cuao, Pygidianops Schaefer [S. A.], Provenzano [F.], de Pinna [M. C. C.] & Baskin [J. N.] 2005:5, Figs. 1-3 [American Museum Novitates No. 3496; ref. 28427] Río Cuao at Raudal Guacamaya, 8.1 miles upstream from Raudal El Danto, 5°07.71'N, 67°31.53'W, Estado Amazonas, Venezuela. Holotype: MBUCV-V-30917. Paratypes:AMNH 232970 (23), 232978 (11), 232933 (4), 233036 (6); MBUCV-V-29843 (1), 29922 (10), 29933 (4), 29977 (3), 29997 (7), 30105 (4); MZUSP 82104 (3). Type catalog: Ferraris 2007:412 [ref. 29155]. •Valid as Pygidianops cuao Schaefer, Provenzano, de Pinna & Baskin 2005 -- (Ferraris 2007:412 [ref. 29155], de Pinna & Kirovsky 2011:502 [ref. 31517]). Current status: Valid as Pygidianops cuao Schaefer, Provenzano, de Pinna & Baskin 2005. Trichomycteridae: Glanapteryginae. Distribution: Cuao River drainage basin, Venezuela. Habitat: freshwater.