cordovae, Tetragonopterus Günther [A.] 1880:12 [Annals and Magazine of Natural History (Series 5) v. 6 (no. 31) (art. 2); ref. 14279] Río de Cordova (Plata), Argentina. Syntypes: BMNH 1872.4.4.4-11 (8). •Valid as Astyanax cordovae (Günther 1880) -- (Gómez & Chebez 1996:49 [ref. 23791], Zarske & Géry 1999:204 [ref. 24913], Azpelicueta, Buckup in Reis et al. 2003:108 [ref. 27061], López et al. 2003:22 [ref. 27366], Casciotta et al. 2003:333 [ref. 27401], Azpelicueta et al. 2003:11 [ref. 27696], Menni 2004:77 [ref. 28131], Miquelarena et al. 2005:19 [ref. 28188], Miquelarena & Menni 2005:669 [ref. 28391], Mirande & Koerber 2015:23 [ref. 35117], see DoNascimiento et al. 2017:[12] [ref. 35679]). Current status: Valid as Astyanax cordovae (Günther 1880). Acestrorhamphidae: Acestrorhamphinae. Distribution: Primero River, western Argentina. Habitat: freshwater.