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A new genus, Leptomelanosoma, for the polynemid fish previously known as Polydactylus indicus (Shaw, 1804) and a redescription of the species Motomura, Hiroyuki 111567 本村, 浩之 Iwatsuki, Yukio 111568 岩槻, 幸雄 487 Polynemidae New genus Redescription Leptomelanosoma indicum A new genus, Leptomelanosoma, is proposed for the polynemid fish, Polydactylus indicus (Shaw, 1804). The genus differs from all other genera in the family Polynemidae by the following combination of characters: anterior one-third of lower jaw with small teeth extending onto lateral surface, adjacent portion of lip poorly developed; ethmoid not covered dorsally by frontals; sphenotics visible dorsally between anterior margins of parietal and pterotic; upper and lower caudal fin lobes very long, filamentous; swimbladder with many appendages inserted into lateral walls of abdominal cavity; grayish-black body. The type species, Polydactylus indicus, is redescribed as Leptomelanosoma indicum. journal article 日本魚類学会 The Ichthyological Society of Japan 2001-03-25 VoR application/pdf Ichthyological research 1 48 13 21 13418998 AA11077079 https://ir.kagoshima-u.ac.jp/record/11694/files/2001_03_Leptomelanosoma-new genus.pdf http://hdl.handle.net/10232/21804 https://ir.kagoshima-u.ac.jp/records/11694 jpn open access