difluviatilis, Corydoras Britto [M. R.] & Castro [R. M. C.] 2002:1007, Figs. 1-3 [Copeia 2002 (no. 4); ref. 26509] Córrego Paulicéia, tributary of rio Pardo, rio Paraná system, 21°38'S, 47°38'W, Gleba Pé-do-Gigante, Parque Estadual de Vassununga, Mun. de Santa Rita do Passa Quatro, São Paulo, Brazil. Holotype: MZUSP 75268. Paratypes: LIRP 41 (2), 171 (1), 333 (1), 816-17 (1, 31); MCP 20815 (3); MNRJ 19735-36 (1, 2), 19737 (12, 3 c&s), 19738-39 (6, 1), 19909-13 (6, 13 [3 c&s], 1, 2, 1); MZUSP 49226 (4), 51485 (2), 51487 (5), 51496 (5), 52909-10 (1, 1), 75269 (1); UFRJ 4655 (1); UMMZ 234253 (2). Type catalog: Ferraris 2007:116 [ref. 29155]. •Valid as Corydoras difluviatilis Britto & Castro 2002 -- (Reis in Reis et al. 2003:297 [ref. 27061], Shimabukuro-Dias et al. 2004:141 [ref. 27796], Ferraris 2007:116 [ref. 29155], Tencatt et al. 2013:261 [ref. 32752], Tencatt et al. 2014:78 [ref. 33230], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ottoni et al. 2016:132 [ref. 34756], Ohara et al. 2016:549 [ref. 34772], Tencatt et al. 2024:23 [ref. 40850]). Current status: Valid as Corydoras difluviatilis Britto & Castro 2002. Callichthyidae: Corydoradinae. Distribution: South America: Paraná River drainage and São Francisco drainage, Brazil. Habitat: freshwater.