tenuis, Uranidea Evermann [B. W.] & Meek [S. E.] 1898:83, Fig. 6 [Bulletin of the U. S. Fish Commission v. 17 (art. 2) [1897]; ref. 14683] Lower end of upper Klamath Lake near Klamath Falls, Oregon, U.S.A. Holotype: USNM 48229. Paratypes or non-types: ANSP 39142 (1, missing), BMNH 1900.9.29.198-199 (2), CAS-SU 5705 (20), USNM 124958 [ex BCF 434] (39). Type catalog: Böhlke 1953:133 [ref. 12291], Böhlke 1984:66 [ref. 13621]. •Valid as Cottus tenuis (Evermann & Meek 1898) -- (Lee et al. 1980:824 [ref. 22416], Page & Burr 1991:248 [ref. 18983], Nelson et al. 2004:119 [ref. 27807], Scharpf 2008:11 [ref. 30399], Page & Burr 2011:473 [ref. 31215], Page et al. 2013:123 [ref. 32708], Goto et al. 2014:[10] [ref. 33456], Young et al. 2022:327 [ref. 39356], Page et al. 2023:184 [ref. 40505]). Current status: Valid as Cottus tenuis (Evermann & Meek 1898). Cottidae. Distribution: North America: Klamath River basin, Oregon (U.S.A.). Habitat: freshwater.