villosus, Cottus Pallas [P. S.] (ex Steller) 1814:129 [Zoographia Rosso-Asiatica v. 3; ref. 3351] Cape Kronotski; Kamchatka; mouth of Icha River, western Kamchatka, Russia. No types known. Based on manuscript description by Georg Wilhelm Steller (1709-1746). •Valid as Hemitripterus villosus (Pallas 1814) -- (Watanabe 1960:107 [ref. 11959], Yabe in Masuda et al. 1984:323 [ref. 6441], Lindberg & Krasyukova 1987:256 [ref. 15964], Matarese et al. 1989:452 [ref. 26885], Kim & Youn 1992:69 [ref. 22287] as Hemisitripterus, Cheng & Zhou 1997:434 [ref. 26385] dated 1811, Sokolovskaya et al. 1998:10 [ref. 24670], Nakabo 2000:627 [ref. 25086], Zemnukhov et al. 2001:420 [ref. 25412], Sheiko & Fedorov 2000:29 [ref. 25650], Mecklenburg et al. 2002:508 [ref. 25968], Nakabo 2002:627 [ref. 26001], Choi et al. 2003:271, 579 [ref. 26218], Parin et al. 2002:S91 [ref. 28300], Mecklenburg 2003:3 [ref. 27294], Fedorov et al. 2003:84 [ref. 27579], Love et al. 2005:94 [ref. 37547], Shinohara et al. 2011:44 [ref. 31715], Shinohara et al. 2014:251 [ref. 33330], Parin et al. 2014:281 [ref. 33547], Tohkairin et al. 2015:6 [ref. 35331], Dyldin & Orlov 2017:68 [ref. 35138], Kim et al. 2020:105 [ref. 39118], Sonoyama et al. 2020:89 [ref. 37637], Dyldin et al. 2021:69 [ref. 38804], Love et al. 2021:130 [ref. 39279], Dyldin & Orlov 2022:54 [ref. 38972]). Current status: Valid as Hemitripterus villosus (Pallas 1814). Agonidae: Hemitripterinae. Distribution: Northwestern Pacific: Sea of Japan (Korea, Japan, Russia) and Sea of Okhotsk north to western Bering Sea and Karaginskiy Islands and Commander Islands (Russia); one possible record from western Gulf of Alaska. Habitat: brackish, marine.