rostratus, Bathytroctes Günther [A.] 1878:250 [23] [Annals and Magazine of Natural History (Series 5) v. 2 (nos 7/8/9)(art. 2/22/28); ref. 2010] Off Pernambuco, 8°33'S, 34°30'W, Challenger station 120, depth 675 fathoms. Holotype (unique): BMNH 1887.12.7.234. On p. 23 of separate. See also Günther 1887:227, Pl. 58 (fig. B) [ref. 2013]. •Valid as Holtbyrnia rostrata (Günther 1878) -- (Matsui & Rosenblatt 1987:63 [ref. 10670], Figueiredo & Menezes in Menezes et al. 2003:44 [ref. 27192]). •Valid as Bathytroctes rostratus Günther 1878 -- (Randall & Lim in Randall & Lim 2000:590 [ref. 25122] as Bathtroctes, Parin et al. 2014:111 [ref. 33547]). •Valid as Mentodus rostratus (Günther 1878) -- (Krefft 1973:97 [ref. 7166], Sazonov & Trunov 1978:92 [ref. 8882], Scott & Scott 1988:189 [ref. 25518], Shcherbachev et al. 1989:165 [ref. 36134] as Memtodus rostratus, McAllister 1990:75 [ref. 14674], Quéro et al. 1990:269 [ref. 14648], Sazonov et al. 1993:50 [ref. 21498], Sazonov 1999:1895 [ref. 24740], Savinykh & Balanov 1999:422 [ref. 24871], Sheiko & Fedorov 2000:18 [ref. 25650], Moore et al. 2003:181 [ref. 27076], Orrell & Hartel 2016:1781 [ref. 34567], Carneiro et al. 2019:81 [ref. 37250], Bañón & Maño 2021:53 [ref. 38883], Fermon et al. 2022:133 [ref. 39448] possible, Page et al. 2023:63 [ref. 40505]). Current status: Valid as Mentodus rostratus (Günther 1878). Platytroctidae. Distribution: Circumglobal. Habitat: marine.