platycephalus, Cottus Pallas [P. S.] 1814:135 [Zoographia Rosso-Asiatica v. 3; ref. 3351] Kamchatka, Russia; America; Okhotsk Sea. Lectotype: ZMB 4756. Syntypes: ZMB 4756 (1, dry). Type catalog: Paepke & Fricke 1992:283 [ref. 19946]. Lectotype designated by Svetovidov 1978:27 [ref. 6025]. •Valid as Myoxocephalus platycephalus (Pallas 1814) -- (Berg 1949:1127 [ref. 20662]). •Valid as Megalocottus platycephalus (Pallas 1814) -- (Neelov 1979:130 [ref. 3152], Pietsch et al. 2001:145 [ref. 25688], Reshetnikov et al. 1997:759 [ref. 24702], Sideleva 1998:152 [ref. 23595], Sheiko & Fedorov 2000:28 [ref. 25650], Zemnukhov et al. 2001:420 [ref. 25412], Mecklenburg et al. 2002:475 [ref. 25968], Parin et al. 2002:S79 [ref. 28300], Fedorov et al. 2003:73 [ref. 27579], Nelson et al. 2004:120 [ref. 27807], Bogutskaya & Naseka 2004:190 [ref. 28183], Love et al. 2005:89 [ref. 37547], Mecklenburg et al. 2007:183 [ref. 29448], Page et al. 2013:124 [ref. 32708], Parin et al. 2014:257 [ref. 33547], Mecklenburg & Steinke 2015:164 [ref. 34033], Mecklenburg et al. 2016:72 [ref. 34440], Kells et al. 2016:182 [ref. 35888], Mecklenburg et al. 2018:209 [ref. 36370], Love et al. 2021:123 [ref. 39279], Page et al. 2023:186 [ref. 40505]). Current status: Valid as Megalocottus platycephalus (Pallas 1814). Psychrolutidae. Distribution: North Pacific and Arctic region: northern Sea of Japan and Sea of Okhotsk north to Bering Sea. Habitat: brackish, marine.