Species that contain: Agosia and robusta [ 1 ] records

robusta, Agosia Rutter [C. L.] 1903:148, Fig. (p. 148) [Bulletin of the U. S. Fish Commission v. 22 [1902]; ref. 12376] Prosser Creek, tributary to Truckee River, at Prosser Bar, Nevada County, northeastern California, U.S.A. Holotype: USNM 50589. Paratypes: MCZ 35947 [ex USNM] (2); not CAS-SU 5609 (35), 22666 (20); USNM 58501 (18), 126458 (3). Type catalog: Böhlke 1953:29 [ref. 12291], Gilbert 1998:141 [ref. 23395]. •Synonym of Rhinichthys osculus (Girard 1856), but a valid subspecies robustus (Rutter 1903) -- (La Rivers 1994:430 [ref. 23389], Gilbert 1998:141 [ref. 23395], Moyle 2002:161 [ref. 26449], Scharpf 2005:39 [ref. 28940]). •Valid as Rhinichthys nevadensis robustus (Rutter 1903) -- (Moyle et al. 2023:519 [ref. 40044]). •Synonym of Rhinichthys nevadensis Gilbert 1893. Current status: Synonym of Rhinichthys nevadensis Gilbert 1893. Leuciscidae: Pogonichthyinae. Distribution: North America: desert basins in California and northern Nevada, U.S.A. [this subspecies]. Habitat: freshwater.