Carlastyanax Géry [J.] 1972:16 Masc. Astyanax aurocaudatus Eigenmann 1913. Type by original designation (also monotypic). •Synonym of Astyanax Baird & Girard 1854 -- (Ruiz-C. & Román-Valenca 2006:50 [ref. 28891]). •Valid as Carlastyanax Géry 1972 -- (Géry 1977:379 [ref. 1597], Pavanelli in Reis et al. 2003:120 [ref. 27061], Mirande et al. 2013:747 [ref. 33366], Thomaz et al. 2015:8 [ref. 33893] in Stevardiinae, tribe Creagrutini, Melo et al. 2024:11 [ref. 41541] in Creagrutinae). Current status: Valid as Carlastyanax Géry 1972. Stevardiidae: Creagrutinae.