Porocottus Gill [T. N.] 1859:166 Masc. Porocottus quadrifilis Gill 1859. Type by monotypy. •Valid as Porocottus Gill 1859 -- (Watanabe 1960:90 [ref. 11959], Neelov 1979:115, 135 [ref. 3152], Washington et al. 1984:443 [ref. 13660], Yabe in Masuda et al. 1984:327 [ref. 6441], Yabe 1985:111 [ref. 11522], Lindberg & Krasyukova 1987:220 [ref. 15964], Mecklenburg et al. 2002:402 [ref. 25968], Muto et al. 2002:229 [ref. 26331], Parin et al. 2002:S83 [ref. 28300], Kontula et al. 2003:149 [ref. 26791], Parin et al. 2014:267 [ref. 33547], Dyldin & Orlov 2017:67 [ref. 35138], Balakirev et al. 2020:11 [ref. 37873], Radchenko et al. 2021:[9] [ref. 38826]). Current status: Valid as Porocottus Gill 1859. Psychrolutidae.