xanthellus, Baryancistrus Rapp Py-Daniel [L. H.], Zuanon [J.] & de Oliveira [R. R.] 2011:242, Figs. 1-2 [Neotropical Ichthyology v. 9 (no. 2); ref. 31383] Rio Xingu, in the vicinity of the cachoeira Buraco do Inferno, 3°27'07"S, 51°41'53"W, Senador José Porfirio, Pará, Brazil. Holotype: INPA 33849. Paratypes: many at ANSP, INPA, MCP, MNRJ, MPEG, MZUSP, ROM, ZUEC. •Valid as Baryancistrus xanthellus Rapp Py-Daniel, Zuanon & de Oliveira 2011 -- (de Oliveira et al. 2019:491 [ref. 36981], Magalhaes et al. 2021:5 [ref. 38601] ). Current status: Valid as Baryancistrus xanthellus Rapp Py-Daniel, Zuanon & de Oliveira 2011. Loricariidae: Hypostominae. Distribution: South America: Rio Xingu system (Amazonas, Brazil). Habitat: freshwater.