asymmetricus, Astyanax Eigenmann [C. H.] 1908:94 [Bulletin of the Museum of Comparative Zoology v. 52 (no. 6); ref. 1221] Tabatinga, Amazonas, Brazil. Syntypes: MCZ 20763 (2), 20766 (1). •Valid as Astyanax asymmetricus Eigenmann 1908 -- (Ortega & Vari 1986:7 [ref. 9708], Géry et al. 1996:8 [ref. 22155]). •Valid as Jupiaba asymmetrica (Eigenmann 1908) -- (Zanata 1997:124 [ref. 24112], Buckup in Reis et al. 2003:142 [ref. 27061], Zanata & Lima 2005:277 [ref. 28235], Pereira & Lucinda 2007:54 [ref. 29302], Netto-Ferreira et al. 2009:66 [ref. 30519], Zanata & Ohara 2009:517 [ref. 30674], Barriga Salazar 2014:107 [ref. 35745], DoNascimiento et al. 2017:62 [ref. 35633], Meza-Vargas et al. 2021:18 [ref. 39298]). Current status: Valid as Jupiaba asymmetrica (Eigenmann 1908). Acestrorhamphidae: Jupiabinae. Distribution: South America: upper Amazon River basin (Brazil, Colombia, Ecuador and Peru). Habitat: freshwater.