obolus, Knodus Deprá [G. C.], Ota [R. R.], Vitorino Júnior [O. B.] & Ferreira [K. M.] 2021:14, Figs. 6-8 [Neotropical Ichthyology v. 19 (no. 1): e200106; ref. 38180] Ribeirão Dois Irmãos, tributary to the rio do Peixe, tributary to the rio das Almas, tributary to the rio Maranhão, tributary to the rio Tocantins, Municipality of Pirenópolis, Goiás State, Brazil, 15°42'50"S, 49°2'39"W, elevation 713 meters. Holotype: NUP 22667. Paratypes: CPUFMT, MCP, NUP. Plus additional non-type material. Type catalog: Oliveira et al. 2022:8 [ref. 39255]. •Valid as Knodus obolus Deprá, Ota, Vitorino Júnior & Ferreira 2021. Current status: Valid as Knodus obolus Deprá, Ota, Vitorino Júnior & Ferreira 2021. Characidae: Stevardiinae. Distribution: South America: das Almas River drainage, upper Tocantins River basin (Brazil). Habitat: freshwater.