nigribarbis, Pimelodus (Pseudorhamdia) Boulenger [G. A.] 1889:266 [Annals and Magazine of Natural History (Series 6) v. 4 (no. 22) (art. 33); ref. 17019] Rio Camaquã, Laguna dos Patos system, Rio Grande do Sul, Brazil. Lectotype: BMNH 1889.8.24.6. Paralectotypes: BMNH 1889.8.24.7 (1). Type catalog: Ferraris 2007:335 [ref. 29155]. Lectotype selected by Lucena et al. 1992:145 [ref. 17616]. •Synonym of Parapimelodus valenciennis (Lütken 1874) -- (Malabarba 1989:141 [ref. 14217]). •Valid as Parapimelodus nigribarbis (Boulenger 1889) -- (Lucena et al. 1992:144 [ref. 17616], Lundberg & Littmann in Reis et al. 2003:438 [ref. 27061], Ferraris 2007:335 [ref. 29155], Koerber & Litz 2014:3 [ref. 34967], Bertaco et al. 2016:420 [ref. 34561], Koerber & Litz 2016:4 [ref. 35098], Koerber et al. 2020:7 [ref. 37480], Grant 2021:79 [ref. 38702], Koerber et al. 2021:8 [ref. 38894], Koerber et al. 2023:8 [ref. 40355], Loureiro et al. 2023:138 [ref. 40506]). Current status: Valid as Parapimelodus nigribarbis (Boulenger 1889). Pimelodidae. Distribution: South America: Laguna dos Patos basin (Brazil and Uruguay). Habitat: freshwater.