nicholsii, Gobius Bean [T. H.] 1882:469 [Proceedings of the United States National Museum v. 4 (no. 255); ref. 224] Departure Bay, Nanaimo, east coast of Vancouver Island, British Columbia, Canada, depth 20 fathoms [36.6 meters]. Holotype (unique): USNM 29803. Misspelled nicholsoni in Eigenmann 1890:66 [ref. 27063]. •Valid as Coryphopterus nicholsii (Bean 1882) -- (Eschmeyer & Herald 1983:261 [ref. 9277], Matarese et al. 1989:546 [ref. 26885] as nicholsi, McAllister 1990:176 [ref. 14674] as nicholsi, Thomson et al. 2000:246 [ref. 25640]). •Valid as Rhinogobiops nicholsii (Bean 1882) -- (Randall 1995:795 [ref. 22357], Mecklenburg et al. 2002:801 [ref. 25968], Thacker & Cole 2002:847 [ref. 26548], Nelson et al. 2004:173 [ref. 27807], Love et al. 2005:163 [ref. 37547], Van Tassell 2011:142 [ref. 31732], Page et al. 2013:178 [ref. 32708], Pietsch & Orr 2015:66 [ref. 34694], Kells et al. 2016:308 [ref. 35888], Burton & Lea 2019:91 [ref. 37205], Love et al. 2021:206 [ref. 39279], Parenti 2021:221 [ref. 38603], Page et al. 2023:124 [ref. 40505]). Current status: Valid as Rhinogobiops nicholsii (Bean 1882). Gobiidae: Gobiinae. Distribution: Eastern Pacific: southeastern Alaska (U.S.A.) south to Pacific coast of central Baja California (Mexico), including Guadalupe Island (Mexico). IUCN (2024): Not Assessed. Habitat: marine.