aeneus, Tetragonopterus Hensel [R.] 1870:87 [Archiv für Naturgeschichte v. 36 (pt. 1); ref. 18277] Porto Alegre, southern Brazil. Holotype (unique): ZMB 7479. Objectively invalid; preoccupied by Tetragonopterus aeneus Günther 1860. Replaced by Astyanax henseli de Melo & Buckup 2006. •Synonym of Astyanax obscurus (Hensel 1870) -- (Buckup in Reis et al. 2003:111 [ref. 27061]). •Synonym of Astyanax henseli de Melo & Buckup 2006 -- (de Melo & Buckup 2006:46 [ref. 28622]). •Synonym of Psalidodon henseli (de Melo & Buckup 2006). 1°Homonym. Current status: Synonym of Psalidodon henseli (de Melo & Buckup 2006). Acestrorhamphidae: Acestrorhamphinae. Habitat: freshwater.