aramburui, Astyanax Protogino [L. C.], Miquelarena [A. M.] & López [H. L.] 2006:2, Figs. 1-4 [Zootaxa No. 1297; ref. 28780] Villaguay Creek at Balneario, 31°55'S, 59°03'W, Gualeguay River basin, Entre Ríos Province, Argentina. Holotype: CFA-IC 11712 (ILPLA 1712). Paratypes: CFA-IC [ILPLA] 569 (13), 1709 (4, 2 c&s), 11710 [1710] (7), 11711 [1711] (5, 1 c&s), 11713 [1713] (4); MLP 9672 (1, not 2). Type catalog: Koerber 2007:2 [ref. 29776], Miquelarena et al. 2009:29-30 [ref. 34389], Miquelarena & Nadalin 2014:4 [ref. 33466], Bogan et al. 2019:11 [ref. 37088]. •Probably a synonym of Astyanax rutilus Jenyns 1842 -- (Almirón et al. 2010:67 [ref. 30813]). •Valid as Astyanax aramburui Protogino, Miquelarena & López 2006 -- (Koerber 2011:3 [ref. 31122], Lucena et al. 2013:232 [ref. 32870], Lucena et al. 2013:542 [ref. 32914], Koerber 2014:4 [ref. 33621], Bertaco & Vigo 2015:267 [ref. 33857], Mirande & Koerber 2015:23 [ref. 35117], Terán et al. 2017:7 [ref. 35358]). Current status: Valid as Astyanax aramburui Protogino, Miquelarena & López 2006. Acestrorhamphidae: Acestrorhamphinae. Distribution: South America: Paraná and Uruguay river basins, Argentina. Habitat: freshwater.