argyrimarginatus, Astyanax Garutti [V.] 1999:586, Fig. 1 [Revista Brasileira de Biologia v. 59 (no. 4); ref. 24920] Aragarças, Córrego Jaraguá, Araguaia River basin, Goiás, Brazil, about 15°55'S, 52°15'W. Holotype: MZUSP 48268 [? 18592]. Paratypes: MZUSP 4813 (10), 26518 (4), 48269-71 (4, 2, 2). •Valid as Astyanax argyrimarginatus Garutti 1999 -- (Buckup in Reis et al. 2003:107 [ref. 27061], Vari & Castro 2007:158 [ref. 29039], Bertaco & Garutti 2007:28 [ref. 29172], Garutti & Venere 2009:377 [ref. 30493], Garutti & Langeani 2009:372 [ref. 30985], Andrade et al. 2012:802 [ref. 41119], Freitas et al. 2015:190 [ref. 34055]). Current status: Valid as Astyanax argyrimarginatus Garutti 1999. Acestrorhamphidae: Acestrorhamphinae. Distribution: South America: Amazon River basin (Brazil). Habitat: freshwater.