nix, Panaqolus Cramer [C. A.] & Rapp Py-Daniel [L. H.] 2015:462, Figs. 1-5 [Neotropical Ichthyology v. 13 (no. 3); ref. 33945] Rondônia, rio Madeira, cofferdam at construction site of Santo Antônio hydroelectric power plant (former Santo Antônio rapids), Brazil, 8°48'06"S, 63°57'00"W. Holotype: INPA 39606. Paratypes: INPA, MZUSP, UFRO-I. Plus non-type specimens. •Valid as Panaqolus nix Cramer & Rapp Py-Daniel 2015 -- (Cramer & Sousa 2016:16 [ref. 34885], Lujan et al. 2017:333 [11] [ref. 35031] subgenus Panafilus Lujan et al. 2017). Current status: Valid as Panaqolus nix Cramer & Rapp Py-Daniel 2015. Loricariidae: Hypostominae. Distribution: Brazil. Habitat: freshwater.