Psalidodon Eigenmann [C. H.] 1911:165 Masc. Psalidodon gymnodontus Eigenmann 1911. Type by original designation (also monotypic). •Synonym of Astyanax Baird & Girard 1854 -- (Pavanelli & Oliveira 2009:569 [ref. 30986]). •Valid as Psalidodon Eigenmann 1911 -- (Géry 1977:578 [ref. 1597], Malabarba 1998:230 [ref. 23844], Pavanelli in Reis et al. 2003:154 [ref. 27061], Mirande 2009:11 [ref. 30267] as incertae sedis in Characidae, Terán et al. 2020:10 [ref. 37440], Alves et al. 2020:807 [ref. 38167], Queiroz et al. 2023:1 [ref. 40653], Melo et al. 2024:29 [ref. 41541] in Acestrorhamphinae). Current status: Valid as Psalidodon Eigenmann 1911. Acestrorhamphidae: Acestrorhamphinae.