vaillanti, Plecostomus Steindachner [F.] 1877:225 [9] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 76 (1. Abth.); ref. 14247] Rio Preto at Villa de Santa Rita, Bahia State, Brazil. Syntypes: (several) ?MCZ 7842 (2); NMW 44273 (1), 44276-77 (3, 1). Type catalog: Ferraris 2007:261 [ref. 29155]. On p. 9 of separate. •Valid as Hypostomus vaillanti (Steindachner 1877) -- (Isbrücker 1980:36 [ref. 2303], Burgess 1989:432 [ref. 12860], Isbrücker 2001:28, 31 [ref. 25653], Isbrücker 2002:20 [ref. 27178], Weber in Reis et al. 2003:363 [ref. 27061], Armbruster 2004:80 [ref. 27644], Ferraris 2007:261 [ref. 29155], Zanata et al. 2013:248 [ref. 32751], Zanata & Pitanga 2016:231 [ref. 34535] as vailanti, Ramos et al. 2017:8 [ref. 35396], Silva et al. 2020:11 [ref. 37809], Lustosa-Costa et al. 2022:16 [ref. 39190], Koerber et al. 2023:6 [ref. 40665]). Current status: Valid as Hypostomus vaillanti (Steindachner 1877). Loricariidae: Hypostominae. Distribution: South America: Preto River basin of São Francisco River drainage and middle Rio Parnaíba basin (Bahia State, Brazil). Habitat: freshwater.