cupariensis, Knodus de Sousa [D. J. A.], Silva-Oliveira [C.], Canto [A. L. C.] & Ribeiro [F. R. V.] 2020:576, Figs. 1-4 [Zootaxa 4747 (no. 3); ref. 37361] Unnamed stream tributary of rio Tinga, rio Cupari drainage, rio Tapajós basin, Rurópolis, Pará State, Brazil, 4°05'10.80"S, 54°51'10.60"W. Holotype: INPA 59396. Paratypes: INPA, MCP, UFOPA, ZUEC. •Valid as Knodus cupariensis de Sousa, Silva-Oliveira, Canto & Ribeiro 2020 -- (Deprá et al. 2021:3 [ref. 38180], Aguiar et al. 2022:19 [ref. 39329], Ferreira & Ohara 2023:373 [ref. 39833], Silva-Oliveira et al. 2023:1 [ref. 40192]). Current status: Valid as Knodus cupariensis de Sousa, Silva-Oliveira, Canto & Ribeiro 2020. Characidae: Stevardiinae. Distribution: South America: Rio Cupari drainage, lower Tapajós River basin, Pará State, Brazil. Habitat: freshwater.