austrinum, Myxostoma Bean [T. H.] 1880:302 [Proceedings of the United States National Museum v. 2 (no. 95); ref. 16034] Piedad, in Morelia, Michoacàn, Mexico. Lectotype: USNM 23121. Paralectotypes: USNM 23120 (1). Type catalog: Gilbert 1998:173 [ref. 23395]. Originally as austrina (p. 302) and austrinum (p. 303), austrinum is correct. Lectotype established (as figured specimen) in caption to Pl. 37, p. 3238 in Jordan & Evermann 1900 [ref. 2446]; Robins & Raney 1957:308 [ref. 12166] designated another specimen (USNM 23120) as lectotype. •Valid as Scartomyzon austrinus (Bean 1880), subspecies austrinus -- (Gilbert 1998:173 [ref. 23395], Miller 2006:151 [ref. 28615]). •Valid as Moxostoma austrinum Bean 1880 -- (Lee et al. 1980:413 [ref. 22416], Page & Burr 1991:187 [ref. 18983], Espinosa Pérez et al. 1993:23 [ref. 22290], Nelson et al. 2004:79 [ref. 27807], Scharpf 2006:11 [ref. 30386] with subspecies, Page & Burr 2011:335 [ref. 31215], Page et al. 2013:80 [ref. 32708], Pérez-Rodríguez et al. 2016:[3] 635 [ref. 37366], Page et al. 2023:65 [ref. 40505], Fricke et al. 2024:159 [ref. 41622]). Current status: Valid as Moxostoma austrinum Bean 1880. Catostomidae: Catostominae. Distribution: North America: Pacific watersheds (western Mexico) endemic. Habitat: freshwater.