simus, Alburnellus Cope [E. D.] in Cope & Yarrow 1875:649, Pl. 31 (figs. 2-a) [Engineer Department, United States Army, Report upon the Geographical and Geological Explorations and Surveys west of the one hundredth Meridian v. 5 (Zoology) Chapter 6; ref. 968] Rio Grande at San Ildefonso, about 10 miles east of Los Alamos, Sante Fe County, New Mexico, U.S.A. Lectotype: USNM 16982. Paralectotypes: MCZ 35933 [ex USNM 16982] (2); USNM 15800 (5), 227343 [ex USNM 16982] (now 69). Type catalog: Gilbert 1978:80 [ref. 7042], Gilbert 1998:147-148 [ref. 23395]. Lectotype selected by Chernoff et al. 1982:11 [ref. 8989]. •Valid as Notropis simus (Cope 1875) -- (Gilbert 1978:80 [ref. 7042], Lee et al. 1980:310 [ref. 22416], Chernoff et al. 1982:10 [ref. 8989], Page & Burr 1991:138 [ref. 18983], Espinosa Pérez et al. 1993:19 [ref. 22290], Gilbert 1998:148 [ref. 23395], Nelson et al. 2004:76 [ref. 27807], Scharpf 2005:32 [ref. 28940] with subspecies, Miller 2006:135 [ref. 28615], Page & Burr 2011:263 [ref. 31215] with 2 subspecies, Page et al. 2013:76 [ref. 32708]). •Valid as Alburnops simus (Cope 1875) -- (Page et al. 2023:67 [ref. 40505], Fricke et al. 2024:164 [ref. 41622]). Current status: Valid as Alburnops simus (Cope 1875). Leuciscidae: Pogonichthyinae. Distribution: Southern North America: Río Bravo/Rio Grande system, Texas and New Mexico (U.S.A.) and northern Mexico. Habitat: freshwater.