A New Species of Rhinogobius Gill, 1859 (Teleostel: Gobiidae) from the Bonin Islands, Japan

Toshjyuki Suzuki ； I-Shiung Chen ； Hiroshi Senou

《Journal of Marine Science and Technology》 19卷6期 (2011/12) Pp. 693-701

https://doi.org/10.6119/JMST.201112_19(6).0015

並列摘要

A new freshwater goby, Rhinogobius ogasawaraensis was collected from streams of the Bonin Islands (Ogasawara Group), Japan. The species can be distinguished from all congeneric species by the following combination of characters: (1) meristic features: second dorsal fin rays I, 8-9; pectoral tin rays 18-20; predorsal scales 7- 16; longitudinal scale rows usually 32-34; vertebral count 26; and (2) specific colouration: check with some red spots, nape with several longitudinal dark stripes, upper part of pectoral fin base with a horizontal deep brown bar, intermittent dark dotted rows along middle axis of body, no saddle shaped patch of dark dots on dorsal side of body, ventral side of body yellowish white, caudal tin with some dark dotted rows on middle region and the base with a pair of dark brown bars which vertically to each other. The ripe oocyte diameter of this new species suggests that it belongs to a member of typical amphidromous species.

並列關鍵字

Gobiidae ； Rhinogobius ogasawaraensis sp. nov. ； egg size ； amphidromous ； fish taxonomy ； West Pacific