11 results on '"Miyamoto, Kei"'
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2. Northernmost Record of the Surgeonfish Acanthurus nigros (Teleostei: Acanthuridae) from Minamidaitojima Island, Southern Japan
- Author
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Hanahara, Nozomi, Miyamoto, Kei, and Oka, Shin-ichiro
- Subjects
Coleoptera ,Curculionidae ,Insecta ,Arthropoda ,Animalia ,Biodiversity ,Taxonomy - Abstract
Hanahara, Nozomi, Miyamoto, Kei, Oka, Shin-ichiro (2021): Northernmost Record of the Surgeonfish Acanthurus nigros (Teleostei: Acanthuridae) from Minamidaitojima Island, Southern Japan. Species Diversity 26 (1): 43-47, DOI: 10.12782/specdiv.26.43, URL: http://dx.doi.org/10.12782/specdiv.26.43 more...
- Published
- 2021
Catalog
3. Parascolopsis eriomma : Russell 1990
- Author
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Miyamoto, Kei, Mcmahan, Caleb D., and Kaneko, Atsushi
- Subjects
Actinopterygii ,Parascolopsis eriomma ,Nemipteridae ,Animalia ,Biodiversity ,Parascolopsis ,Chordata ,Taxonomy ,Perciformes - Abstract
Parascolopsis eriomma (Jordan & Richardson, 1909) [New English name: Swallowtail dwarf monocle bream; New standard Japanese name: Ennbi-aka-tamagashira] (Figs. 1 B���C, 2E���F, 3, 4D���F, 5, 6; Table 1) Scolopsis eriomma Jordan & Richardson, 1909: 188, Pl. LXX [type locality: Kaohsiung (Takao), Taiwan]. Parascolopsis cf. eriomma: Hung et al. 2016: 11, fig. S3G (Taiwan). Parascolopsis eriomma: Fujiwara 2017: 148, color photograph of UPVMI 1634 (Panay Island, Philippines). Holotype. FMNH 52247, 190.9 mm SL, Kaohsiung (Takao), Taiwan. Non-type specimens (14 specimens, 107.9���172.8 mm SL). FMNH 110452, 139.4 mm SL, Dumaguete fish market, Negros Island, Philippines, 21 Sep. 1995, coll. M. W. Westneat; FMNH 137885, 107.9 mm SL, Puerto Galera fish market, Mindoro Island, Philippines, 24 May 2000, coll. K. Carpenter and M. W. Westneat; FRLM 34892, 123.9 mm SL, Bitung fish market, north Sulawesi, Indonesia, 14 Nov. 2008, coll. S. Kimura, H. Sakakibara and P. Teguh; OCF-P 3727, 144.1 mm SL, male, off Motobu, Okinawa-jima Island, southern Japan (26��38���32������N, 127��45���41������E), 200 m depth, 28 Sep. 2017, fishing, coll. A. Kaneko, Y. Oshiro and K. Miyamoto; OCF-P 3802, 139.2 mm SL, female, off Motobu, Okinawa-jima Island, southern Japan (26��39���56������N, 127��46���38������E), 150 m depth, 13 Nov. 2017, fishing, coll. A. Kaneko and Y. Oshiro; OCF-P3888 and 3889, 2 specimens, 123.5 and 172.8 mm SL, male and female, off Motobu, Okinawa-jima Island, southern Japan (26��38���27������N, 127��45���46������E), 200 m depth, 14 Feb. 2018, fishing, coll. A. Kaneko, Y. Oshiro and K. Miyamoto; OCF-P4096 and 4097, 2 specimens, 154.4 and 154.8 mm SL, off Motobu, Okinawa-jima Island, southern Japan (26��38���26������N, 127��45���39������E), 200 m depth, 31 May 2019, fishing, coll. A. Kaneko, Y. Oshiro and K. Miyamoto; OCF-P4209, 4210, 4212 and 4213, 4 specimens, 139.6��� 157.2 mm SL, off Motobu, Okinawa-jima Island, southern Japan, 26 Sep. 2019, coll. A. Kaneko and H. Takaoka; URM-P 37587, 161.2 mm SL, Okinawa-jima Island, 11 Jan. 1997, coll. H. Yoshigo. Diagnosis. Distinguished from congeners by the following combination of characters: gill rakers on first arch 15���17; caudal fin forked, length of forked part of caudal fin 6.5���7.9 times in SL (Figs. 1 B���C, 2E���F, 3A); eye diameter 1.1���1.3 times in length of longest dorsal-fin spine (Fig. 3B); yellow stripe absent on cheek (Figs. 1 B���C, 2E���F); very weak or no biofluorescence emission observed on isthmus and branchiostegal membrane (Fig. 4 D���F) (see paragraph on biofluorescence emission patterns). Description. Counts and proportional measurements are presented in Table 1. Body moderately deep, deepest at pelvic-fin base, depth 2.9���3.3 times in SL; head moderate, 3.1���3.3 times in SL; snout short, length less than diameter of eye, 3.8���4.7 times in HL; nostrils small, anterior and posterior nostrils closely aligned, located in front of eye; anterior nostril with small nasal flap; eyes large, round, located in upper portion of anteroposterior axis, diameter 2.4���2.9 times in HL; interorbital width 1.2���1.6 times in eye diameter; suborbital shallow, depth 3.8���5.2 times in eye diameter; mouth moderate, terminal, and slightly oblique; upper jaw nearly reaching to about level of anterior margin of pupil, 2.9���3.3 times in HL; 3���5 pairs of enlarged canines on front of both jaws, single row of small conical teeth follows with canines, villiform teeth present inside canines and small conical teeth; posterior edge of suborbital finely denticulate, with a small spine at upper corner; posterior margin of preopercle finely denticulate; posterior corner of opercle with a small spine. Origin of dorsal fin above pectoral-fin base, predorsal-fin length 0.9 times in HL; dorsal fin without notch; longest dorsal-fin spine falls within 4th to 6th dorsal-fin spine, longest dorsal-fin spine 2.0���2.2 times in HL; origin of anal fin about level with 1st soft dorsal-fin ray, preanal-fin length 1.5���1.6 in SL; 3rd anal-fin spine longest or almost equal to 2nd anal-fin spine, 3rd anal-fin spine 2.3���2.8 times in HL; posterior tips of dorsal and anal-fin rays falling well short of caudal-fin base; pectoral fins moderately long, tip of fins just reaching level of anus or slightly short, their length 1.1���1.2 times in HL; origin of pelvic fins about level with 3rd dorsal-fin spine, tip of fins just reaching anus or slightly short; length of 1st pelvic-fin ray 1.3���1.5 times in HL; caudal fin forked, tip of upper and lower lobes pointed; length of upper lobe and forked part of caudal fin 3.1���3.6 and 6.5���7.3 times in SL, respectively. Scales cycloid; scales on top of head extending forward between eyes to about level of posterior margin of pupil; snout, suborbital, lips, maxilla and isthmus naked; preopercle with 3���5 transverse scale rows, its lower limb naked; opercle with 3���6 transverse scale rows; dorsal fin and anal fin scaleless; axilla of pectoral fin naked; pelvic fin with axillary scales; anterior half of caudal fin covered with small scales. Color of fresh specimens (Figs. 1B, 2 E���F). Generally reddish body, darker dorsally and paler ventrally; iris red; pale yellow stripe on posterior edge of eye to pectoral-fin base; pale yellow stripe on mid-lateral line of trunk and tail; small black spot on upper portion of pectoral-fin base; dorsal fin mainly red, translucent vermiculate pat-terns present on membrane in small specimens; pectoral, pelvic and anal fins pale yellow; caudal fin mainly red, posterior edge and forked part paler. Color of preserved specimens. Generally brownish, darker dorsally and paler ventrally; eyes blackish; yellow and red marks present in the fresh condition completely lost with preservation; all fins translucent white. Biofluorescence emission patterns (Fig. 4 D���F). Yellow lateral stripe across pupil on iris; weak green stripe on mid-lateral line of trunk and tail; dorsal edge of dorsal fin green; base of pectoral fin green; pelvic and anal fins weakly green; lower lobe and tip of upper lobe of caudal fin green; isthmus and branchiostegal membrane very weak green or without biofluorescence. Distribution (Fig. 5). Parascolopsis eriomma has been recorded based on specimens or identifiable photographs from southern Japan (this study), Taiwan (Jordan & Richardson 1909; Hung et al. 2016, this study), Philippines (Fujiwara 2017; this study) and northern Sulawesi, Indonesia (this study). Etymology. Previously, the English name ���Rosy dwarf monocle bream��� and Japanese name ���Aka-tamagashira��� were used for P. eriomma. However, this study revealed that previously recognized P. eriomma included P. akatamae n. sp. This species is more narrowly distributed than P. akatamae (Fig. 5) and very rare at least in Japan and Taiwan (Hung et al. 2016; this study). Therefore, the English name ���Rosy dwarf monocle bream��� and Japanese name ���Aka-tamagashira,��� which were previously used for P. eriomma, were applied to P. akatamae, and a new English name, ���Swallowtail dwarf monocle bream��� and new standard Japanese name, ���Ennbi-aka-tamagashira��� have been applied to this P. eriomma. The Japanese ���Ennbi��� means tail of swallow and is derived from shape of the caudal fin of the species. Remarks. Scolopsis eriomma Jordan & Richardson, 1909 was originally described on the basis of 3 specimens [FMNH 52247 and CAS-SU 9243 (2 specimens)] collected from Kaohsiung, Taiwan. The original specimen labeled ���type��� and figured as such (FMNH 52247; Jordan & Richardson 1909) has been considered the holotype (Henn 1928; Ibarra & Stewart 1987; Ho & Shao 2011). Counts and measurements of examined non-type specimens mostly agree with those of the holotype (Table 1, Fig. 3). Body depth of the holotype is noticeably higher than non-type specimens, however this is regarded as proportional change with growth because the holotype is the largest among examined specimens. On the other hand, measurements of P. akatamae differ with those of the holotype for diagnostic characters (Fig. 3). This species was collected from a depth of 150���200 m on a sand-rubble bottom. No sexual dimorphism is observed in morphology, coloration or fluorescence patterns., Published as part of Miyamoto, Kei, Mcmahan, Caleb D. & Kaneko, Atsushi, 2020, Parascolopsis akatamae, a new species of dwarf monocle bream (Perciformes Nemipteridae) from the Indo-West Pacific, with redescription of closely related species P. eriomma, pp. 91-103 in Zootaxa 4881 (1) on pages 97-99, DOI: 10.11646/zootaxa.4881.1.6, http://zenodo.org/record/4425860, {"references":["Jordan, D. S. & Richardson, R. E. (1909) A catalog of the fishes of the island of Formosa, or Taiwan, based on the collections of Dr. Hans Sauter. Memoirs of the Carnegie Museum, 4 (4), 159 - 204, pls. 63 - 74. https: // doi. org / 10.5962 / bhl. title. 42937","Fujiwara, K. (2017) Family Nemipteridae. In: Motomura, H., Alama, U. B., Muto, N., Babaran, R. P. & Ishikawa, S. (Eds.), Commercial and bycatch market fishes of Panay Island, Republic of the Philippines. Kagoshima University Museum, Kagoshima, University of the Philippines Visayas, Iloilo, and Research Institute for Humanity and Nature, Kyoto, pp. 145 - 152.","Henn, A. W. (1928) List of types of fishes in the collection of the Carnegie Museum on September 1. Annals of the Carnegie Museum, 19 (4), 51 - 99.","Ibarra, M. & Stewart, D. J. (1987) Catalogue of type specimens of recent fishes in Field Museum of Natural History. Fieldiana Zoology, New Series, 35, 1 - 112. https: // doi. org / 10.5962 / bhl. title. 3000","Ho, H. C. & Shao, K. T. (2011) Annotated checklist and type catalog of fish genera and species described from Taiwan. Zootaxa, 2957 (1), 1 - 74. https: // doi. org / 10.11646 / zootaxa. 2957.1.1"]} more...
- Published
- 2020
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4. First Record of the Grenadier Coelorinchus sheni (Actinopterygii: Gadiformes: Macrouridae) from Japan
- Author
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Nakayama, Naohide, Takaoka, Hiroko, and Miyamoto, Kei
- Subjects
Biodiversity ,Taxonomy - Abstract
Nakayama, Naohide, Takaoka, Hiroko, Miyamoto, Kei (2018): First Record of the Grenadier Coelorinchus sheni (Actinopterygii: Gadiformes: Macrouridae) from Japan. Species Diversity 23: 121-127, DOI: 10.12782/specdiv.23.121 more...
- Published
- 2018
5. First Records of the Rare Snake Eel Ophichthus exourus (Pisces: Anguilliformes: Ophichthidae) from the Northern Hemisphere
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Tashiro, Fumihito, Hibino, Yusuke, and Miyamoto, Kei
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Ophichthidae ,Actinopterygii ,Animalia ,Biodiversity ,Chordata ,Taxonomy ,Anguilliformes - Abstract
Tashiro, Fumihito, Hibino, Yusuke, Miyamoto, Kei (2017): First Records of the Rare Snake Eel Ophichthus exourus (Pisces: Anguilliformes: Ophichthidae) from the Northern Hemisphere. Species Diversity 22: 213-217, DOI: 10.12782/sd.22_213 more...
- Published
- 2017
6. Choerodon margaritiferus Fowler and Bean 1928
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Miyamoto, Kei, Nonaka, Ai, and Oka, Shin-Ichiro
- Subjects
Actinopterygii ,Labridae ,Animalia ,Biodiversity ,Choerodon margaritiferus ,Chordata ,Choerodon ,Taxonomy ,Perciformes - Abstract
Choerodon margaritiferus Fowler and Bean, 1928 English name: Pearly Tuskfish New standard Japanese name: Yuumodoro-bera Figs. 1, 2, 3; Table 1 Choerodon margaritiferus Fowler and Bean, 1928: 197 (type locality: Jolo market, Jolo, the Philippines); Parenti and Randall, 2000: 10 (New Caledonia and the Philippines); Westneat, 2001: 3400 (Philippines); Allen and Randall, 2002: 113 (the Philippines); Shea and Liu, 2010: Choerodon margaritiferus (New Caledonia, Chesterfield Islands, and the Philippines); Allen and Erdmann, 2012: 646, unnumbered color photograph (the Philippines and Taiwan); Puckridge et al., 2015: 66 (Tanjung Luar, Lombok, Indonesia). Choerodon sp. A: White et al., 2013: 266, pl. 89.19 (Tanjung Luar, Lombok, Indonesia). Material examined. 5 specimens, 94.5 ���107.0 mm in standard length (SL), all from near Sesoko Island, Okinawa, southern Japan (26 �� 39 ���N, 127 �� 51 ���E), 30 m depth, fishing by Y. Omata: OCF-P 20140825 - 3, female, 96.4 mm SL, 24 August 2014; OCF-P 20140827 - 1, male, 107.0 mm SL, 27 August 2014; OCF-P 20140827 -2, 20140827- 3 and 20140827 - 4, female, 94.5 ���103.0 mm SL, 27 August 2014. Comparative material. Holotype of C. margaritiferus Fowler and Bean, 1928: USNM 89966, male, 116.0 mm SL, Jolo market, Jolo, the Philippines, 11 February 1908. Diagnosis. Distinguished from congeners by the following combination of characters: dorsal-fin rays XII, 8; scales between lateral line and 5 th dorsal-fin spine 2 ��; lower pectoral-fin rays elongate; male brown or pale orange dorsally, with a blue or white stripe below eye continuing as a line of spots to upper pectoral-fin base, an additional stripe located dorsally on caudal-peduncle and below most of the dorsal-fin base, a white or blue bar on pectoral-fin base, and an eye-sized red blotch on back below base of 9 th to 11 th dorsal-fin spines (center of the blotch above lateral line); female orange dorsally, with a broad red band on posterior edge of caudal-fin. Description. Counts and proportional measurements of 5 Okinawan specimens and holotype of C. margaritiferus are displayed in Table 1. Body moderately slender, elongate, deepest at pectoral-fin base, depth 3.7 ��� 4.0 (3.5) in SL; head large, length 2.6 (2.8) in SL; snout moderately short, slightly pointed, 3.3���3.6 (3.4) in head length (HL); eyes large, round, located along upper portion of anteroposterior axis, diameter 4.5 ���5.0 (4.9) in HL; mouth large, terminal, and slightly oblique; upper jaw nearly reaching vertical at front edge of orbit, 3.5���3.8 (3.6) in HL; 2 pairs of enlarged canines on front of upper jaw, inner pair projecting forward and curved ventrally, outer pair curved posteriorly; 1���2 (1) enlarged canines on rear portion of upper jaw, at the angle of the mouth, strongly curved anterolaterally; no teeth between front and rear canines of upper jaw; 2 pairs of enlarged canines anteriorly on lower jaw, inner pair projecting forward and slightly smaller than outer pair, outer pair strongly curved posterolaterally; single row of 9���10 (10) small canines aligned along middle of lower jaw; posterior edge of preopercle slightly serrated; membranous edge of opercle produced, tip of membranous edge over pectoral-fin origin; nostrils small, on the line between top of eye and tip of snout, anterior nostril at midpoint on this line and posterior nostril about midway between anterior edge of eye and anterior nostril; posterior nostril ovate without a rim, slightly bigger than anterior nostril. Scales cycloid; head scales generally smaller than body scales; snout, lower jaw, and interorbital area scaleless; 3 (3) transverse scale rows on rear of cheek, remainder of cheek and suborbital region scaleless; preopercle naked; interopercle mainly naked except for a single row of 6���8 (6) small scales just below lower edge of preopercle; 4���5 (5) transverse scale rows on opercle; membranous edge of opercle and subopercle scaleless; predorsal scales extending anteriorly to level between rear edge of eye and posterior margin of preopercle; scales between lateral line and 5 th dorsal-fin spine 2 ��; lateral line not interrupted, abruptly descending under 3 rd to 7 th soft dorsal-fin rays; last two pored scales of lateral line (posterior to hypural plate) greatly enlarged, the terminal one extending to about middle of caudal-fin; basal sheath of dorsal and anal fins consisting of row of small (compared to adjacent body scales), pointed scales; pectoral fins scaleless; 3���4 elongate scales adjacent to the outer edge of each pelvic fin. Origin of dorsal fin above 3 rd lateral line scale, predorsal-fin length 1.0��� 1.1 (1.1) in HL; 1 st dorsal-fin spine 5.3���5.9 (5.3) in HL; 2 nd dorsal-fin spine 4.2���4.6 (4.0) in HL; 5 th dorsal-fin spine 3.7���4.1 (3.7) in HL; 5 th to 11 th dorsal-fin spines about equal in length; membranes of dorsal-fin spines extending slightly above spine tips; 1 st soft dorsal-fin ray 3.7 ���4.0 (3.8) in HL; last soft dorsal-fin ray 4.1���4.8 (4.2) in HL; origin of anal fin about level with 10 th dorsal-fin spine, preanal-fin length 1.6 (1.6) in SL; 3 rd anal-fin spine longest, 4.3���4.7 (broken in holotype) in HL; 1 st soft anal-fin ray 3.8���4.3 (4.0) in HL; last soft anal-fin ray 4.3���4.4 (3.8) in HL; tips of dorsal and anal fin rays falling well short of caudal-fin base; origin of pectoral fins just below origin of dorsal fin; pectoral fins short, upper tip of pectoral fins reaching under 9 th or 10 th dorsal-fin spine, pectoral fins 1.6���1.7 (1.7) in HL; lower pectoral fin rays elongate, about half the length of longest pectoral-fin ray, 3.3���4.1 (3.7) in HL; origin of pelvic fins about level with 2 nd dorsal-fin spine, tip of fins just or not quite reaching anus, their length 1.9 ���2.0 (1.9) in HL; caudal fin generally truncate with slightly extruded upper and lower fin tips, longest rays 1.8 ���2.0 (2.0) in HL, middle of posterior edge slightly convex in male (vs. truncate in female). Color of fresh male (Fig. 1 A). Generally pale orange dorsally and pearly white ventrally; iris yellow; red lateral stripe from top of preopercle to upper portion of caudal-fin base; notable eye-sized red blotch on back below base of 9 th to 11 th dorsal-fin spines, center of blotch above lateral line; anterior edge of red blotch slightly bordered with white; blue lateral stripe from snout tip past lower boundary of eye, continued as row of fuzzy light blue spots to below end of dorsal fin; similar stripe from middle of postocular space to below 5 th dorsal-fin spine; small blue spot on upper side of postocular; 2 blue lateral stripes on caudal-peduncle along dorsal edge and lateral line; faint whitish bar on pectoral-fin base; dorsal fin mainly yellow, broad blue stripe along outer edge, spines and soft rays slightly reddish; pectoral fins clear and colorless; pelvic-fins mainly bluish white, narrow yellow stripe along 2 nd soft ray; anal fin mainly blue, broad yellow stripe across middle of the fin; caudal fin pale orange. Color of preserved male (10 % formalin for 3 months). Generally grayish dorsally and whitish ventrally; head grayish; iris light yellow; red stripe and blotch present in the fresh condition completely lost; blue stripes and spots present in the fresh condition faded to grayish blue; white bar on pectoral-fin base; all fins translucent white. Color of fresh female (Fig. 1 B). Generally orange dorsally and white ventrally; iris yellow; around the eye slightly pinkish; red lateral stripe from upper portion of preopercle to upper half of caudal-fin base, its lower border pinkish; dorsal fin mainly yellow, broad mauve stripe across upper half of the fin, spines and soft rays slightly reddish; pectoral fins clear and colorless; pelvic fins mainly bluish white, narrow yellow stripe along second soft ray; anal fin mainly blue, fuzzy yellow stripe across upper half of the fin, lower edge bordered with yellow; caudal fin mainly yellow and small red dots scattered, prominent broad red band on posterior edge of caudal fin. Color of preserved female (10 % formalin for 3 months). Generally light yellow dorsally and whitish ventrally; opercle grayish; iris light yellow; red stripe present in the fresh condition completely lost; all fins generally translucent white; posterior edge of caudal fin sometimes blackish. Distribution. Choerodon margaritiferus has been collected from Okinawa Island, Japan (in the present study), Taiwan (Allen & Erdmann 2012), Jolo, the Philippines (Fowler & Bean 1928) and Lombok, Indonesia (White et al. 2013; as Choerodon sp. A). Shea & Liu (2010) and Parenti & Randall (2000) included Chesterfield Islands (Coral Sea) and New Caledonia, respectively, in the range of the species. However, they did not show sufficient evidence that the species lives throughout this range, and further research is needed in these areas. In Okinawa, this species was collected from a depth of 30 m over sand-rubble bottom. Ecological note. Histological observation of the gonads indicates that the specimens were mature, because filled spermatozoa were present in the testes of the male and mature oocytes (vitellogenetic and hydrated stages) were present in the female (Fig. 2). In addition, some immature oocytes (perinucleolar stage) were found in a mature testis (Fig. 2 A), providing strong evidence of the protogynic hermaphroditism found in most labrids. Etymology. The English name ���Pearly Tuskfish��� follows Allen and Erdmann (2012). The word ���Yuumodoro��� used in the new standard Japanese name means the scene of sunset at Motobu town, near our collecting site, in the Okinawan local song. The red blotch and blue lateral stripe in the male suggest a sunset over the ocean. In addition, the word ���Bera��� means wrasse fish in standard Japanese. Identification. Choerodon margaritiferus Fowler and Bean, 1928 was originally described on the basis of 1 specimen (Holotype: USNM 89966) collected from Jolo, the Philippines. Counts and measurements of examined specimens agree closely with those of the holotype (see description and Table 1). Although the body color of the holotype has mostly faded, some diagnostic coloration remained in the form of white marks: a lateral stripe under the eye, a row of spots on the mid-lateral part of the body, a lateral stripe on the middle of the caudal peduncle, and a bar on the pectoral-fin base (Fig. 1 C). These color patterns matched well with those of the examined male specimen (see Figs. 1 A, C). In addition, the coloration of the holotype as described agrees almost exactly with that of the specimen. The only point of difference is that the notable red blotch in our male specimen was not noted in the original description. Fowler and Bean may have not observed it, because this character easily vanishes during preservation. In the genetic analysis, the partial sequence of COI of examined specimens and 6 comparative species were aligned at 626 sites, 184 of which were polymorphic. The neighbor-joining dendrogram derived from the aligned sequences showed that the described specimens and C. margaritiferus (KM 224711, from Indonesia, identified by Puckridge et al., 2015) represent the same clade (Fig. 3). No genetic differences were found between the two color types (male and female) of examined specimens. Thus, examined specimens in this study were regarded as the same species. Meanwhile, other comparative species clearly represented separate clades with 78���100 % bootstrap probability. This result emphasizes that the specimens collected from Okinawan waters were identified correctly as C. margaritiferus. Choerodon margaritiferus Pectoral-fin rays 14 14 14 14 14 15 Pelvic-fin rays I, 5 I, 5 I, 5 I, 5 I, 5 I, 5 Principal caudal-fin rays 14 14 14 14 14 14 Upper procurrent caudal rays 7 7 8 7 7 8 ......continued on the next page Holotype Non-type specimens from Okinawan waters USNM OCF-P OCF-P OCF-P OCF-P OCF-P 89966 20140827 - 1 20140825 - 3 20140827 - 2 20140827 - 3 20140827 - 4 male male Female female female female, Published as part of Miyamoto, Kei, Nonaka, Ai & Oka, Shin-Ichiro, 2015, Northernmost record of a poorly known tuskfish, Choerodon margaritiferus (Perciformes: Labridae), from southern Japan, and first description of a female in Zootaxa 4007 (1), DOI: 10.11646/zootaxa.4007.1.5, http://zenodo.org/record/238558, {"references":["Fowler, H. W. & Bean, B. A. (1928) Contributions to the biology of the Philippine Archipelago and adjacent regions. Vol. 7. The fishes of the families Pomacentridae, Labridae, and Callyodontidae, collected by the United States Bureau of Fisheries steamer \" Albatross, \" chiefly in Philippine seas and adjacent waters. Bulletin of the United States National Museum, 100, i - viii + 1 - 525, pls. 1 - 49.","Parenti, P. & Randall, J. E. (2000) An annotated checklist of the species of the labroid fish families Labridae and Scaridae. Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology, 68, 1 - 97.","Westneat, M. W. (2001) Labridae. In: Carpenter, K. E. & Niem, V. H. (Eds.), The living marine resources of the Western Central Pacific, volume 6. Food and Agriculture Organization of the United Nations, Rome, pp. 3381 - 3403.","Allen, G. R. & Randall, J. E. (2002) A new species of wrasse (Labridae: Choerodon) from the tropical western Pacific. Aqua, Journal of Ichthyology and Aquatic Biology, 5 (3), 109 - 113.","Shea, S. & Liu, M. (2010) Choerodon margaritiferus. The IUCN Red List of Threatened Species. Version 2014.3. International Union for Conservation of Nature and Natural Resources. Available from: http: // www. iucnredlist. org / (accessed 6 February 2015)","Allen, G. R. & Erdmann, M. V. (2012) Reef fishes of the East Indies. Tropical Reef Research, Perth, xiii + 1292 pp.","Puckridge, M., Last, P. R. & Andreakis, N. (2015) The role of peripheral endemism and habitat associations in the evolution of the Indo-West Pacific tuskfishes (Labridae: Choerodon). Molecular Phylogenetics and Evolution, 84, 64 - 72. http: // dx. doi. org / 10.1016 / j. ympev. 2014.11.007","White, W. T., Last, P. R., Dharmadi, R. F., Chodrijah, U., Prisantoso, B. I., Pogonoski, J. J., Puckridge, M. & Blaber, S. J. M. (2013) Market fishes of Indonesia. Australian Centre for International Agricultural Research, Canberra, 438 pp."]} more...
- Published
- 2015
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- View/download PDF
7. Northernmost record of a poorly known tuskfish, Choerodon margaritiferus (Perciformes: Labridae), from southern Japan, and first description of a female
- Author
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Miyamoto, Kei, Nonaka, Ai, and Oka, Shin-Ichiro
- Subjects
Actinopterygii ,Labridae ,Animalia ,Biodiversity ,Chordata ,Taxonomy ,Perciformes - Abstract
Miyamoto, Kei, Nonaka, Ai, Oka, Shin-Ichiro (2015): Northernmost record of a poorly known tuskfish, Choerodon margaritiferus (Perciformes: Labridae), from southern Japan, and first description of a female. Zootaxa 4007 (1), DOI: http://dx.doi.org/10.11646/zootaxa.4007.1.5 more...
- Published
- 2015
8. Platyrhina hyugaensis Iwatsuki, Miyamoto and Nakaya, sp. nov
- Author
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Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro, and Zhang, Jie
- Subjects
Platyrhina hyugaensis ,Rhinobatidae ,Platyrhina ,Rajiformes ,Animalia ,Biodiversity ,Chordata ,Taxonomy ,Elasmobranchii - Abstract
Platyrhina hyugaensis Iwatsuki, Miyamoto and Nakaya sp. nov. New English name: Hyuga Fanray New Japanese name: Onino-uchiwa Figs. 2 A���B, 3 A���C, 4, 5; Table 1 Holotype. MUFS 21609, male, 391 mm TL, Meitsu, Miyazaki, Japan (31 �� 31 ��� 59 ���N, 131 �� 22 ��� 55 ���E), set net, coll. Y. Iwatsuki, 10 Oct. 2001. Paratypes (161���431 mm TL, n = 10). FRLM 1711, 378 mm TL, female, mouth of Ago Bay, Shima, Mie, Japan, set net; FRLM 29894, female, 359 mm TL, mouth of Ago Bay, Shima, Mie, Japan, set net; MUFS 3551 ��� 3552, 2 specimens, males, 202���279 mm TL, off Aoshima, Miyazaki, Japan, shallow trawls, coll. M. Akazaki, 23 June 1975; MUFS 3553, female, 210 mm TL, same data as MUFS 3351���3352; MUFS 5555, female, 189 mm TL, off Aoshima, Miyazaki, Japan, shallow trawls, coll. M. Akazaki, 17 Mar. 1975; MUFS 7272, female, 161 mm TL, off Aoshima, Miyazaki, shallow trawls, coll. M. Akazaki, 30 Sep. 1976; MUFS 23164, female, 431 mm TL, Meitsu, Nango-cho, Miyazaki, Japan, set net, coll. K. Miyamoto, 27 June 2007; MUFS 23225, female, 335 mm TL, Uchinoura Bay, Uchinoura-cho, Shibushi Bay, Kagoshima, Japan, coll. K. Miyamoto and Y. Iwatsuki, 6 Aug. 2007; MUFS 26936, female, 423 mm TL, set net, coll. H. Izumi, Iorigawa, Kadokawa Bay, Miyazaki, Japan, 13 Nov. 2008. Diagnosis. Distinguished from congeners in having the following combination of characters: one row of thorns (strongly hooked) on mid-dorsum of tail; a pair of thorns on anterior part of scapular region (apparent to touch in smallest specimen; 161 mm TL) (Fig. 3 B, indicated by white arrows); thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment (Figs. 2 A���B, 3 A���C); dorsal surface covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles (smooth to touch). Description. Counts and proportional measurements of the holotype and 10 paratype specimens of Platyrhina hyugaensis sp. nov. are shown in Table 1. Data for the holotype are presented first, followed by those of other specimens in parentheses. Disk broadly wedge-shaped, snout tip slightly angular, outer margins broadly rounded, free rear tip reaching or slightly beyond level of cloaca; preorbital and preoral snout lengths, 10 % (10���14 %) of TL and 10 % (10���13 %) of TL, respectively (Fig. 4); pelvic fins rounded (free rear tips angled), originating from abdominal surface at end of pectoral fins; tail shark-like, length greater than disc length, 64 % (53���64 %) of TL, abruptly narrower than disc width, lacking a caudal spine, abdominal surface flat with shallow groove along mid-abdominal axis; one row of thorns (strongly hooked) on mid-dorsum of nape to second dorsal fin origin; dermal-lateral folds on tail, originating well anterior to free rear tip of pelvic fin, reaching just behind caudal fin origin; two widely separated dorsal fins on tail, similar in size and shape, moderately large, anterior margins slightly convex with convex hind margin; first dorsal fin originating 1.4 (1.2���1.4) times maximum disc width from snout tip, well behind free rear tips of pelvic fins but anterior to mid-length of tail; second dorsal fin originating 1.6 (1.4���1.6) times maximum disc width from snout tip; interdorsal space 1.4 (1.4 ���2.0) times first dorsal fin base length, 1 (1���2) thorns on mid-dorsum; caudal fin relatively small, flat, oval, sometimes forming small lobe posterodorsally, dorsal margin length equal to (0.9 ���1.0 times) abdominal margin length; head moderately elongate; snout moderately long, soft, flexible; eyes moderately large, not elevated or protruding; spiracles leaf-shaped, 1.1 (1.0��� 1.6) times eye length, originating beside eyes; nostrils moderately large, nasal flap skirt-shaped; anterior aperture circular, lower part surrounded by short folds; mouth width moderate, upper and lower jaws arched, skin grooves around mouth; oral teeth small, rhomboid, slightly pointed in males, over 71 (57���67) regular rows on lower jaw (increasing with growth), upper and lower jaw teeth similar in shape and size; five pairs of gill openings, two anteriormost widely separated, distance between second to fifth gradually becoming narrower posteriorly; 6 (3���6) thorns around on orbits; two pairs of two (total eight, Fig. 3 B) symmetrical thorns on scapular region; a pair of thorns on anterior part of scapular region (apparent to touch in smallest specimen, 161 mm TL) (Fig. 3 B, indicated by white arrows); thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment (Figs. 2 A���B, 3 A���C); claspers of mature males greatly elongated; entire body and fins covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles on dorsal surface (smooth to touch); somewhat irregular small thorns aggregated on anterodorsal margin of disk from snout tip to maximum disc width. Color of fresh specimens. Based on holotype (MUFS 21609) and 3 paratypes (MUFS 23164, 23225 and 26936) photographed by K. Miyamoto and Y. Iwatsuki: dorsal surface often grayish-brown, darker medially; dorsal and caudal fins brown; abdominal surface whitish, outer margins of pectoral and ventral fins broadly grayishbrown. Color of preserved specimens. Dorsal surface often grayish-brown, darker medially; dorsal and caudal fins somewhat yellowish-brown; abdominal surface whitish, outer margins of pectoral and ventral fins broadly grayishbrown. Distribution. Platyrhina hyugaensis sp. nov. is currently known only from southeastern Kagoshima (Uchinoura Bay), Miyazaki (Hyuga Nada Sea) and Mie (Shima) Prefectures, Southern Japan, all facing the Pacific Ocean (Fig. 5). According to S. Kimura (personal communication), extensive observations off Mie Prefecture have resulted in several limited specimens being over ca. 30 year period, although the species has been commonly observed off Miyazaki, in the Hyuga Nada Sea. The apparent absence of the species from waters surrounding the Ogasawara and Ryukyu Islands suggest a very limited distribution. Additional examples of P. hyugaensis have not been found in any museum collections or during field sampling throughout the western Pacific region. The species is therefore considered to be endemic to the waters off southeastern Japan. A similar distributional pattern can be seen in other shallow coastal Japanese species, such as the gerreids Gerres microphthalmus and G. akazakii, centropomid Lates japonicus and myriopristid Myripristis kochiensis (see Iwatsuki et al. 2002, 2007; Katayama & Taki 1984; Randall & Yamakawa 1996). This may be related to sea water temperature (Iwatsuki et al. 1993, 2002, 2007; Randall & Yamakawa 1996), the area of distribution being closely related to a mean minimum winter sea surface temperature of 16 ��C (persistent for last ca. 100 years) (Kuniji et al., 1985). Such may be a limiting factor for survival in winter. Furthermore, the presence of all life history stages indicates that such species spawn and grow within this region. Accordingly, we recognize these species and P. h y u - gaensis, as endemic to the above noted area, Hyuga Nada Sea. Ecological notes. Specimens of Platyrhina hyugaensis sp. nov. have been frequently captured by set net within a depth of ca. 50 m from early spring (March) to autumn (November), whereas P. tangi sp. nov. has been commonly observed throughout the year. According to a local fisherman and a fish merchant (M. Wada and H. Kadokawa, respectively; personal communication), examples of the formers were not included in almost daily setnet catches (depth ca. 8���50 m) from November to March in 2007���2008 in northern Miyazaki (Kadokawa Bay, 32 �� 47 ��� 79 ���N, 131 �� 66 ��� 29 ���E) and southern Miyazaki (Meitsu, Nichinan Coast, 31 �� 54 ��� 27 ���N, 131 �� 38 ��� 56 ���E), respectively. This indicates that the species avoids lower sea temperatures in the winter season. At the same time, P. tangi were commonly captured, indicating significantly differing histories in the Hyuga Nada Sea. The stiff and robust nature of the claspers of two male specimens (MUFS 3351, 279 mm TL and MUFS 3352, 202 mm TL) of P. hyugaensis indicated recent attainment of maturity (personal observation; A. Yamaguchi, personal communication). Platyrhina tangi, on the other hand, reaches sexual maturity at a greater size, 50 % of specimens (393 mm TL, males and 421 mm TL, females) being sexually mature (Yamaguchi & Kume 2009). FIGURE 4. Relationships of preorbital snout length (A) and preoral snout length (B) to total length in Platyrhina: P. s i n e n s i s, P. tangi sp. nov. and P. hyugaensis sp. nov., male and female respectably. Regression equations of (A), S: P. s i n e n s i s (male and female), y= 0.155 x��� 0.765, R 2 = 0.97; T: P. tangi (male and female), y= 0.125 x+ 1.253, R 2 = 0.98; H: P. hyugaensis (male and female), y= 0.089 x+ 7.264, R 2 = 0.97; all PP. s i n e n s i s (male and female), y= 0.151 x+ 4.753, R 2 = 0.97; T: P. tangi (male and female), y= 0.130 x+ 0.901, R 2 = 0.98; H: P. hyugaensis (male and female), y= 0.099 x+ 4.691, R 2 = 0.98; all PEtymology. The specific name, ��� hyugaensis ���, is proposed for this species, reflecting our belief that it is endemic and common to the Hyuga Nada Sea. Remarks. According to local divers in Miyazaki, Platyrhina hyugaensis sp. nov. often occurs on very shallow sandy bottoms, in depths as shallow as ca. 1 m, in the summer season off the Nichinan Coast, Miyazaki, whereas P. tangi sp. nov. is usually deeper in (discernible by yellow spots on the dorsal surfice easily) ca. 10��� 30 m., Published as part of Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro & Zhang, Jie, 2011, A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species, pp. 26-40 in Zootaxa 2738 on pages 30-34, DOI: 10.5281/zenodo.201522, {"references":["Iwatsuki, Y., Kimura, S. & Yoshino, T. (2002) A new species: Gerres microphthalmus (Perciformes: Gerreidae) from Japan with notes on limited distribution, included in the \" G. filamentosus complex \". Ichthyological Research, 49 (2), 133 - 139.","Iwatsuki, Y., Kimura, S. & Yoshino, T. (2007) A review of the Gerres subfasciatus complex from the Indo-West Pacific, with three new species (Perciformes: Gerreidae). Ichthyological Research, 54, 168 - 185.","Katayama, M. & Taki, Y. (1984) Lates japonicus, a new centropomid fish from Japan. Japanese Journal of Ichthyology, 30 (4), 361 - 367.","Randall, J. E. & Yamakawa, T. (1996) Two new soldierfishes (Beryciformes: Holocentridae: Myripristis) from Japan. Ichthyological Research, 43 (3), 211 - 222.","Iwatsuki, Y., Tashiro, K. & Hamasaki, T. (1993) Distribution and fluctuations in occurrence of a Japanese centropomid fish, Lates japonicus. Japanese Journal of Ichthyology, 40, 327 - 332.","Kuniji, H. (ed) (1985) Coastal oceanography of the Japanese Islands. Tokai Univ Press, Tokyo, Japan, xxii + 839 pp.","Yamaguchi, A. & Kume, G. (2009) Reproductive biology of the fanray, Platyrhina sinensis (Batoidea: Platyrhinidae) in Ariake Bay, Japan. Ichthyological Research, 56 (2), 133 - 139."]} more...
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9. Platyrhina sinensis Bloch and Schneider 1801
- Author
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Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro, and Zhang, Jie
- Subjects
Rhinobatidae ,Platyrhina ,Rajiformes ,Platyrhina sinensis ,Animalia ,Biodiversity ,Chordata ,Taxonomy ,Elasmobranchii - Abstract
Platyrhina sinensis (Bloch and Schneider 1801) New English name: Amoy Fanray Figs. 1 A���C, 4, 5; Table 1 Rhina sinensis Bloch and Schneider, 1801: 352 (type locality: China; drawing of Lacep��de, 1801: 157, fig. 2, no type known, see Fig. 1 A). Platyrhina sinensis M��ller and Henle, 1841: 125 (type locality: Japan and China, latter locality erroneous, correctly Vietnam [R. Causse, personal communication]; in part [MNHN 0000- 1307; 1 of 3 specimens]; see Remarks; redescription). S��ret and McEachran, 1986: 37 (Tourane [current Da Nang], Vietnam). Platyrhina limboonkengi Tang, 1933: 561, pl. 42, figs. 1���2 (type locality: Amoy, China); Fowler, 1941: 330 (China); Chu, 1960: 136, fig. 125, 129 (China); Chu and Wu, 1984: 64, fig. 36 (South China Sea, Taiwan Strait and southern East China Sea); Compagno, 1999: 486 (China and Vietnam); Carvalho, 2004: 77, fig. 9 C (South and East China Sea, western Pacific Ocean). New Synonymy. Neotype. ASIZB 47094, 204 mm TL, male, off Guangdong, China, 5 Jan. 1965. Other specimens (206���505 mm TL, n = 6). ASIZB 31954, female, 505 mm TL, off Guangdong, China, Nov. 1954; ASIZB 48972, male, 430 mm TL, off Guangdong, China, 2 Feb. 1956; ASIZB 50280, female, 206 mm TL, off Foochow, China, Oct. 1956; ASIZB 182251 (only used for photographs), male, 350 mm TL, off Amoy, China, coll. J. Zhang, 26 july 2009; ASIZB 182256 (only used for photographs), female, 455 mm TL, off Amoy, China, coll. J. Zhang, 26 july 2009; MNHN 0000- 1307 (1 of 3 specimens), male, 421 mm TL, Vietnam, coll. Eydoux and Souleyet. Data from Tang (1933), used in Fig. 4 and Table 1, were taken from the following: ZMUA 280 (holotype of Platyrhina limboonkengi), male, 447 mm TL, Amoy, China; ZMUA 281 (3 paratypes of P. limboonkengi), males, 406���456 mm TL, Amoy, China, 6 Aug. 1933; ZMUA 281 (paratype of P. limboonkengi), female, 517 mm TL, Amoy, China, 6 Aug. 1933. The following provided extra distributional data: Do Son Marine Museum of Vietnam Academy for Science and Technology, Institute of Marine Environment and Resources 16019 - 104, female, male and unknown sex (damaged), 3 specimens, ca. 250���500 mm TL, Ky xuan, Ha Tinh Province, north of Danan, Vietnam, 16 Mar. 1976. Diagnosis. Distinguished from congeners in having the following combination of characters: two rows of thorns (strongly hooked and gradually becoming somewhat embedded toward first dorsal fin origin) on mid-dorsum of tail; thorns absent from anterior part of scapular region (Fig. 1 B); thorns on the orbital, nape and scapular regions not encircled by light yellow or white pigment (Fig. 1 B); dorsal surface covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles (smooth to touch). Description. Counts and proportional measurements of the neotype, four non-type specimens of Platyrhina sinensis and five type specimens of P. limboonkengi (Tang 1933) are shown in Table 1. Data for the neotype are presented first, followed by those of other specimens in parentheses. Disk broadly wedge-shaped, snout tip slightly angular, outer margins broadly rounded, free rear tip reaching or slightly beyond level of cloaca; preorbital and preoral snout lengths 15 % (15���16 %) of TL and 17 % (15���19 %) of TL, respectively (Fig. 4); pelvic fins rounded (free rear tips angled), originating from abdominal surface at end of pectoral fins; tail shark-like, length greater than disc length, 57 % (52���60 %) of TL, abruptly narrower than disc width, lacking a caudal spine, abdominal surface flat with shallow groove along mid-abdominal axis; one row of thorns on mid-dorsum of nape to tail origin; two rows of thorns on mid-dorsum of tail origin to second dorsal fin origin; dermal-lateral folds on tail, originating well anterior to free rear tip of pelvic fin, reaching just behind caudal fin origin; two widely separated dorsal fins on tail, similar in size and shape, moderately large, anterior margins slightly convex with convex hind margin; first dorsal fin originating 1.3 (1.2���1.4) times maximum disc width from snout tip, well behind free rear tips of pelvic fins but anterior to mid-length of tail; second dorsal fin originating 1.5 (1.3���1.5) times maximum disc width from snout tip; interdorsal space equal to (1.0��� 1.2 times) first dorsal fin base length, 6 (5���7) thorns on mid-dorsum; caudal fin relatively small, flat, oval, sometimes forming small lobe posterodorsally, dorsal margin length 1.1 (1.1���1.2) times abdominal margin length; head moderately elongate; snout moderately long, soft, flexible; eyes moderately large, not elevated or protruding; spiracles broadly leaf-shaped, 0.7 (0.8 ���1.0) times eye length, originating beside eyes; nostrils moderately large, nasal flap skirt-shaped; anterior aperture circular, lower part surrounded by short folds; mouth width moderate, upper and lower jaws arched, skin grooves around mouth; oral teeth small, rhomboid, slightly pointed in males, over 56 (58���80) regular rows on lower jaw (increasing with growth), upper and lower jaw teeth similar in shape and size; five pairs of gill openings, two anteriormost widely separated, distance between second to fifth gradually becoming narrower posteriorly; 4 (4���5) thorns (strongly hooked) around on orbits; two pairs of two (total eight, Fig. 1 B) symmetrical thorns on scapular region; thorns absent anteriorly on scapular region (Fig. 1 B); thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment (Fig. 1 B); claspers of mature males greatly elongated; entire body and fins covered with minute dermal denticles of uniform size and shape, no obvious larger dermal denticles on dorsal surface (smooth to touch); irregular small thorns aggregated on anterodorsal margin of disk from snout tip to maximum disc width. Color of fresh specimens. Based on 2 non-type specimens (ASIZB 182251 and 182256) photographed by J. Zhang: dorsal surface often dark brown, darker medially; dorsal and caudal fins brown; hooked thorns on dorsal surface whitish; abdominal surface whitish, posterior margins of pectoral and ventral fins broadly grayish-brown. Color of preserved specimens. Based on neotype (ASIZB 47094) and 4 non-type specimens (ASIZB 31954, 48972 and 50280; MNHN 0000- 1307) photographed by J. Zhang and Y. Iwatsuki, respectively: dorsal surface often dark brown, darker medially; abdominal surface light brown. Distribution. Platyrhina sinensis is currently known from Amoy, from the Chinese coast of Taiwan Strait and in the South China Sea to northern Vietnamese waters (north of Danan, personal research). It has not been confirmed from Japanese, South Korean or Taiwanese waters, although it likely inhabits the last-mentioned (Fig. 5). Ecological note. The species has been captured in shallow coastal waters. However, nothing further is known of its ecology. Remarks. Rhina sinensis Bloch and Schneider 1801 was based on a drawing by Lacep��de (1801: 26, pl. 2, fig. 2, vernacular name ��� RAIE Chinoise���; see Fig. 1 A). Thus, there are no type specimens. The drawing appears to show two clear rows of thorns on the mid-dorsum of the tail (Fig. 1 A, indicated by red arrows), a feature found in Platyrhina limboonkengi Tang 1933, although the correct thorn pattern on the dorsal surface of the nape and scapular region is poorly represented, being illustrated as scattered thorns (Fig. 1 A). Subsequently, M��ller and Henle (1841) redescribed Bloch and Schneider���s (1801) species as Platyrhina sinensis, utilizing three additional specimens: MNHN 0000- 1307, male, 421 mm TL, Vietnam, collected by Eydoux and Souleyet and RMNH D (dried) 2696���2697 (females), 445���585 mm TL, Japan, collected by D. W. B��rger. However, RMNH D. 2696���2697 clearly have one row of thorns on the mid-dorsum of the tail, compared with two in MNHN 0000- 1307. Because Plate 44 in M��ller and Henle (1841) shows one row of such thorns, many subsequent researchers, including Richardson (1846), Temminck and Schlegel (1850), Bleeker (1853), Jordan and Hubbs (1925), Tang (1933), Fowler (1930), Matsubara (1955), Chu (1960), Compagno and Last (1999), Zhu and Meng (2001) and Hatooka (2002), have considered that character as diagnostic for P. s i n e n s i s. It is our contention that the specimens so (erroneously) diagnosed in fact represented an undescribed species of Platyrhina (described herein as P. tangi sp. nov.). The original description of P. limboonkengi (Tang 1933) was based on five type specimens (holotype and four paratypes, 406���517 mm TL; see Table 1) at ZMUA, all apparently now lost. Nevertheless, there being no features that sufficiently differentiate P. limboonkengi from P. sinensis, the former is here considered a junior synonym of the latter. ASIZB 47094 (204 mm TL) is here designated as the neotype of Rhina sinensis Bloch and Schneider 1801 in order to avoid further confusion caused by the absence of type specimens. The combination Discoides sinensis, introduced by Temminck and Schlegel (1850), has no taxonomic value and has been adequately covered by Eschmeyer (1998, 2010 on-line version)., Published as part of Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro & Zhang, Jie, 2011, A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species, pp. 26-40 in Zootaxa 2738 on pages 27-30, DOI: 10.5281/zenodo.201522, {"references":["Bloch, M. E. & Schneider, J. G. (1801) Systema Ichthyologiae iconibus cx illustratum. Post obitum auctoris opus inchoatum absolvit, correxit, interpolavit Jo. Gottlob Schneider, Saxo. Berolini. Sumtibus Auctoris Impressum et Bibliopolio Sanderiano Commissum. Systema Ichthyologiae, Belodini, Germany, lx + 584 pp., 110 pls.","Lacepede, B. G. E. (1801) Histoire naturelle des poissons. Histoire naturelle des poissons, 3, i - lxvi + 1 - 558, pls. 1 - 34.","Muller, J. & Henle, F. G. J. (1841) Systematische Beschreibung der Plagiostomen. Viet und Comp, Berlin, xxii + 200 pp., 60 pls.","Seret, B. & McEachran, J. D. (1986) Catalogue critique des types de Poissons du Museum national d'Histoire naturelle. (Suite) Poissons Batoides (Chondrichthyes, Elasmobranchii, Batoidea). Bulletin du Museum National d'Histoire Naturelle, Ser. 4, Section A, 8 (4), 3 - 50.","Tang, D. - S. (1933) On a new ray (Platyrhina) from Amoy, China. Lingnan Science Journal, 12 (4), 561 - 563.","Fowler, H. W. (1941) Contributions to the biology of the Philippine Archipelago and adjacent regions. The fishes of the groups Elasmocephalii, Holocephali, Isospondyli, and Ostariophysi obtained by the United States Bureau of Fisheries Steamer \" Albatross \" in 1907 to 1910, chiefly in the Philippine Islands and adjacent waters. Bulletin of the United States National Museum, No. 100, 13, 1 - 879.","Chu, Y. - T. (1960) Cartilaginous fishes of China. Science Press, Beijing, China, x + 225 pp.","Chu, Y. - T. & Wu, H. - L. (1984) Fishes of Fujian Province. Part 1. Fujian Science & Technology Press, Fujian, China, 528 pp.","Carvalho, M. R. de (2004) A Late Cretaceous thornback ray from southern Italy, with a phylogenetic reappraisal of the Platyrhinidae (Chondrichthyes: Batoidea). In: Arratia, G. and Tintori, A. (eds), Mesozoic fishes, Vol. 3. Systematics, palaeoenvironments and Biodiversity. Verlag Dr. Friedrich Pfeil, Munchen, pp. 75 - 100.","Richardson, J. (1846) Report on the ichthyology of the seas of China and Japan. Report of the British Association for the Advancement of Science 15 th meeting, 187 - 320.","Temminck, C. J. & Schlegel, T. (1850) Pisces. Fauna Japonica, sive descriptio animalium quae in itinereper Japoniam suscepto annis 1823 - 30 collegit, notis observationibus et adumbrationibus illustravit P. F. de Siebold. Fauna Japonica, Part 15, 270 - 324.","Bleeker, P. (1853) Bijdrage tot de kennis der ichthyologische fauna van Japan. Verhandelingen der Koninklijke Akademie van Wetenschappen (Amsterdam), 1, 1 - 16.","Jordan, D. S. & Hubbs, C. L. (1925) Record of fishes obtained by David Starr Jordan in Japan, 1922. Memoirs of the Carnegie Museum, 10 (2), 93 - 346.","Fowler, H. W. (1930) A synopsis of fishes of China. Hong Kong Naturalist, 1, 129 - 134.","Matsubara, K. (1955) Fish morphology and hierarchy, Part I. Ishizaki-shoten, Tokyo, Japan, 789 pp.","Compagno, L. J. V. & Last, P. R. (1999) Platyrhinidae. In: Carpenter, K. E. & Niem, V. H. (eds), FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol 3 Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linopharynidae), FAO, Rome, pp. 1431 - 1432.","Zhu, H. - F. & Meng, Q. - W. (2001) Family Platyrhinidae. In: Zhu, H. - F. & Meng, Q. - W. (eds), Fauna Sinica, Cyclostomata and Chondrichthyes. Science Press, Beijing, China, pp. 362 - 366.","Hatooka, K. (2002) Platyrhinidae. In: Nakabo, T. (ed), Fishes of Japan with pictorial keys to the species, English edition. Tokai University Press, Tokyo, Japan, p. 161.","Eschmeyer, W. N. (ed) (1998, 2010 on-line version) Catalog of Fishes. Center for Biodiversity Research and Information, Special Publish 1. California Academy of Sciences, 1 - 3, 1 - 2905. California Academy of Sciences, San Francisco, California. Available from: http: // research. calacademy. org / ichthyology / catalog / fishcatmain. asp (accessed 14 May 2010)."]} more...
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10. Platyrhina tangi Iwatsuki, Zhang and Nakaya, sp. nov
- Author
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Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro, and Zhang, Jie
- Subjects
Rhinobatidae ,Platyrhina ,Rajiformes ,Animalia ,Biodiversity ,Chordata ,Platyrhina tangi ,Taxonomy ,Elasmobranchii - Abstract
Platyrhina tangi Iwatsuki, Zhang and Nakaya sp. nov. New English name: Yellow-spotted Fanray Japanese name: Uchiwazame Figs. 2 C���D, 3 D���F, 4, 5; Table 1 Platyrhina sinensis (not of Bloch and Schneider); M��ller and Henle, 1841: 125, pl. 44 (type locality: Japan and China [see comments under Synonymy of Platyrhina sinensis]; in part, RMNH D. 2696 ���D. 2697; see Remarks); Richardson, 1846: 196 (Canton, China asYellow spotted ray); G��nther, 1870: 471 (China, probably same specimen examined by Richardson above; noted ���A row of spines along the median line of the back and tail���); Fowler, 1930: 134, fig. 17 (Japan); Fowler, 1941: 329 (China and Japan); Matsubara, 1955: 135 (China Sea and central Honshu southward, Japan); Chyung, 1977: 90, pls. 16 -2, 16-3, 16- 4 (southern Korea); Shen, 1984: 4, pl. 4-8 - 1 (Taiwan); Nakaya, 1984: 12, pl. 13 -H (southern Japan to China Sea); Chu and Wu, 1984: 63, fig. 35 (China, southwestern Korea, southern Japan, South China Sea, Taiwan Strait, East China Sea and Yellow Sea); Chen, 1997: 7, unnumbered color photograph (South China Sea to Yellow Sea, western Pacific); Compagno and Last, 1999: 1432 (northwestern Pacific); Hatooka, 2002: 161 (southern Japan and East China Sea); Carvalho, 2004: 77, fig. 2 A, 9 A (South and East China Sea, western Pacific Ocean); Compagno et al., 2005: 63 (northwestern Pacific). Discobatus sinensis: Temminck and Schlegel, 1850: 307 (Nagasaki, Japan); Snyder, 1912: 401 (Tokyo, Japan); Garman, 1913: 289, pls. 56, 66, fig. 8 (Japan); Tanaka, 1951: 17, fig. 30 (southern Japan and southern China); Cheng, 1955: 30, fig. 21 (Port Arthur, Peitaiho, Chefoo and Qingdao, China). Holotype. MUFS 23163, male, 398 mm TL, Meitsu, Miyazaki, Japan (31 �� 32 ��� 12 ���N, 131 �� 24 ��� 16 ���E), set net, coll. K. Miyamoto and Y. Iwatsuki, 27 June 2007. Paratypes (90���637 mm TL, n = 13). KPM-NI 2488 and 3616, 2 females, 434 and 637 mm TL, Mera, Kamogun, Shizuoka, Japan, set nets; KPM-NI 3205, male, 540 mm TL, Mera, Kamo-gun, Shizuoka, Japan, set nets; MUFS 23565 and 23718, female, 570 and 90 mm TL, Meitsu, Nango-cho, Miyazaki, Japan, set net, coll. K. Miyamoto, 21 Nov. 2007; MUFS 23717, male, 116 mm TL, Meitsu, Nango-cho, Miyazaki, Japan, set net, coll. K. Miyamoto, March 2008; MUFS 23727, male, 525 mm TL, Iorigawa, Kadokawa Bay, Miyazaki, Japan, set net, coll. H. Izumi; FFNU-P-00006, FFNU-P-00007, 2 males, 328 and 341 mm TL, off Shimabara, Nagasaki, Japan, trawls; FFNU-P-00005, FFNU-P-00008, FFNU-P-00009 and FFNU-P-00010, 4 females, 303���536 mm TL, off Shimabara, Nagasaki, Japan, trawls. Non-type specimens (149���640 mm TL, n = 20). MUFS 14132, female, 238 mm TL, Meitsu, Nango-cho, Miyazaki, Japan; MUFS 18295, female, 161 mm SL, off Aoshima, Miyazaki, Japan, trawls; MUFS 18314, male, 149 mm TL, Totoro, Nobeoka, Miyazaki, Japan; MUFS 23500, 23516 and 23546 ���23547, 4 males, 430���480 mm TL, Meitsu, Nango-cho, Miyazaki, Japan, set nets; MUFS 22500, 23517���23519, 23520���23521, 23548���23550, 23594���23595, 11 females, 90���640 mm TL, Meitsu, Nango-cho, Miyazaki, Japan, set nets; RMNH D 2696 ���D2697, 2 females, 445���585 mm TL, coll. B��rger, Japan. Diagnosis. Distinguished from congeners in having the following combination of characters: one row of thorns (weakly hooked, sometimes tubercle-like) on mid-dorsum of tail; thorns absent from anterior part of scapular region (Fig. 3 E); thorns on the orbital, nape and scapular regions encircled by light yellow or white pigment (Figs. 2 C���D, 3 D���F); dorsal surface covered with minute and some clearly larger dermal denticles (coarse to touch). Description. Counts and proportional measurements of the holotype, 13 paratype and 20 non-type specimens of Platyrhina tangi sp. nov. are shown in Table 1. Data for the holotype are presented first, followed by those of other specimens in parentheses. Disk broadly wedge-shaped, snout tip slightly angular, outer margins broadly rounded, free rear tip reaching or slightly beyond level of cloaca; preorbital and preoral snout lengths 14 % (11���14 %) of TL and 13 % (11���14 %) of TL, respectively (Fig. 4); pelvic fins rounded (free rear tips angled), originating from abdominal surface at end of pectoral fins; tail shark-like, length greater than disc length, 57 % (54���63 %) of TL, abruptly narrower than disc width, lacking a caudal spine, abdominal surface flat with shallow groove along mid-abdominal axis; one row of thorns (weakly hooked, sometimes tubercle-like) on mid-dorsum of nape to second dorsal fin origin; dermal-lateral folds on tail, originating well anterior to free rear tip of pelvic fin, reaching just behind caudal fin origin; two widely separated dorsal fins on tail, similar in size and shape, moderately large, anterior margins slightly convex with convex hind margin; first dorsal fin originating 1.2 (1.2���1.5) times maximum disc width from snout tip, well behind free rear tips of pelvic fins but anterior to mid-length of tail; second dorsal fin originating 1.4 (1.4���1.7) times maximum disc width from snout tip; interdorsal space 1.1 (0.9���2.1) times first dorsal fin base length, 2 (1���2) thorns on mid-dorsum; caudal fin relatively small, flat, oval, sometimes forming small lobe posterodorsally, dorsal margin length 1.0 (0.9���1.1) times abdominal margin length; head moderately elongate; snout moderately long, soft, flexible; eyes moderately large, not elevated or protruding; spiracles leaf-shaped, 1.4 (0.9���1.6) times eye length, originating beside eyes; nostrils moderately large, nasal flap skirt-shaped; anterior aperture circular, lower part surrounded by short folds; mouth width moderate, upper and lower jaws arched, skin grooves around mouth; oral teeth small, rhomboid, slightly pointed in males, over 66 (56���127) regular rows on lower jaw (increasing with growth), upper and lower jaw teeth similar in shape and size; five pairs of gill openings, two anteriormost widely separated, distance between second to fifth gradually becoming narrower posteriorly; 5 (3���5) thorns (weakly hooked or tubercle-like) around on orbits; two pairs of two (total eight) symmetrical thorns on scapular region; 2 (0���11) subsequent irregular small thorns on two pairs of two symmetrical thorns (Fig. 3 E, indicated by black arrows); thorns absent anteriorly on scapular region (Fig. 3 E); thorns on the orbital, nape and scapular regions encircled by light yellow or white pigment (same in the above irregular thorns) (Figs. 2 C���D, 3 D���F); claspers of mature males greatly elongated; entire body and fins covered with minute dermal denticles, some clearly larger dermal denticles on dorsal surface (coarse to touch); irregular small thorns aggregated on anterodorsal margin of disk from snout tip to maximum disc width. Color of fresh specimens. Based on holotype (MUFS 23163) and 5 paratypes (MUFS 18295, 23500, 23516 and 23546���23547) photographed by K. Miyamoto and Y. Iwatsuki: dorsal surface often brown, darker medially; dorsal and caudal fins brown; abdominal surface whitish, outer margins of pectoral and ventral fins broadly grayish-brown. Color of preserved specimens. Dorsal surface often brown, darker medially; dorsal and caudal fins brown; abdominal surface whitish, outer margins of pectoral and ventral fins broadly grayish-brown. Distribution. Platyrhina tangi sp. nov. is currently known from southern Japan (except the Ryukyu and Ogasawara Islands), southern Korea, China, Taiwan and northern Vietnam (Fig. 5), but seems to be very rare in the Sea of Japan (Y. Kai, personal communication). Ecological notes. Kume et al. (2008), who studied the vertebral centra of P. s i n e n s i s (= P. tangi sp. nov.), suggested that females attained a greater asymptotic total length (555.8 mm TL) and grew more slowly than males (455.2 mm TL) (based on specimens from Ariake Bay, western Kyushu Island, Japan). The maximum ages observed were 5 years (males) and 12 years (females). Furthermore, Yamaguchi and Kume (2009) reported that females reached sexual maturity at a greater size than males (total length at 50 % sexual maturity: males, 393 mm; females, 421 mm). Parturition occurred from August to November followed immediately by mating, ovulation and fertilization. Fowler (1941) reported the largest specimen yet recorded (USNM 51295, 680 mm TL, Tokyo, sex unknown) of the species, the largest specimens examined during this study having been collected from the Hyuga Nada Sea (female, 639 mm TL; male, 525 mm TL). However, the species is likely to grow larger than ca. 700 mm TL according to local Miyazaki fishermen. Etymology. The specific name, ��� tangi ���, is proposed in honor of the Chinese ichthyologist D.-S. Tang. Remarks. For erroneous identification of Platyrhina tangi sp. nov., see Remarks under P. s i n e n s i s., Published as part of Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro & Zhang, Jie, 2011, A review of the genus Platyrhina (Chondrichthys: Platyrhinidae) from the northwestern Pacific, with descriptions of two new species, pp. 26-40 in Zootaxa 2738 on pages 37-38, DOI: 10.5281/zenodo.201522, {"references":["Muller, J. & Henle, F. G. J. (1841) Systematische Beschreibung der Plagiostomen. Viet und Comp, Berlin, xxii + 200 pp., 60 pls.","Richardson, J. (1846) Report on the ichthyology of the seas of China and Japan. Report of the British Association for the Advancement of Science 15 th meeting, 187 - 320.","Gunther, A. (1870) Catalogue of the fishes in the British Museum. Catalogue of the Physostomi, containing the families Gymnotidae, Symbranchidae, Muraenidae, Pegasidae, and of the Lophobranchii, Plectognathi, Dipnoi, Ganoidei, Chondropterygii, Cyclostomata, Leptocardii, in the British Museum. Catalogue of the fishes in the British Museum. 8, i - xxv + 1 - 549.","Fowler, H. W. (1930) A synopsis of fishes of China. Hong Kong Naturalist, 1, 129 - 134.","Fowler, H. W. (1941) Contributions to the biology of the Philippine Archipelago and adjacent regions. The fishes of the groups Elasmocephalii, Holocephali, Isospondyli, and Ostariophysi obtained by the United States Bureau of Fisheries Steamer \" Albatross \" in 1907 to 1910, chiefly in the Philippine Islands and adjacent waters. Bulletin of the United States National Museum, No. 100, 13, 1 - 879.","Matsubara, K. (1955) Fish morphology and hierarchy, Part I. Ishizaki-shoten, Tokyo, Japan, 789 pp.","Chyung, M. - K. (1977) The fishes of Korea. Ilchisa, Seoul, 727 pp., 238 pls.","Shen, S. - C. (1984) Synopsis of fishes of Taiwan. Southern Materials Center Publishing Incorporated, Taipei, 553 pp.","Nakaya, K. (1984) Family Platyrhinidae. In: Masuda, H., Amaoka, K., Araga, C., Uyeno, T. & Yoshino, T., The fishes of the Japanese Archipelago. Tokai University Press, Tokyo, p. 12, pl. 13 - H.","Chu, Y. - T. & Wu, H. - L. (1984) Fishes of Fujian Province. Part 1. Fujian Science & Technology Press, Fujian, China, 528 pp.","Chen, Q. - C., Cai, Y. - Z. & Ma, X. - M. (eds) (1997) Fishes from Nansha Islands to South China coastal waters 1. Science Press, Beijing, China, xx + 202 pp.","Compagno, L. J. V. & Last, P. R. (1999) Platyrhinidae. In: Carpenter, K. E. & Niem, V. H. (eds), FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol 3 Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linopharynidae), FAO, Rome, pp. 1431 - 1432.","Hatooka, K. (2002) Platyrhinidae. In: Nakabo, T. (ed), Fishes of Japan with pictorial keys to the species, English edition. Tokai University Press, Tokyo, Japan, p. 161.","Carvalho, M. R. de (2004) A Late Cretaceous thornback ray from southern Italy, with a phylogenetic reappraisal of the Platyrhinidae (Chondrichthyes: Batoidea). In: Arratia, G. and Tintori, A. (eds), Mesozoic fishes, Vol. 3. Systematics, palaeoenvironments and Biodiversity. Verlag Dr. Friedrich Pfeil, Munchen, pp. 75 - 100.","Compagno, L. J. V., Last, P. R., Stevens, J. D. & Alava, M. N. R. (2005) Checklist of Philippine Chondrichthyes. CSIRO Marine Laboratories Report No. 243. CSIRO, Collingwood, Australia, 103 pp.","Temminck, C. J. & Schlegel, T. (1850) Pisces. Fauna Japonica, sive descriptio animalium quae in itinereper Japoniam suscepto annis 1823 - 30 collegit, notis observationibus et adumbrationibus illustravit P. F. de Siebold. Fauna Japonica, Part 15, 270 - 324.","Snyder, J. O. (1912) Japanese shore fishes collected by the United States Bureau of Fisheries steamer \" Albatross \" expedition of 1906. Proceedings of the United States National Museum, 42 (1909), 399 - 450.","Garman, S. (1913) The Plagiostomia (sharks, skates and rays). Memoirs of the Museum of Comparative Zoology, 36, 1 - 515.","Tanaka, S. (1951) Dr. Tanaka's Japanese fishes in life colours. Kazamashobo, Tokyo, xxi + 203 pp., 138 pls.","Cheng, Q. - T. (ed) (1955) The investigation report on the fishes of the Bohai Sea and Yellow Sea. Science Press, Beijing, China, 389 pp., 206 figs.","Kume, G., Furumitsu, K. & Yamaguchi, A. (2008) Age, growth and age at sexual maturity of fan ray Platyrhina sinensis (Batoidea: Platyrhinidae) in Ariake Bay, Japan. Fisheries Science, 74, 736 - 742.","Yamaguchi, A. & Kume, G. (2009) Reproductive biology of the fanray, Platyrhina sinensis (Batoidea: Platyrhinidae) in Ariake Bay, Japan. Ichthyological Research, 56 (2), 133 - 139."]} more...
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11. Platyrhina
- Author
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Iwatsuki, Yukio, Miyamoto, Kei, Nakaya, Kazuhiro, and Zhang, Jie
- Subjects
Rhinobatidae ,Platyrhina ,Rajiformes ,Animalia ,Biodiversity ,Chordata ,Taxonomy ,Elasmobranchii - Abstract
Key to species of Platyrhina from the northwestern Pacific 1 a. 1 row of hooked thorns on mid-dorsum of tail............................................................... 2 1 b. 2 (rarely 3 irregular rows anteriorly) rows of hooked thorns on mid-dorsum of tail........................... P. sinensis 2 a. Hooked thorns on orbital, nape and scapular regions not encircled by light yellow or white pigment (Fig. 2 A–B); a pair of thorns anteriorly on scapular region (Fig. 3 B, indicated by white arrows).................................................................................................. P. hyugaensis Iwatsuki, Miyamoto and Nakaya sp. nov. 2 b. Hooked thorns on orbital, nape and scapular regions encircled by light yellow or white pigment (Fig. 2 C–D); a pair of thorns absent anteriorly on scapular region (Fig. 3 E)........................... P. ta n g i Iwatsuki, Zhang and Nakaya sp. nov. more...
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