onca, Characidium Melo [M. R. S.], Brito Ribeiro [M. C. L.] & Lima [F. C. T.] 2021:4, Figs. 1-4 [Neotropical Ichthyology v. 19 (no. 1): e200061; ref. 38125] Córrego Taquara at Reserva Ecológica do IBGE, tributary of ribeirão Gama, tributary of Lago Paranoá, tributary of the left bank of rio São Bartolomeu, upper rio Paraná basin, Brasília, Distrito Federal, Brazil, 15°54'55.04"S, 47°54'23.87"W. Holotype: MZUSP 125807. Paratypes: MNRJ, MZUSP, ZUEC. Plus additional non-type material. •Valid as Characidium onca Melo, Brito Ribeiro & Lima 2021 -- (Stabile et al. 2024:10 [ref. 41591]). Current status: Valid as Characidium onca Melo, Brito Ribeiro & Lima 2021. Crenuchidae: Characidiinae. Distribution: South America: São Bartolomeu River drainage, Paranaíba River system, upper rio Paraná basin, Distrito Federal, Brazil. Habitat: freshwater.