nazas, Nototropis Meek [S. E.] 1904:70, Fig. 19 [Field Columbian Museum, Zoölogical Series v. 5; ref. 2958] Río Nazas at Santiago Papasquiaro, Durango, Mexico. Holotype: FMNH 4375. Paratypes: BMNH 1905.12.6.149-154 (6), FMNH 33572-04 (133). Type catalog: Gilbert 1978:63 [ref. 7042], Ibarra & Stewart 1987:60 [ref. 12367], Gilbert 1998:118 [ref. 23395]. The original genus spelling should have been Notropis. •Valid as Notropis nazas Meek 1904 -- (Gilbert 1978:63 [ref. 7042], Chernoff & Miller 1986:181 [ref. 6782], Espinosa Pérez et al. 1993:18 [ref. 22290], Gilbert 1998:118 [ref. 23395], Nelson et al. 2004:75 [ref. 27807], Scharpf 2005:31 [ref. 28940], Miller 2006:134 [ref. 28615], Page et al. 2013:75 [ref. 32708]). •Valid as Hybognathus nazas (Meek 1904) -- (Stout et al. 2022:9 [ref. 39738] as 'Hybognathus' nazas Page et al. 2023:71 [ref. 40505]). Current status: Valid as Hybognathus nazas (Meek 1904). Leuciscidae: Pogonichthyinae. Distribution: Southern North America: Mexico. Habitat: freshwater.