opisthotremus, Careproctus Gilbert [C. H.] & Burke [C. V.] 1912:78, Fig. 23 [Bulletin of the Bureau of Fisheries v. 30 (Doc. 754) (for 1910); ref. 1634] South of Agattu Island, Aleutian Islands, Alaska, 52°01'N, 174°39'E, Albatross station 4780, depth 1046 fathoms. Holotype (unique): USNM 74385. •Valid as Careproctus opisthotremus Gilbert & Burke 1912 -- (Mecklenburg et al. 2002:622 [ref. 25968], Parin et al. 2002:S113 [ref. 28300], Chernova et al. 2004:12 [ref. 27592], Love et al. 2005:102 [ref. 37547], Parin et al. 2014:323 [ref. 33547], Love et al. 2021:137 [ref. 39279], Page et al. 2023:190 [ref. 40505]). Current status: Valid as Careproctus opisthotremus Gilbert & Burke 1912. Liparidae. Distribution: North Pacific: Bering Sea, vicinity of Aleutian Islands (U.S.A.). Habitat: marine.