argenteus, Tetragonopterus Cuvier [G.] (ex Seba) 1816:166 [Le Règne Animal; ref. 993] No locality. No types known. Cuvier specimens: MNHN A-9807 (1). Type catalog: Bertin 1948:16 [ref. 19577]. Based on Seba 1758:106, Pl. 34 (fig. 3). •Valid as Tetragonopterus argenteus Cuvier 1816 -- (Ovchynnyk 1967:30 [ref. 37559], Ortega & Vari 1986:9 [ref. 9708], Taphorn 1992:343 [ref. 23654], Miquelarena et al. 1997:67 [ref. 23469], Gómez & Chebez 1996:51 [ref. 23791], Britski et al. 1999:30 [ref. 24147], Reis in Reis et al. 2003:212 [ref. 27061], López et al. 2003:28 [ref. 27366], Benine et al. 2004:339 [ref. 27973], Menni 2004:78 [ref. 28131], Zarske & Géry 2006:8 [ref. 29010], Mirande 2010:503 [ref. 31006], Melo et al. 2011:49 [ref. 31233], Silva et al. 2013:1629 [ref. 32576], Araujo & Lucinda 2014:314 [ref. 33377], Barriga Salazar 2014:109 [ref. 35745], Litz & Koerber 2014:14 [ref. 33622], Ramos et al. 2014:4 [ref. 35321], Sarmiento et al. 2014:53, 185 [ref. 35004], Mirande & Koerber 2015:23 [ref. 35117], Melo et al. 2015:711 [ref. 35424], Teixeira et al. 2016:474 [ref. 34088], Silva et al. 2016:11 [ref. 34929], Melo et al. 2016:376 [ref. 35317], Nión et al. 2016:28 [ref. 35565] dated 1817, Koerber et al. 2017:36 [ref. 35267], DoNascimiento et al. 2017:52 [ref. 35633], Urbano-Bonilla et al. 2018:89 [ref. 35773], Careaga et al. 2020:75 [ref. 37774], Reis et al. 2020:461 [ref. 38364], Meza-Vargas et al. 2021:20 [ref. 39298], Koerber et al. 2022:38 [ref. 39235], Cortés Hernández et al. 2023:455 [ref. 40760], Vieira et al. 2023:17 [ref. 40759]). Current status: Valid as Tetragonopterus argenteus Cuvier 1816. Characidae: Tetragonopterinae. Distribution: South America: Amazon and Orinoco river basins (Argentina, Brazil, Colombia, Bolivia, Ecuador, Paraguay, Peru, Uruguay and Venezuela). Habitat: freshwater.