macrurum, Ophisoma Gilbert [C. H.] 1891:351 [Proceedings of the United States National Museum v. 14 (no. 856); ref. 1625] Gulf of California, Mexico, 29°19'N, 112°50'W, Albatross station 3015, depth 145 fathoms. Holotype (unique): USNM 44294. Type catalog: Smith 1994:9-10 [ref. 21917]. •Valid as Ophisoma macrurum Gilbert 1891 -- (Bussing & López S. 1994:38 [ref. 23101]). •Valid as Bathycongrus macrurus (Gilbert 1891) -- (Raju 1985:15 [ref. 5287], Smith 1994:9 [ref. 21917], Smith in Fischer et al. 1995:1033 [ref. 22829], Nelson et al. 2004:64 [ref. 27807], Page et al. 2013:64 [ref. 32708], Love et al. 2021:38 [ref. 39279], Page et al. 2023:56 [ref. 40505], Fricke et al. 2024:131 [ref. 41622]). Current status: Valid as Bathycongrus macrurus (Gilbert 1891). Congridae: Congrinae. Distribution: Eastern Pacific: southern tip of Baja California Sur (Mexico) south to Colombia. Habitat: marine.