retropinna, Leptoderma Fowler [H. W.] 1943:55, Fig. 5 [Bulletin of the United States National Museum No. 100, v. 14 (pt 2); ref. 1441] Off Diuata Point, between Leyte and Mindanao, Philippines, 9°06'30"N, 125°00'20"E, Albatross station D5495, depth 976 fathoms. Holotype: USNM 99512. •Valid as Leptoderma retropinna Fowler 1943 -- (Machida in Masuda et al. 1984:43 [ref. 6441], Machida in Okamura & Kitajima 1984:137, 330 [ref. 8057] as retropinnum, Sazonov & Markle 1999:1893 [ref. 24739], Nakabo 2000:294 [ref. 25086] as retropinnum, Hutchins 2001:19 [ref. 25847] as cf. retrospinna [sic], Nakabo 2002:294 [ref. 26001] as retropinnum, Shinohara et al. 2005:403 [ref. 28370] as rectropinnum, Byrkjedal et al. 2011:49 [ref. 31301], Angulo et al. 2016:498 [ref. 34156], Senda et al. 2020:115 [ref. 37789] as cf. retropinna). Current status: Valid as Leptoderma retropinna Fowler 1943. Alepocephalidae. Distribution: Indo-West Pacific. Habitat: marine.