quadrifilis, Porocottus Gill [T. N.] 1859:166 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 11; ref. 1760] Bering Strait. Holotype (unique): USNM 6627 (badly damaged). See Mecklenburg et al. 2002:405 and 484 [ref. 25968] •Valid as Porocottus quadrifilis Gill 1859 -- (Neelov 1979:136 [ref. 3152], Sheiko & Fedorov 2000:29 [ref. 25650], Mecklenburg et al. 2002:484 [ref. 25968], Muto et al. 2002:231 [ref. 26331], Parin et al. 2002:S84 [ref. 28300], Love et al. 2005:91 [ref. 37547], Parin et al. 2014:269 [ref. 33547], Love et al. 2021:124 [ref. 39279]). Current status: Valid as Porocottus quadrifilis Gill 1859. Psychrolutidae. Distribution: North Pacific: probably Bering Strait; known from only one record with uncertain locality. Habitat: marine.