F) 1891a: 97 [XXXIX a: 929]—available name Type material. MCZR–M–30040 — 2 v dx “ Nucula apicina Monts S. Flavia ” Type locality. Described from S. Flavia † and Altavilla † (Sicily). Remarks. Monterosato (1891a: 97) explicitly reported a single specimen (a single valve?) from the Quaternary outcrop of Santa Flavia, near Altavilla Milicia (Palermo). At the end of the description he wrote that the species was also known from Altavilla Milicia. Recorded by MolluscaBase (2018) as taxon inquirendum. However, La Perna (2007), after examination of the Monterosato material and additional material from the outcrop of Monti della Farnesina in Rome (Cerulli-Irelli coll., Palaeontological Museum of Sapienza University of Rome), regarded Nucula apicina as a full valid Plio-Pleistocene species, an interpretation that we share., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 76, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["La Perna, R. (2007) Revision of the Nuculidae (Bivalvia: Protobranchia) from the Cerulli-Irelli collection (Pleistocene, Mediterranean). Palaeontographia italica, 91, 109 - 140."]}

producta, Fissurella [Diodora producta (Monterosato, 1880)] (Figures 1N, O) 1880b: 216 [XXVI: 514]—available name Type material. MCZR –M–11965/L —1 sh (Lectotype) “ F. producta Monts Spugne di Barberia ” MCZR –M–11965/P —3 sh (Paralectotypes) “ F. producta Monts spugne di Barberia ”. Type locality. Coasts of Barberia (Tunisia). Remarks. Subsequently figured (Monterosato, 1917: pl. I, figs. 6, 7). Now assigned to the genus Diodora J.E. Gray, 1821. A lectotype of this characteristic species was designated from the Monterosato collection and figured by Buzzurro & Russo (2004: 6, figs 19–21), who discussed the identity of several Mediterranean Diodora species. Recorded by MolluscaBase (2018) as Diodora producta (Monterosato, 1880)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on pages 22-23, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Buzzurro, G. & Russo, P. (2004) Notes and comments on the Mediterranean species of the genus Diodora Gray, 1821 (Archeogastropoda, Fissurellidae) with a description of a new species. Triton, 10, 1 - 9."]}

Family PTERIIDAE savignyi, Maleagrina (misspelling for Meleagrina) [Pinctada imbricata radiata (Leach, 1814)] (Figures 36I, J) 1884h: 7 [XXXI: 663]—available name Type material. MCZR –M–13835 — 2 v sn “ Meleagrina! Alessandria Mr. Juba de Lhotellerie”// 1 v sn + 1 v dx “ Meleagrina Savignyi M. Alessandria (Gaudion) ”, “ Meleagrina Alessandria. M. Savignyi Monts con l’animale assieme all’ Ostrea subimbricata Monts. ms. (Cap. Gaudion) avuta anche da Lothellerie e da Conemenos”. Type locality. Described from Alexandria (Egypt). Remarks. The first introduction of the name (Monterosato, 1884h: 7) was by a reference to a drawing in the plates of Egyptian molluscs by J.-C. Savigny. It is arguably the oldest record of this Indo–Pacific alien species in the Mediterranean Sea. It has been suggested that it had inhabited the waters of Alexandria harbour before the opening of the Suez Canal (Ghisotti, 1974: 7), although different hypotheses were proposed for its introduction in the Mediterranean (e.g. Por, 1978: 30, 31, 34). The exceptional proliferation of this mollusc brought Monterosato to reject the Indo–Pacific origin for this species, its abundance in the Gulf of Gabès allegedly proving it as a native undescribed species (see Monterosato, 1900: 393), but this is not tenable. It is currently included in Pinctada imbricata Röding, 1798, which is probably a complex of species. Recorded by MolluscaBase (2018) as a synonym of Pinctada imbricata radiata (Leach, 1814).

floribunda, Pycnodonta [Neopycnodonte cochlear (Poli, 1795)] (Figures 35K, L) 1915: 7, pl. III, figs 1–4 [LXV: 1 257, 1267, figs 1–4]—available name Type material. MCZR –M–5520 —1 sh “ P. floribunda M. var. digitata, affine al tipo da figurare”// 1 + 2 + 3 sh “ Pycnodonta floribunda Monts Palermo!” “ Ostrea (Pycnodonta) cochlear, Poli Palermo ”// 3 sh + 5 v “ P. floribunda Monts tra Palermo e Ustica da 50 a 60 m. si potrà figurare anche impicciolita”// 3 v “ Pycnodonta floribunda, Monts Palermo!”// 7 v “ Ostrea (Pycnodonta) floribunda Monts Palermo !!” Type locality. Described from off Palermo (Sicily). Remarks. Recorded by MolluscaBase (2018) as a synonym of Neopycnodonte cochlear (Poli, 1795). † frigida, Pycnodonta [Pycnodonta frigida Monterosato, 1915] (Figures 35M, N) 1915: 12, pl. IV, fig. 2 [LXV: 1256, 1268A, fig. 2]—available name Type material. MCZR–M–5588 —2 sh “ P. frigida Monts. Ficarazzi sarebbe bene figurare in modo che si veda il tallone”. Type locality. Described from Ficarazzi † (Sicily). Remarks. We cannot decide whether it is a distinct fossil species or it belongs in the variation of Neopycnodonte cochlear (Poli, 1795)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 79, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

lignaria, Mactra [Mactra stultorum (Linnaeus, 1758)] (Figures 37C, D) 1878c: 73 [XIX: 387]—as M. corallina var. lignaria , nomen nudum 1917: 8 [LXVII: 1282]—available name Type material. MCZR –M–19665 —1 sh “ M. lignaria Monts typ. Napoli!”// 3 sh “juv. Napoli” MCZR –M–19647 —7 sh + 1v dx + 1 frg “iuvenis M. lignaria var. alba Napoli ” MCZR–M–19670 —14 sh + 4 v sx “ M. lignaria, M. coll. Tiberi come M. stultorum Napoli ”// 1 sh “Napoli Staz. Zool.” Type locality. Described from Gulf of Napoli (Italy). Remarks. Recorded by MolluscaBase (2018) as a synonym of Mactra stultorum (Linnaeus, 1758)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 82, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

laticardo, Pycnodonta [Neopycnodonte cochlear (Poli, 1795)] (Figures 35O, P) 1915: 13, pl. IV, figs 3–5 [LXV: 1257, 1268A, figs 3–5]—available name Type material. MCZR–M–5530 —2 sh + 25 v “ O. cochlear. vr. Laticardo Monts. Mare presso Palermo profondità da 50 a 100 m. Comprata all’ Arenella in xxxxx 1901”. MCZR–M–5562 — 1 v “ Pycnodonta laticardo, Monts fondi tra Palermo ed Ustica da figurare” recto “Se ne potrà figurare una quella che risponde meglio alla descrizione” verso. Type locality. Described from Palermo (Sicily). Remarks. Recorded by MolluscaBase (2018) as a synonym of Neopycnodonte cochlear (Poli, 1795)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 80, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

corbuloides, Arca [Anadara corbuloides (Monterosato, 1881)] (Figures 34I, J) 1878c: 67 [XIX: 381]—nomen nudum 1881a: 247 [XXVIII: 572]—available name Type material. MCZR–M–14178 —1 sh “ A. corbuloides Monts Grande esemplare di Civitavecchia (Donati)”// 1 sh “A. corboloides Monts d’Algeria! coll. Tiberi……” Type locality. Described from Palermo (Sicily), Civitavecchia (Italy), Algeria, and southern Spain. Remarks. Monterosato proposed the name for his Arca polii var. “ grandis ” Monterosato (1875a: 12), regarded as distinct from Arca polii Mayer, 1868. The varietal name “ grandis ” is a nomen nudum, and the binomen Arca corbuloides must be adopted. The syntypes found in the Monterosato collection originated from the Donati and Tiberi collections. They match very well part of the material reported in the original description. Recorded by MolluscaBase (2018) as Anadara corbuloides (Monterosato, 1878)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 77, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family THYASIRIDAE granulosus, Axinus [Thyasira granulosa (Monterosato, 1874 ex Jeffreys ms.)] (Figures 37E, F) 1872b: 21 [VI: 103]—nomen nudum 1874a: 251 [X: 177]—available name Type material. MCZR –M–19237 — 31 v “ Axinus rotundatus Monts S.Vito” (ms. Brugnone) // 4 sh + 3 v “Ax. Granulosus Jeffr. San Vito” (ms. Brugnone)// 80 v “ Axinus granulosus Monterosato 1874 S. Vito (Trapani) ” MCZR –M–19247 — 4 v + 5 v Label on the bottom “ Axinus granulosus Jeffr. non flexuosus Mtg. Napoli” Tiberi’s handwriting // 2 v “San Vito” MCZR–M–19245 — 8 v “S. Vito” Type locality. Described from San Vito lo Capo (Sicily), and Napoli (Italy). Remarks. Recorded by MolluscaBase (2018) as Thyasira granulosa (Monterosato, 1874)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on pages 82-83, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

fabuloides, Fabulina [Fabulina fabula (Gmelin, 1791)] (Figures 38J, K) 1884h: 21 [XXXI: 677]—available name Type material. MCZR –M–20217 —1 sh “Pesaro d. F. L. Appelius”// 2 v “ Corsica Neville”// 3 sh “ Corsica Neville”// 1 v “Alessandria (Lothellerie)”// 22 sh “Porto Maurizio Sulliotti”// 4 sh + 1 v “Livorno F.lli Caifassi”// 6 sh + 1 v “Chioggia” Label on the box bottom “Tell. Fabuloides Monts. Conch. Med. 1884 vide Locard in Coq. Mar. france p. 275” Type locality. Described from Mediterranean Sea. Remarks. Name proposed to distinguish the Mediterranean form of Tellina fabula Gmelin, 1791 (as “ T. fabula Gronovius 1791 ”, non binomial) considered to be different from the Atlantic species. Recorded by MolluscaBase (2018) as a synonym of Fabulina fabula (Gmelin, 1791). commutata, Macoma [Macomangulus tenuis (da Costa, 1778)] (Figures 38L, M) 1884h: 23[XXXI: 679]—available name Type material. MNHNS–50377 — Tellina tenuis var. angusta Philippi, 1836 —5 syntypes + 19 v (Coan & Kabat, 2017: 84) Historical material. MCZR –M–30044— 2 sh “C. di Prov. Roussillon Dautzenberg”// 2 v “Adr. Pegorari”// 1 sh “Civitavecchia (Donati)”. Label on the box bottom: “Tell. commutata Monts. = tenuis var. augusta Ph. = T. hyaline Desh.—Exp. Moree 1832, p. 93, t. 18, f. 12—14. Non T. hyalina, Gm. esot.” Type locality. Described from Sicily (Philippi, 1836). Remarks. Nomen novum pro Tellina tenuis var. angusta Philippi, 1836 (raised to species rank), because of the synonymy with Tellina angusta Gmelin, 1791. The next available synonym, Tellina hyalina Deshayes, 1832 is also preoccupied by T. hyalina Gmelin, 1791. Recorded by MolluscaBase (2018) as a synonym of Macomangulus tenuis (da Costa, 1778)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 85, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Philippi, R. A. (1836) Enumeratio molluscorum Siciliae cum viventium tum in tellure tertiaria fossilium, quae in itinere suo observavit. Vol. 1. Schropp, Berlin [Berolini], xiv + 267 pp., XII pls. https: // doi. org / 10.5962 / bhl. title. 100735","Coan E. V. & Kabat A. R. (2017) The malacological contributions of Rudolph Amandus Philippi (1808 - 1904). Malacologia, 60 (1 ‾ 2), 31 ‾ 322."]}

Family CARDIIDAE duregnei, Cardium (ex de Boury ms.) [Acanthocardia echinata (Linnaeus, 1758)] (Figures 37K, L) 1891c: 2 [XL: 946]—available name Type material. MCZR –M–14815 —1 sh “ C. duregnei BDD = bullatum no (LK) Arcachon (Duregne)” MCZR –M–14742 —4 sh + 1v dx not conspecific “ C. duregnei (De Boury) Monts in Bull. Soc. Sc. Nat ed Econ. Genn. 1891. Arcachon (Duregn, De Boury. Non medit.”. Type locality. Described from Monte Pellegrino † (Sicily) and Arcachon (France). Remarks. La Perna (2008b: 136, figs 1A–E) figured two syntypes (1 sh and 1 valve) of Cardium duregnei from the Monterosato collection. He quoted the lot number “ MZR 14815 ” for both specimens, yet the single valve was arguably from MCZR –M–14742. According to La Perna (2008b), Cardium duregnei is a lagoon ecophenotype of Acanthocardia echinata (Linnaeus, 1758), a position that we share. Recorded by MolluscaBase (2018) as a synonym of Acanthocardia echinata (Linnaeus, 1758). † propexum, Cardium [Acanthocardia lunulata (G. Seguenza, 1880)] (Figures 37M, N) 1891c: 2 [XL: 946]–available name Type material. MCZR–M–14744 — 4 v “ C. propexum, Monts in, Boll. Sc. Nat. ed Ec. 1892 p. 2 Ficarazzi. Non est C. brocchi Mager”, “Non est C. brocchii Mager in Jour. Conchyl. 1866, p. 67, t. II, f. 4” Type locality. Described from Monte Pellegrino †and Ficarazzi † (Sicily) and Kattegat. Remarks. The identity of Cardium propexum and its synonymy with Acanthocardia lunulata (G. Seguenza, 1880) —a valid Mediterranean Pleistocene species—are discussed in La Perna & D’Abramo (2009), who examined the type material and noticed that three species are involved. Only two valves (La Perna & D’Abramo 2009: 679, figs 6A–B; herein Fig. 37M) fit the original description of C. propexum. These valves seem also conspecific with a syntype given by Monterosato to Coen (1941: 169–170, pl. 1 fig. 11), and belong to A. lunulata, a synonymy that we share. The two other valves were identified by La Perna & D’Abramo (2009) as Acanthocardia deshayesii (Payraudeau, 1826) and A. echinata (Linnaeus, 1758), respectively. Recorded by MolluscaBase (2018) as a synonym of Acanthocardia deshayesii (Payraudeau, 1826), it should rather be Acanthocardia lunulata (G. Seguenza, 1880)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on pages 83-84, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["La Perna, R. (2008 b) Observations on Cardium duregnei Monterosato, 1891 ex de Boury ms and C. gibbum Locard, 1892 (Bivalvia, Cardiidae). Bollettino Malacologico, 44 (9 - 12), 135 - 140.","Coen, G. (1941) Appunti di malacologia mediterranea sulle specie del genere Acanthocardium. Acta Pontificia Academia Scientiarum, 5 (19), 167 - 172, 1 pl.","Payraudeau, B. C. (1826) Catalogue descriptif et methodique des Annelides et des Mollusques de l'ile de Corse. Imprimerie J. Tastu, Paris, 218 pp., 8 pls."]}

galloprovincialis, Mactra [Mactra stultorum (Linnaeus, 1758)] (Figures 37A, B) 1917: 28 [LXVII: 1302]—available name Type material. MCZR –M–19693 —2 sh “ M. galloprovincialis Monts di Port—Vendres ”// 1 sh “Collieours” MCZR –M–19684 — 2 v sx “La Nouvelle 1911” Type locality. Described from Collioure, Port-Vendres, La Nouvelle (France). Remarks. Recorded by MolluscaBase (2018) as taxon inquirendum. The type material conforms to Mactra stultorum (Linnaeus, 1758) [new synonymy]., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 82, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family THYASIRIDAE granulosus, Axinus [Thyasira granulosa (Monterosato, 1874 ex Jeffreys ms.)] (Figures 37E, F) 1872b: 21 [VI: 103]—nomen nudum 1874a: 251 [X: 177]—available name Type material. MCZR –M–19237 — 31 v “ Axinus rotundatus Monts S.Vito” (ms. Brugnone) // 4 sh + 3 v “Ax. Granulosus Jeffr. San Vito” (ms. Brugnone)// 80 v “ Axinus granulosus Monterosato 1874 S. Vito (Trapani) ” MCZR –M–19247 — 4 v + 5 v Label on the bottom “ Axinus granulosus Jeffr. non flexuosus Mtg. Napoli” Tiberi’s handwriting // 2 v “San Vito” MCZR–M–19245 — 8 v “S. Vito” Type locality. Described from San Vito lo Capo (Sicily), and Napoli (Italy). Remarks. Recorded by MolluscaBase (2018) as Thyasira granulosa (Monterosato, 1874).

clodiensis, Serrula [Donax semistriatus Poli, 1795] (Figures 38A, B) 1884h: 26 [XXXI: 682]—available name Type material. MCZR –M–19390 —1 sh “ D. clodiensis di Chioggia esemplare figurato (f. 4) D. Pegorari” MCZR –M–19339— 1 sh “ Serrula clodiense var. candita Coen ” Type locality. Described from Chioggia (Italy). Remarks. Subsequently figured (1889a, pl II, figs 4, 4a). Recorded by MolluscaBase (2018) as a synonym of Donax semistriatus Poli, 1795., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 84, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family MYTILIDAE arenaria, Crenella [Crenella arenaria Monterosato, 1875 ex H. Martin, ms.] (Figures 34K, L) 1872b: 19 [VI: 101]—nomen nudum 1874a: 249 [X: 175]—nomen nudum 1875b: 10 [XIII: 236]—nomen nudum 1875c: 7 [XIV: 283]—available name Type material. MCZR–M–14017 —21 sh + 23 v + 15 frg “ Crenella? arenaria Sciacca!” Type locality. Described from Sciacca (Sicily). Remarks. The species was described—very briefly indeed—in a paper on the shells collected from coralligenous bottoms off Sciacca (Sicily), thus the provenance of the material found in the Monterosato collection fits the Type locality.. The actual systematic position of the species is problematic and needs further investigation. Recorded by MolluscaBase (2018) as Crenella arenaria Monterosato, 1875 ex H. Martin, ms.

SUPERFAMILY NUCULANOIDEA Family YOLDIIDAE

apicina, Sabanea [Pusillina inconspicua (Alder, 1844)] (Figures 13G, H) 1890a: 146 [XXXVIIIa: 900]—available name Type material. MCZR–M–22011 —19 + 2 sh “ S. apicina nov. sp. Monts ms. Funnazzi 1886” “Pal. 1886”// 7 sh “Palermo a gran prodondità”. Label in the box bottom “ S. apicina Monts ms. Conch. prof. Pal. 1889 p.4” Type locality. Described from Palermo (Sicily). Remarks. Recorded by MolluscaBase (2018) as taxon inquirendum. The type material belongs to Pusillina inconspicua (Alder, 1844) [new synonymy]., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 42, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family GALEOMMATIDAE lepisma, Lepton [Vasconiella jeffreysiana (P. Fischer in de Folin & Périer, 1873)] (Figures 36M, N) 1878b: 314 [XXI: 454]—available name Type material. USNM – 170652 — 1 v sn “ Lepton lepisma Montr. = Scacchia crispata Folin (Algiers, Joly)” (van Aartsen, 1982: 125). MCZR –M–14683 — 3 v dx “ Lepton lepisma Monts. n.sp. Alger (Joly)!” + original label by Joly, “ Lepton lepisma Mont Alger valve”. Type locality. Described from Algeria. Remarks. Recorded by MolluscaBase (2018) as a synonym of Vasconiella jeffreysiana (P. Fischer in de Folin & Périer, 1873) based on van Aartsen (1982). Monterosato explicitly based the description on a single valve, whereas in the collection the lot (original from Joly as stated in the original description) includes three valves. Additionally, another possible syntype, also originating from Joly, is in the Jeffreys collection (USNM), as reported by van Aartsen (1982)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 82, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["van Aartsen, J. J. (1982) European marine Mollusca: notes on less well-known species. IV. Vasconiella jeffreysiana (P. Fischer, 1873). Basteria, 46 (5 - 6), 125 - 126."]}

Family PTERIIDAE savignyi, Maleagrina (misspelling for Meleagrina) [Pinctada imbricata radiata (Leach, 1814)] (Figures 36I, J) 1884h: 7 [XXXI: 663]—available name Type material. MCZR –M–13835 — 2 v sn “ Meleagrina! Alessandria Mr. Juba de Lhotellerie”// 1 v sn + 1 v dx “ Meleagrina Savignyi M. Alessandria (Gaudion) ”, “ Meleagrina Alessandria. M. Savignyi Monts con l’animale assieme all’ Ostrea subimbricata Monts. ms. (Cap. Gaudion) avuta anche da Lothellerie e da Conemenos”. Type locality. Described from Alexandria (Egypt). Remarks. The first introduction of the name (Monterosato, 1884h: 7) was by a reference to a drawing in the plates of Egyptian molluscs by J.-C. Savigny. It is arguably the oldest record of this Indo–Pacific alien species in the Mediterranean Sea. It has been suggested that it had inhabited the waters of Alexandria harbour before the opening of the Suez Canal (Ghisotti, 1974: 7), although different hypotheses were proposed for its introduction in the Mediterranean (e.g. Por, 1978: 30, 31, 34). The exceptional proliferation of this mollusc brought Monterosato to reject the Indo–Pacific origin for this species, its abundance in the Gulf of Gabès allegedly proving it as a native undescribed species (see Monterosato, 1900: 393), but this is not tenable. It is currently included in Pinctada imbricata Röding, 1798, which is probably a complex of species. Recorded by MolluscaBase (2018) as a synonym of Pinctada imbricata radiata (Leach, 1814)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 81, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Ghisotti, F. (1974) Recente penetrazione in Mediterraneo di molluschi di provenienza indopacifica. Quaderni della Civica Stazione ldrobiologica di Milano, 5, 7 - 21.","Por, F. D. (1978) Lessepsian migration. The influx of Red Sea biota into the Mediterranean by way of the Suez Canal. In: Ecological Studies. Vol. 23. Springer, Berlin, 228 pp. https: // doi. org / 10.1007 / 978 - 3 - 642 - 66728 - 2"]}

Family MYTILIDAE arenaria, Crenella [Crenella arenaria Monterosato, 1875 ex H. Martin, ms.] (Figures 34K, L) 1872b: 19 [VI: 101]—nomen nudum 1874a: 249 [X: 175]—nomen nudum 1875b: 10 [XIII: 236]—nomen nudum 1875c: 7 [XIV: 283]—available name Type material. MCZR–M–14017 —21 sh + 23 v + 15 frg “ Crenella? arenaria Sciacca!” Type locality. Described from Sciacca (Sicily). Remarks. The species was described—very briefly indeed—in a paper on the shells collected from coralligenous bottoms off Sciacca (Sicily), thus the provenance of the material found in the Monterosato collection fits the Type locality.. The actual systematic position of the species is problematic and needs further investigation. Recorded by MolluscaBase (2018) as Crenella arenaria Monterosato, 1875 ex H. Martin, ms., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 77, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

glauca, Monia [Pododesmus squama (Gmelin, 1791)] (Figures 35G, H) 1884h: 3 [XXXI: 659]—available name Type material. MCZR–M–13047 —2 sh “ Monia glauca M. Napoli. ” MCZR–M–13005 —48 sh + 3 frg “ Monia glauca M. Ficarazzi ”. Type locality. Described from Palermo and Ficarazzi † (Sicily), and Napoli (Italy). Remarks. Name introduced to distinguish Anomia striata Brocchi, 1814, sensu Lovén (1846: 183), and accompanied by a description. Monia glauca was considered as valid by Sabelli et al. (1990 –1992: 84, 296—as Pododesmus glaucus), and is recorded as a possible synonym of Pododesmus squama (Gmelin, 1791) which is a valid species (Holmes, 2017) by MolluscaBase (2018). We keep it under this synonymy, although it may be rather related to Pododesmus patelliformis (Linnaeus, 1761)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 79, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Brocchi, G. B. (1814) Conchiologia fossile subapennina con osservazioni geologiche sugli Apennini e sul suolo adiacente. 2 Vols. Stamperia Reale, Milano, 56 + 80 [Roman numerals] + 712 pp., 16 pls.","Loven, S. L. (1846). Nordens Hafs - Mollusker. Index Molluscorum litora Scandinaviae occidentalia habitantium. Ofversigt af Kongliga Vetenskaps Akademiens Forhandlingar, 1846, 134 - 160, 182 - 204. [Offprint, pp. 1 - 50]","Sabelli, B., Giannuzzi-Savelli, R. & Bedulli, D. (1990 - 1992) Catalogo Annotato dei Molluschi Marini del Mediterraneo- Annotated Check-List of the Mediterranean Marine Mollusks. 3 Vols. Edizioni Libreria Naturalistica Bolognese, Bologna, xiv + 781 pp.","Holmes, A. M. (2017) Phylogenetics of British saddle oysters (Bivalvia: Anomiidae) - A review of the shell morphology, internal anatomy and genetics of Pododesmus in British waters. Journal of Conchology, 42 (5), 317 - 325."]}

navicula, Gryphaea [Neopycnodonte cochlear (Poli, 1795)] (Figures 36A, B) 1884h: 5 [XXXI: 661]—available name Type material. MCZR–M–5466 — 7 v “Sciacca”// 1 sh “(Pycnodonte) Gryphaea navicula in Nat. Sic. 1884 estratto Nomencl. gen. e sp. p. 5 (typus) fondi coralligeni di Sciacca (Monts Del Prete)” MCZR –M–5504 —1 sh “ Gryphaea !! Navicula, Monts. Palermo n. sp.” MCZR–M–5634 —1 sh + 10 v “ Pycnodonta navicula Monts (Ostrea) 1884 Nomencl. gen. e sp. p. 5 Sciacca”. Type locality. Described from Sciacca, Palermo (Sicily), Patrasso (Greece). Remarks. Subsequently figured (1915, pl. IV, fig. 1). Recorded by MolluscaBase (2018) as taxon inquirendum. Wisshak et al. (2008) convincingly suggested that it is a synonym of Neopycnodonte cochlear (Poli, 1795) a position that we share., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 80, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Wisshak, M., Lopez Correa, M., Gofas, S., Salas, C., Taviani, M., Jakobsen, J. & Freiwald, A. (2008) Shell architecture, element composition, and stable isotope signature of the giant deep - sea oyster Neopycnodonte zibrowii sp. n. from the NE Atlantic. Deep-Sea Research I, 56, 374 - 407. https: // doi. org / 10.1016 / j. dsr. 2008.10.002"]}

herculeus, Mytilus [Mytilus galloprovincialis Lamarck, 1819] (Figures 34M, N) 1884h: 6 [XXXI: 665]—available name Type material. MCZR –M–9788 —2 sh + 1 v dx “ Myt. Herculeus di Sciacca. ” MCZR–M–9688 —2 sh “Sciacca”, “ Mytilus herculeus Monts. grande esemplare ‘specimen maximum’ di Sciacca (Sicilia)”. Type locality. Described from Sciacca (Sicily). Remarks. Introduced as Mytilus galloprovincialis var. “ herculea ”, the name M. herculeus was raised to the status of species in subsequent works of Monterosato (1891 a: 97, note; 1915: 10). It is a giant form of M. galloprovincialis Lamarck, 1819. Recorded by MolluscaBase (2018) as a synonym of Mytilus galloprovincialis Lamarck, 1819. hyalinus, Mytilus (Dacrydium) [Dacrydium hyalinum (Monterosato, 1875)] (Figures 34O, P) 1875b: 10 [XIII: 236]—available name Type material. MCZR –M–13973 —20 sh + 13 v “ Mytilus hyalinus Monts ”// 1 sh + 2 frg glued on thin cardboard, from “Messina”// 40 sh + 55 v + 4 frg from Palermo (= “P”, marked on the cork cap). Label on the bottom: “Myt. (Dacrydium) hyalinus Monteros. Palermo 40— 190 m.” Type locality. Described from Palermo (Sicily) and other localities in the Mediterranean Sea, and Atlantic? Remarks. We follow the currently accepted opinion, that Mytilus hyalinus is available from Monterosato (1875b: 10), where size and shape are referred as diagnostic with the Atlantic Dacrydium vitreum (Møller, 1842), also considering the previous (Monterosato 1872b: 18) more detailed description of the Mediterranean form given by Monterosato. Ockelmann (1983: 120) studied specimens “from Monterosato’s own material” (Palermo), and recorded among them two specimens with several embryos inside (yet he did not report the whereabout of such possible type material). A valve of a further specimen originating from Monterosato in the Locard coll. (MNHN) was figured by Salas (1996: 52, fig. 92). Recorded by MolluscaBase (2018) as Dacrydium hyalinum (Monterosato, 1875). solidus, Mytilaster [Mytilaster solidus Monterosato, 1883 ex H. Martin ms.] (Figures 35A, B) 1872b: 18 [VI: 100]—nomen nudum 1883a: 89 [XXXa: 603]—available name Type material. MCZR –M–9552 —4 sh “Mod. solida Martin ms. Etang d’Engrenier d. Martin” MCZR –M–9531 —2 sh “ M. solidus C. di Prov. a.” Type locality. Described from Martigues (France), and Palermo (Sicily). Remarks. Despite the species having been discussed and/or figured by several authors (e.g., Locard, 1889: 155– 158, pl. V, fig. 9; B.D.D., 1890: 149–150, pl. 29, figs 11–14; Bogi et al., 1985: 25; 26, fig. 2; Giannuzzi–Savelli et al., 2001: 111, figs 178–181), its actual identity is still unclear and has been interpreted in quite diverging ways. The whole genus Mytilaster Monterosato, 1883, needs a careful revision. Recorded by MolluscaBase (2018) as Mytilaster solidus Monterosato, 1883., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on pages 77-78, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Ockelmann, K. W. (1983) Descriptions of mytilid species and definition of the Dacrydiinae n. subfam. (Mytilacea - Bivalvia). Ophelia, 22 (1), 81 - 123. https: // doi. org / 10.1080 / 00785326.1983.10427225","Salas, C. (1996) Marine Bivalves from off the Southern Iberian Peninsula collected by the Balgim and Fauna 1 expeditions. Haliotis, 25, 33 - 100.","Locard, A. (1889) Revision des especes francaises appartenant au genre Mytilus. Bulletin de la Societe Malacologique de France, 6, 83 - 164, pls. 3 - 5.","Bogi, C., Coppini, M. & Margelli, A. (1985) Contribution to the knowledge of the Malacofauna of the Northern Tyrrhenian sea (Fam. Mytilidae). La Conchiglia, 17 (200 - 202), 24 - 27."]}

Family CORBULIDAE trigonula, Corbulomya [Lentidium mediterraneum (O.G. Costa, 1830)] (Figures 39C–E) 1884h: 30 [XXXI: 686]—available name Type material. MCZR–M–19802 — 2 v “ Corbulomya trigonula n. sp. Magnisi (1886)” Type locality. Described from Magnisi (Sicily). Remarks. Recorded by MolluscaBase (2018) as a synonym of Lentidium mediterraneum (O.G. Costa, 1830)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 86, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family PECTINIDAE commutatus, Pecten [Aequipecten commutatus (Monterosato, 1875)] 1875c: 6 [XIV: 282]—available name Type material. MNHN –IM–2000–24361 — Holotype, Sicily. Historical material. MCZR –M–13542 —2 sh. “Palermo” ex showed PBE (1976) // 7 sh and 2 v “P. Philippii Recluz = P. gibbus Auctorum non L. Palermo, S. Vito” Type locality. Sicily (Pecten philippii Récluz, 1853). Remarks. Replacement name for Pecten philippii, Récluz 1853 non Michelotti (1839). Recorded by MolluscaBase (2018) as Aequipecten commutatus (Monterosato, 1875).

dianae, Ostrea [Ostrea edulis Linnaeus, 1758] (Figures 36E, F) 1915: 10 [LXV: 1254]—available name Type material. MCZR –M–5664 — 2 v “ O. lamellosa (Sn. di M. Rosato) Etang de Diane ” Kleciack’s handwriting, “ Zara. Kleciack” [likely meaning “found also at Zara ”] Type locality. Described from Etang de Diane (Corsica). Remarks. A name accompanied by a description, introduced for Ostrea boblayei Deshayes, 1833, sensu B.D.D. (1887: 14; pl. 3, figs 1–5), a Recent species considered as distinct from Deshayes’ fossil one. Recorded by MolluscaBase (2018) as taxon inquirendum. The type material belongs to Ostrea edulis Linnaeus, 1758 [new synonymy]. scaeva, Ostrea (ex Valenciennes ms.) [Ostrea edulis Linnaeus, 1758] (Figures 36G) 1915: 9, pl. I, figs 1, 4 [LXV: 1253, 1263, figs 1, 4]—available name Type material. MCZR –M–5590 —2 sh “ O. scaeva depressa sine loco forse coste atlantiche” MCZR –M–5551 —2 sh “ O. scaeva Valenc. Palermo ” MCZR –M–5515 —1 sh “ O. Scaeva Napoli! Valencienne 1861” MCZR –M–5550 —3 sh + 1 v “ O. scaeva Valenciennes Oran e Algeri Joly e Pallary var. Oranica Monts” MCZR –M–5581 —1 sh “ O. scaeva Valenciennes di Napoli! coll. Tiberi.” MCZR–M–5533 —2 sh “ O. scaeva var. scaevo—depressa coste Atlantiche della Francia” MCZR –M–5557 —2 sh “ O. scaeva var. armata, Santa Gilla (Cagliari) ” MCZR –M–5545 —1 sh + 1 v “ O. Scaeva Valen. var. scaevo—depressa. Malta! Monts ” MCZR –M–5539 —1 sh “ O scaeva Valenc. Catania! D. Dr. Aradas”. MCZR–M–5535 — 15 v “ O. scaeva var. Nassophila, Viareggio” Type locality. Described from Palermo, Catania and Monte Pellegrino † (Sicily), and Napoli (Italy). Remarks. Recorded by MolluscaBase (2018) as a synonym of Ostrea edulis Linnaeus, 1758., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on pages 80-81, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

ensiformis, Pinna [Pinna nobilis Linnaeus, 1758] (Figure 36H) 1884h: 8 [XXXI: 664]—available name Type material. Not found Type locality. Described from Chioggia and Trieste (Italy), and Palermo (Sicily). Remarks. Lot 5368 could probably be part of the type material (6 sh from Chioggia) but there are now only the labels left. The specimens were arguably employed for the PBE (1976), and not returned to their original place. Pinna ensiformis is commonly listed among the synonyms of P. nobilis Linnaeus, 1758 (e.g.: Sabelli et al., 1990 – 1992: 285; CLEMAM: Gofas & Le Renard, 2015; MolluscaBase, 2018)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 81, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Sabelli, B., Giannuzzi-Savelli, R. & Bedulli, D. (1990 - 1992) Catalogo Annotato dei Molluschi Marini del Mediterraneo- Annotated Check-List of the Mediterranean Marine Mollusks. 3 Vols. Edizioni Libreria Naturalistica Bolognese, Bologna, xiv + 781 pp.","Gofas, S. & Le Renard, J. (Eds.) (2015) CLEMAM: Check List of European Marine Mollusca. Available from: http: // www. somali. asso. fr / clemam / index. clemam. html (accessed 31 January 2018)"]}

perminima, Nucula [Austronucula perminima (Monterosato, 1875)] (Figures 34G, H) 1875c: 8 [XIV: 284]—available name Type material. MCZR –M–14376 —1 sh “ Nucula perminima n. sp. Sciacca! 1875”// 4 sh + 15 v “Sciacca”// 4 v sn + 1 v dx “Sciacca” Type locality. Described from Sciacca (Sicily). Remarks. Monterosato changed his opinion on this species: first he described it as a new species; then lowered it to the rank of variety “ minor ”, or young stage, of Nucula nucleus (Linnaeus, 1758) (Monterosato, 1878a: 66), and finally (Monterosato, 1881b: 52), listed it among the synonyms (as young stage) of Nucula aegeensis Forbes, 1844 —now in Ennucula Iredale, 1931 —a view also followed by Sabelli et al. (1990 –1992: 274). Nucula perminima was re–evaluated as valid species by Giannuzzi–Savelli et al. (2001: 31; 45, figs 11–13) and Palazzi & Villari (2001: 24; 41, figs 91–96), considering it as a senior synonym of Nucula recondita Gofas & Salas, 1996. La Perna (2008a: 15–16; figs 1A–D) confirmed their views on the basis of the type material in the Monterosato collection, and published good light photos of syntypes. Recorded by MolluscaBase (2018) as Austronucula perminima (Monterosato, 1875)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 76, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Sabelli, B., Giannuzzi-Savelli, R. & Bedulli, D. (1990 - 1992) Catalogo Annotato dei Molluschi Marini del Mediterraneo- Annotated Check-List of the Mediterranean Marine Mollusks. 3 Vols. Edizioni Libreria Naturalistica Bolognese, Bologna, xiv + 781 pp.","Palazzi, S. & Villari, A. (2001) Molluschi e Brachiopodi delle grotte sottomarine del Taorminese. La Conchiglia, 32 (297) Supplement, 1 - 56.","Salas, C. (1996) Marine Bivalves from off the Southern Iberian Peninsula collected by the Balgim and Fauna 1 expeditions. Haliotis, 25, 33 - 100.","La Perna, R. (2008 a) The identity of Nucula perminima Monterosato, 1875 and Yoldia striolata Brugnone, 1876 (Bivalvia: Protobranchia). Bollettino Malacologico, 44 (1 - 4), 15 - 19."]}

tumidula, Silicula [Microgloma pusilla (Jeffreys, 1879)] (Figures 34C, D) 1875b: 11 [XIII: 237]—as Phaseolus tumidulus —nomen nudum 1875c: 9 [XIV: 285]—as Phaseolus tumidulus —nomen nudum 1878c: 67—[XIX: 381]—as Phaseolus tumidulus —nomen nudum 1880c: 56 [XXVII: 540]—available name Type material. MCZR–M–14434/L —1 sh (Lectotype) “ Phaseolus tumidulus,...xxxxx.. [unreadable] Monteros. Palermo 90—210 m. inedito” designated by Gaglini (1991). MCZR –M–14434/P —2 sh + 2 v (Paralectotypes) // 1sh + 2 v Label on the bottom: “ Phaseolus tumidulus,...xxxxx.. [unreadable] Monteros. Palermo 90— 210 m. inedito” Type locality. Palermo (Sicily) Described also from Sciacca (Sicily). Remarks. The species was reviewed by Ockelman & Warén (1998), who reported a number of syntypes in the MCZR that does not match the total we found, and reported the presence of another possible syntype in SMNH. They assigned the species to Microgloma Sanders & Allen, 1973 (type sp. Microgloma yongei Sanders & Allen, 1973, by original designation) and that genus to the family Nuculanidae H. Adams & A. Adams, 1 858. Recorded by MolluscaBase (2018) as Microgloma tumidula (Monterosato, 1880) in the family Yoldiidae Dall, 1908. However, two similar species have been repeatedly mixed under this name. The types of S. tumidula in MCZR seem to be the species that Salas (1996: figs 58–61) and probably Ockelmann & Warén (1998: fig. 8A) assigned to Microgloma pusilla (Jeffreys, 1879), which is the commonest one: this makes M. tumidula (Monterosato) a synonym of M. pusilla (Jeffreys) [new synonymy]. The second species (Salas, 1996: figs 62–64; Ockelmann & Warén, 1998: figs 8C, D) (more trapezoidal) is Microgloma turnerae Sanders & Allen, 1973, valid name for this species [new status], which has been wrongly synonymized with S. tumidula., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on pages 75-76, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Gaglini, A. (1991) Seconde spigolature ... monterosatiane. Notiziario del C. I. S. Ma., 12 - 13, 1 - 22. [1990 - 1991]","Ockelmann, K. & Waren, A. (1998) Taxonomy of and biological notes on the bivalve genus Microgloma, with comments on Protobranch nomenclature. Ophelia, 48 (1), 1 - 24. https: // doi. org / 10.1080 / 00785236.1998.10428674","Salas, C. (1996) Marine Bivalves from off the Southern Iberian Peninsula collected by the Balgim and Fauna 1 expeditions. Haliotis, 25, 33 - 100."]}

SUPERFAMILY NUCULANOIDEA Family YOLDIIDAE, Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 75, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

circinata, Chama [Chama circinata Monterosato, 1878] (Figures 36K, L) 1878c: 71 [XIX: 385]—available name Type material. MCZR–M–15323 —4 sh “ Chama circinata Monts. Boll. Mal. Ital. ” “Sardegna (Tiberi) Fondi coralligeni”// 1 v sup. “ Ch circinata, Monts. Sciacca! Del Prete” MCZR–M–15270 —1 sh “ Chama circinata di Lipari Leg. Sequenza ” MCZR –M–15324 —1 sh “ Cap de Garde (Hagenmull.)” MCZR–M–15231 — 1 v sup. “ Ch. circinata, Monts. Palermo? (Brugnone)” Type locality. Described from Mediterranean Sea. Remarks. Recorded by MolluscaBase (2018) as Chama circinata Monterosato, 1878., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 81, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

crassa, Neaera [Cuspidaria cuspidata (Olivi, 1792)] (Figures 39F, G) 1878c: 75 [XIX: 389]— Neaera cuspidate var. crassa— nomen nudum 1881a: 250 [XXVIII: 576]—available name Type material. MCZR –M–20433 —1 sh “ N. crassa, Monts. = cuspidata (non Olivi) Tiberi. Descriz. Nuovi Test. Napoli 1855 p. 8, t. 1 fig. 1—4 (bene) tipo di Tiberi. Vide Monts. in Boll. Mal. Ital. 1880 p. 250 = cuspidata v. crassa Monts. En. e Sin p. 15.”, “ N. crassa, Monts. Bull. Malac. Ital.1880 p. 258.” Type locality. Described from Algeria. Remarks. Recorded by MolluscaBase (2018) as a synonym of Cuspidaria cuspidata (Olivi, 1792)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 86, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652

Family PECTINIDAE commutatus, Pecten [Aequipecten commutatus (Monterosato, 1875)] 1875c: 6 [XIV: 282]—available name Type material. MNHN –IM–2000–24361 — Holotype, Sicily. Historical material. MCZR –M–13542 —2 sh. “Palermo” ex showed PBE (1976) // 7 sh and 2 v “P. Philippii Recluz = P. gibbus Auctorum non L. Palermo, S. Vito” Type locality. Sicily (Pecten philippii Récluz, 1853). Remarks. Replacement name for Pecten philippii, Récluz 1853 non Michelotti (1839). Recorded by MolluscaBase (2018) as Aequipecten commutatus (Monterosato, 1875)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 78, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652, {"references":["Michelotti, G. (1839) Brevi cenni di alcuni resti delle classi Brachiopodi, ed Acefali, trovati fossili in Italia. Annali delle Scienze del Regno Lombardo-Veneto, 9 (3), 119 - 138."]}

Family LIMIDAE subovata, Lima [Limatula subovata (Monterosato, 1875 ex Jeffreys ms.)] (Figures 35I, J) 1875b: 9 [XIII: 235]—available name Type material. MCZR–M–13127 — 5 v “Palermo 200—300 m ” “ Lima subovata, Jeffr. Varie località, anche Atlantica” Type locality. Described from Palermo (Sicily) and Azores (Atlantic). Remarks. There is a further lot (MCZR, unnumbered box) of 1 valve identified as L. subovata by Jeffreys, from Palermo, labelled by Brugnone (“ Lima subovata Jeffr. from Jeffr.”), and by Jeffreys (“1443 fms. P.”). Monterosato bought Brugnone’s collection after his death (1884), therefore there is no proof that this shell was part of the type material (but Monterosato has likely studied Brugnone’s collection before acquiring it). However, the morphology of the single valve fits very well the shell features of the type material, showing that both Monterosato and Jeffreys shared the same view on the species identity (Lima subovata Jeffreys, 1876, is separately available and has its own types in USNM). Recorded by MolluscaBase (2018) as Limatula subovata (Monterosato, 1875)., Published as part of Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma, pp. 1-138 in Zootaxa 4477 (1) on page 79, DOI: 10.11646/zootaxa.4477.1.1, http://zenodo.org/record/1454652