nudiventris, Parancistrus Rapp Py-Daniel [L. H.] & Zuanon [J.] 2005:573, Figs. 1-2, 4-5 [Neotropical Ichthyology v. 3 (no. 4); ref. 28565] Rio Xingu, bedrock at ilha do Bacabal, 3°23'19"S, 51°43'24"W, Pará State, Brazil. Holotype: INPA 15037. Paratypes: 24 specimens at INPA, ZUEC 4538 (1). Type catalog: Ferraris 2007:279 [ref. 29155]. •Valid as Parancistrus nudiventris Rapp Py-Daniel & Zuanon 2005 -- (Ferraris 2007:279 [ref. 29155], Lujan et al. 2009:53 [ref. 30056]). Current status: Valid as Parancistrus nudiventris Rapp Py-Daniel & Zuanon 2005. Loricariidae: Hypostominae. Distribution: Xingu River, Brazil. Habitat: freshwater.