costatus, Silurus Linnaeus [C.] 1758:306 [Systema Naturae, Ed. X v. 1; ref. 2787] "Indiis" [South America]. No types known. Type catalog: Ferraris 2007:176 [ref. 29155]. See Piorski et al. 2008:481 [ref. 29987] for link to Mystus ascita Gronow 1854 and remarks on type locality. •Valid as Platydoras costatus (Linnaeus 1758) -- (Ortega & Vari 1986:13 [ref. 9708], Burgess 1989:224 [ref. 12860], Gómez & Chebez 1996:57 [ref. 23791], Piorski 1999:19 [ref. 24217], Fuller et al. 1999:213 [ref. 25838], Le Bail et al. 2000:48 [ref. 24549], Lasso et al. 2001:98 [ref. 25928], López et al. 2003:54 [ref. 27366], Sabaj & Ferraris in Reis et al. 2003:464 [ref. 27061], Menni 2004:82 [ref. 28131], Ferraris 2007:176 [ref. 29155], Piorski et al. 2008:491 [ref. 29987], Koerber 2011:9 [ref. 31122] as not in Argentina, Barriga Salazar 2014:115 [ref. 35745], Koerber 2014:6 [ref. 33621], Sarmiento et al. 2014:155, 190 [ref. 35004], DoNascimiento 2016:539 [ref. 34727], see DoNascimiento et al. 2017:[23] [ref. 35679], Meza-Vargas et al. 2021:22 [ref. 39298], Koerber et al. 2022:58 [ref. 39235]). Current status: Valid as Platydoras costatus (Linnaeus 1758). Doradidae: Doradinae. Distribution: South America: Amazon, Tocantins, Parnaíba, Orinoco and Essequibo River basins and coastal drainages in French Guiana and Suriname (Bolivia, Brazil, Ecuador, ?Colombia, French Guiana, Guyana, Peru, Suriname and Venezuela. But perhaps only coastal drainages of Suriname and French Guiana). Habitat: freshwater.