oliveirai, Bathycetopsis Lundberg [J. G.] & Rapp Py-Daniel [L. H.] 1994:383, Figs. 1, 3-4 [Copeia 1994 (no. 2); ref. 21515] Rio Solimões north of Ilha da Marchantaria, about 15 kilometers from mouth of Rio Negro at Manaus (3°15'S, 60°00'W), Amazonas, Brazil, elevation about 15 meters. Holotype: INPA 4439. Paratypes: DU F1170 (1, c&s); INPA 4533 (1), 4668-69 (1, 2), 7689 (2); MZUSP 44068 (1); USNM 325618 (1). Type catalog: Ferraris 2007:132 [ref. 29155]. •Valid as Bathycetopsis oliveirai Lundberg & Rapp Py-Daniel 1994 -- (de Pinna & Vari 1995:3 [ref. 21651], Chang & Ortega 1995:4 [ref. 24302], Vari & Ferraris in Reis et al. 2003:257 [ref. 27061], Proudlove 2006:268 [ref. 28992]). •Valid as Cetopsis oliveirai (Lundberg & Rapp Py-Daniel 1994) -- (Vari et al. 2005:179 [ref. 28270], de Pinna et al. 2007:804 [ref. 29247], Ferraris 2007:132 [ref. 29155], Barriga Salazar 2014:110 [ref. 35745], Sarmiento et al. 2014:151, 190 [ref. 35004], see DoNascimiento et al. 2017:[20] [ref. 35679], Abrahão & de Pinna 2018:117 [ref. 35957], Meza-Vargas et al. 2021:24 [ref. 39298]). Current status: Valid as Cetopsis oliveirai (Lundberg & Rapp Py-Daniel 1994). Cetopsidae: Cetopsinae. Distribution: South America: middle and upper Amazon River basin (Brazil, Ecuador, Bolivia and Peru). Habitat: freshwater.