tricuspis, Cottus Reinhardt [J. C. H.] 1830:16 [Oversigt over det Kongelige Danske Videnskabernes Selskabs Forhandlinger og dets Medlemmers Arbeider (Kjøbenhavn) 1829-30; ref. 19480] Greenland. Holotype: ZMUC uncat. Type catalog: Nielsen 1974:81 [ref. 9588]. •Valid as Gymnocanthus tricuspis (Reinhardt 1830) -- [sometimes as Gymnacanthus] (Neelov 1973:595 [ref. 7219], Fedorov in Whitehead et al. 1986:1249 [ref. 13677], Robins & Ray 1986:281 [ref. 23100], Scott & Scott 1988:495 [ref. 25518], Matarese et al. 1989:394 [ref. 26885], McAllister 1990:197 [ref. 14674], Yabe in Okamura et al. 1995:163 [ref. 22531], Sheiko & Fedorov 2000:27 [ref. 25650] in Gymnacanthus, Klein-MacPhee in Collette & Klein-MacPhee 2002:347 [ref. 26158], Mecklenburg et al. 2002:464 [ref. 25968], Parin et al. 2002:S75 [ref. 28300] as Gymnacanthus Nelson et al. 2004:120 [ref. 27807], Love et al. 2005:87 [ref. 37547], Mecklenburg et al. 2007:174 [ref. 29448], Møller et al. 2010:52 [ref. 31169], Page et al. 2013:123 [ref. 32708], Dolgov 2013:918 [ref. 33112], Parin et al. 2014:249 [ref. 33547], Mecklenburg & Steinke 2015:164 [ref. 34033], Afonso et al. 2016:41, 163 [ref. 36199], Kells et al. 2016:172 [ref. 35888], Mecklenburg et al. 2016:61 [ref. 34440], Dolgov et al. 2018:118 [ref. 41055], Mecklenburg et al. 2018:199 [ref. 36370], Love et al. 2021:121 [ref. 39279], Chernova et al. 2022:5 [ref. 39177], Tokranov et al. 2022:888 [ref. 39694], Page et al. 2023:185 [ref. 40505]). Current status: Valid as Gymnocanthus tricuspis (Reinhardt 1830). Psychrolutidae. Distribution: North Atlantic and Arctic Ocean; Circumpolar; North Pacific: northern Bering Sea. Habitat: marine.