oharai, Osteogaster Tencatt [L. F. C.], Carvalho [V. de], Silva [H. P. da] & Britto [M. R.] 2025:5, Figs. 1-11 [Neotropical Ichthyology v. 23 (no. 2): e240134; ref. 42245] Stream tributary of the rio Aripuanã, upstream Salto das Andorinhas and Dardanelos waterfalls, rio Madeira basin, Aripuanã, Mato Grosso, Brazil, 10°16'46"S, 59°33'08"W. Holotype: MNRJ 55884. Paratypes: CPUFMT, INPA, UFRO. Plus additional non-type material. •Valid as Osteogaster oharai Tencatt, Carvalho, Silva & Britto 2025. Current status: Valid as Osteogaster oharai Tencatt, Carvalho, Silva & Britto 2025. Callichthyidae: Corydoradinae. Distribution: South America: Aripuanã River drainage, Madeira River basin, and Juruena River drainage, Tapajós River basin, Mato Grosso State, Brazil. Habitat: freshwater.