acrogeneius, Opaeophacus Bond [C. E.] & Stein [D. L.] 1984:523, Fig. 1 [Proceedings of the Biological Society of Washington v. 97 (no. 3); ref. 5310] Off Seguam Island, Bering Sea, 52°42'N, 172°15'W, depth 500-800 meters. Holotype: USNM 260320. Paratypes: CAS 52802 (1), OS 10000 (1), USNM 260321 (2, 1 c&s). Type catalog: Springer & Anderson 1997:13 [ref. 22953]. •Valid as Opaeophacus acrogeneius Bond & Stein 1984 -- (Anderson 1994:120 [ref. 21438], Mecklenburg et al. 2002:685 [ref. 25968], Anderson & Fedorov 2004:9 [ref. 27603], Love et al. 2005:145 [ref. 37547], Balushkin et al. 2011:1027 [ref. 32449], Parin et al. 2014:427 [ref. 33547], Love et al. 2021:185 [ref. 39279], Page et al. 2023:213 [ref. 40505]). Current status: Valid as Opaeophacus acrogeneius Bond & Stein 1984. Zoarcidae: Gymnelinae. Distribution: North Pacific: Aleutian Islands (U.S.A.) endemic. Habitat: marine.