courensis, Astyanax Bertaco [V. A.], Carvalho [F. R.] & Jerep [F. C.] 2010:269, Figs. 5-6 [Neotropical Ichthyology v. 8 (no. 2); ref. 30864] Rio dos Couros at Parque Portal da Chapada, tributary of rio Tocantinzinho, upper rio Tocantins basin, Alto Paraíso de Goías, Goías State, Brazil, 14°09'58"S, 47°35'43"W, elevation 1135 meters. Holotype: UFRGS 11499. Paratypes: MCP 44403 (20), 44404 (1); UFRGS 9934 (5), 11290 (107, 5 c&s), 11295 (5), 11588 (38, 2 c&s). •Valid as Astyanax courensis Bertaco, Carvalho & Jerep 2010 -- (Tagliacollo et al. 2011:41 [ref. 31138], Oliveira et al. 2013:292 [ref. 32756], Ingenito & Duboc 2014:282 [ref. 33374], da Graça et al. 2017:12 [ref. 35556], Oliveira et al. 2017:179 [ref. 35587]). Current status: Valid as Astyanax courensis Bertaco, Carvalho & Jerep 2010. Acestrorhamphidae: Acestrorhamphinae. Distribution: Rio dos Couros drainage, upper rio Tocantins basin, Goías, Brazil. Habitat: freshwater.