琉球列島産珊瑚礁魚類の研究 : VIII.ウバウヲ科, Limnichthidae, トラギス科, イタチウヲ科, ヒラメ科, ササウシノシタ科
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概要
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I inclucle here all the fishes belonging to the families, Gobiesocidae, Limnichthidae, Parapercidae, Brotulidae, Bothidae and Soleidae, which are hitherto known from the coral reefs of the Riukiu Islands. These fishes contain fifteen species, including one new species, four of which are the additional species to the ichthyofauna of both Japan and the Riu-kiu Islands, as fllows: Limnichtlhys fasciatus WAITE Parapercis cylindrica (BLOCH) Monothrix polylepis OGILBY Dinematichthys riukiucnsis n. sp. Dinematichthys rinkiuensis n. sp. Total length 101.7mm; standard length 90.3mm. Depth 4.1 in length; head 3.5. Snout 4.1 in head; eye 9.3; interorbital space 3.2; depth of caudal peduncle 6.3; maxillary 2. D. 77; A. 61; V. 1. Scales in longitudinal series 127. Body cylindrical anteriorly, strongly compressed posteriorly; snout short, obtuse; maxillary extending backward for beyond hind margin of eye; eye exceedingly small, 2.8 in interorbital space; opercle with one short spine; tongue somewhat pointed; dorsal and anal not connected with caudal; caudal 10.9 in length, rounded; ventral close together, 4.2 in length, inserted on throat just before base of pectoral, but not reaching to anus; small, well-inbricated, cycloid scales covering body entirely; predorsal scales extending forward to above hind margin of preopercle; cheek covered with minute cycloid scales posteriorly; opercle, infraorbital and snout naked; jaws, vomers and palatines with bands of minute spine-like teeth. Color in formalin pale brown generally; fins pale. This new species closely resembles GUENTHER'S D. mizolepis. It is, however, distinguishable from the latter in having smaller eyes, a smaller number of dorsal rays and a large number of scales in the longitudinal series. I obtained one specimen, 101.7mm in length, at Ishigaki Island and eight specimens, 51.4mm to 83mm in length, at Okinawa-Honto. The above description was based upon the specimen collected at Ishigaki Island.
- 社団法人日本動物学会の論文
- 1952-08-15
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