Promethichthys Gill [T. N.] 1893:115, 123 Masc. Prometheus atlanticus Lowe 1838 (= Gempylus prometheus Cuvier 1831). Type by being a replacement name. Replacement for Prometheus Lowe 1841, preoccupied by Prometheus Hübner 1824 in Lepidoptera Cossoidea. Spelled Prometheichthys by Jordan, Tanaka & Snyder 1913:122 [ref. 6448]. •Valid as Promethichthys Gill 1893 -- (Parin & Bekker 1973:459 [ref. 7206], Lindberg & Krasyukova 1975:251 [ref. 7348], Fujii in Uyeno et al. 1983:409 [ref. 14275], Collette et al. 1984:600 [ref. 11421], Nakamura in Masuda et al. 1984:227 [ref. 6441], Parin in Whitehead et al. 1986:971 [ref. 13676], Nakamura & Parin 1993:40 [ref. 21769], Nakamura & Parin 2001:3700 [ref. 26304], Parin & Nakamura 2003:1815 [ref. 27115], Bray & Hoese 2006:1756 [ref. 29049], Motomura et al. 2017:209 [ref. 35490], Fricke et al. 2018:360 [ref. 35805], Brown et al. 2019:172 [ref. 36444], Fricke et al. 2019:310 [ref. 36673]). Current status: Valid as Promethichthys Gill 1893. Gempylidae.