argentea, Piabina Reinhardt [J. T.] 1867:50, Pl. 1 [Oversigt over det Kongelige Danske Videnskabernes Selskabs Forhandlinger og dets Medlemmers Arbeider (Kjøbenhavn) 1866; ref. 3694] Lagoa Santa, upper Rio São Francisco basin, Minas Gerais State, Brazil. Lectotype: ZMUC 253. Paralectotypes: ZMUC 254 (1) Lagoa Santa. Type catalog: Nielsen 1974:45 [ref. 9588]. Lectotype selected by Vari & Harold 2001:226 [ref. 25842]. •Valid as Piabina argentea Reinhardt 1867 -- (Vari & Harold 1998:256 [ref. 23845], Vari & Harold 2001:224 [ref. 25842], Britski 2001:21 [ref. 26046], da Silva & Kaefer 2003:58 [ref. 27140], Vari & Harold in Reis et al. 2003:154 [ref. 27061], Mirande 2010:544 [ref. 31006], Baicere-Silva et al. 2011:383 [ref. 31395], Thomaz et al. 2015:Add. 5 [ref. 33893], Koerber et al. 2017:35 [ref. 35267], Jerep & Shibatta 2017:10 [ref. 35610], Azevedo-Santos et al. 2019:5 [ref. 36506], Azevedo-Santos et al. 2020:5 [ref. 39606], Reis et al. 2020:461 [ref. 38364], Silva et al. 2020:7 [ref. 37809], Vita et al. 2020:[5] [ref. 37506], Brandão et al. 2023:105 [ref. 40464], Quintela et al. 2023:6 [ref. 40727], Lima 2024:255 [ref. 40817], Vieira-Guimarães et al. 2024:40 [ref. 41258]). Current status: Valid as Piabina argentea Reinhardt 1867. Stevardiidae: Diapominae. Distribution: South America: upper Paraná River basin in northeastern Paraguay and southern Brazil; São Francisco, Itapicuru, Paríba, and Itapemirim River basins (Brazil and Paraguay). Habitat: freshwater.