jaok, Cottus Cuvier [G.] in Cuvier & Valenciennes 1829:172 [Histoire naturelle des poissons v. 4; ref. 998] Kamchatka coast, Russia. Holotype (unique): ZMB 31656. Type catalog: Blanc & Hureau 1968:60 [ref. 20738], Paepke & Fricke 1992:284 [ref. 19946]. •Valid as Myoxocephalus jaok (Cuvier 1829) -- (Watanabe 1960:75 [ref. 11959], Neelov 1979:122 [ref. 3152], Yabe in Masuda et al. 1984:327 [ref. 6441], Lindberg & Krasyukova 1987:212 [ref. 15964], Kim & Youn 1992:64 [ref. 22287], Sokolovsky & Sokolovskaya 1997:55 [ref. 24691], Sokolovskaya et al. 1998:10 [ref. 24670], Nakabo 2000:645 [ref. 25086], Sheiko & Fedorov 2000:28 [ref. 25650], Mecklenburg et al. 2002:481 [ref. 25968], Nakabo 2002:645 [ref. 26001], Choi et al. 2003:262, 576 [ref. 26218], Parin et al. 2002:S81 [ref. 28300], Fedorov et al. 2003:75 [ref. 27579], Nelson et al. 2004:120 [ref. 27807], Love et al. 2005:89 [ref. 37547], Bogutskaya & Naseka 2004:190 [ref. 28183], Mecklenburg et al. 2011:123 [ref. 31212], Page et al. 2013:124 [ref. 32708], Shinohara et al. 2014:250 [ref. 33330], Parin et al. 2014:261 [ref. 33547], Mecklenburg & Steinke 2015:164 [ref. 34033], Tohkairin et al. 2015:7 [ref. 35331], Mecklenburg et al. 2016:76 [ref. 34440], Kells et al. 2016:182 [ref. 35888], Dyldin & Orlov 2017:65 [ref. 35138], Mecklenburg et al. 2018:213 [ref. 36370], Dyldin et al. 2021:66 [ref. 38804], Love et al. 2021:123 [ref. 39279], Dyldin & Orlov 2022:48 [ref. 38972], Page et al. 2023:186 [ref. 40505]). Current status: Valid as Myoxocephalus jaok (Cuvier 1829). Psychrolutidae. Distribution: North Pacific and adjacent Arctic: northern Sea of Japan and Sea of Okhotsk north to Bering Sea and Chukchi Sea, east to eastern Gulf of Alaska (U.S.A.). Habitat: brackish, marine.