costatus, Prochilodus Valenciennes [A.] in Cuvier & Valenciennes 1850:79 [Histoire naturelle des poissons v. 22; ref. 1014] Rio São Francisco, Brazil. Holotype (unique): MNHN A-8636 (dry). Type catalog: Bertin 1948:35 [ref. 19577]. •Valid as Prochilodus costatus Valenciennes 1850 -- (Casatti & Castro 1998:232 [ref. 23663], Castro & Vari in Reis et al. 2003:66 [ref. 27061], Castro & Vari 2003:96 [ref. 28606], Silva et al. 2020:8 [ref. 37809]). Current status: Valid as Prochilodus costatus Valenciennes 1850. Prochilodontidae. Distribution: South America: São Francisco River basin (Brazil); introduced elsewhere. Habitat: freshwater.