clarkii, Salmo Richardson [J.] (ex Gairdner) 1836:225 [Fauna Boreali-Americana Part 3; ref. 3731] The Katpootl [Cathlapoot River], a small tributary of the Columbia on its right bank, Washington, U.S.A. Syntypes: whereabouts unknown. The original spelling clarkii should be used. Western authors do not usually recognize the genus Parasalmo. •Valid as Salmo clarkii Richardson 1836 [often as clarki] -- (Lee et al. 1980:105 [ref. 22416], Eschmeyer & Herald 1983:78 [ref. 9277], Robison & Buchanan 1988:123 [ref. 23393], La Rivers 1994:274 [ref. 23389], Scott & Crossman 1998:177 [ref. 24570]). •Valid as Oncorhynchus clarkii (Richardson 1836) [usually as clarki] -- (McAllister 1990:84 [ref. 14674], Tomelleri & Eberle 1990:50 [ref. 24089], Page & Burr 1991:53 [ref. 18983], Behnke 1992:53, 61 [ref. 23385], Espinosa Pérez et al. 1993:30 [ref. 22290], Stearley & Smith 1993:21 [ref. 26683] as clarki, Baxter & Stone 1995:162 [ref. 23374], Thurow et al. 1997:1094 [ref. 25523], Sigler & Sigler 1996:169 [ref. 25943] as clarki, Fuller et al. 1999:244 [ref. 25838], Broughton 2000:647 [ref. 24593] as clarki, Lyons et al. 2000:66 [ref. 26594] as clarki, Sheiko & Fedorov 2000:20 [ref. 25650], Mecklenburg et al. 2002:203 [ref. 25968], Moyle 2002:287 [ref. 26449] as clarki, Wydoski & Whitney 2003:56 [ref. 27816] as clarki, Nelson et al. 2004:86 [ref. 27807], Love et al. 2005:34 [ref. 37547], Scharpf 2006:26 [ref. 30386] with subspecies, Trotter & Behnke 2008:58 [ref. 30146], Minckley & Marsh 2009:86, 93 [ref. 31114], Page & Burr 2011:403 [ref. 31215] with 14 subspecies, Page et al. 2013:86 [ref. 32708], Pietsch & Orr 2015:21 [ref. 34694], Penaluna et al. 2016:291 [ref. 34726], Kells et al. 2016:98 [ref. 35888], Love et al. 2021:53 [ref. 39279]). •Valid as Parasalmo clarkii (Richardson 1836) -- (Reshetnikov et al. 1997:729 [ref. 24702], Dorofeeva & Savvaitova 1998:34 [ref. 23574], Bogutskaya et al. 2001:46 [ref. 26178], Bogutskaya & Naseka 2004:154 [ref. 28183], McPhail 2007:240 [ref. 31199], Dyldin et al. 2020:83 [ref. 37569], Page et al. 2023:83 [ref. 40505]). Current status: Valid as Oncorhynchus clarkii (Richardson 1836). Salmonidae: Salmoninae. Distribution: North Pacific drainages from Russia and Alaska to northern California (U.S.A.). Habitat: freshwater, brackish, marine.