levis, Myleus Eigenmann [C. H.] & McAtee [W. L.] in Eigenmann, McAtee & Ward 1907:142, Pl. 42 (fig. 2) [Annals of the Carnegie Museum v. 4 (no. 2) (art. 7); ref. 1261] Bahia Negra, Paraguay. Holotype (unique): CAS 62107 [ex IU 10156]. •Valid as Myleus levis Eigenmann & McAtee 1907 -- (Ovchynnyk 1967:30 [ref. 37559], Ortega & Vari 1986:9 [ref. 9708], Jégu in Reis et al. 2003:185 [ref. 27061]). •Valid as Myloplus levis (Eigenmann & McAtee 1907) -- (Britski et al. 1999:58 [ref. 24147], Sarmiento et al. 2014:187 [ref. 35004], Andrade et al. 2016:154 [ref. 34307], Koerber et al. 2017:22 [ref. 35267], Andrade et al. 2019:[8] [ref. 37167], Meza-Vargas et al. 2021:17 [ref. 39298], Ota et al. 2024:413 [ref. 40817]). Current status: Valid as Myloplus levis (Eigenmann & McAtee 1907). Serrasalmidae: Myleinae. Distribution: South America: Paraguay-Paraná River basin (Brazil, Bolivia, Paraguay and Peru). Habitat: freshwater.