日本での分布が再確認されたホラアナゴ科魚類ユキホラアナゴ（新称）Ilyophis nigeli

抄録

Ninety-nine synaphobranchid specimens, collected from Japanese waters between Hokkaido and Fukushima Prefectures, were identified as Ilyophisnigeli Shcherbachev and Sulak in Sulak and Shcherbachev, 1997 on the basis of the following combination of characters: body scaled; 5 or 6 supraorbital pores; 1or 2 frontal pores; 140-152 total vertebrae; 80-113 total lateral line pores, lateral line ending well anterior to tip of tail; and gill slits horizontal or slightly oblique. Originally described from nine specimens collected from the Pacific slope off Japan, the species, which has been overlooked by Japanese ichthyologists, is redescribed on the basis of the newly-collected specimens. A new standard Japanese name, “Yuki-hora-anago” is proposed for the species.