unicolor, Pygidium Regan [C. T.] 1913:468 [Annals and Magazine of Natural History (Series 8) v. 12 (no. 71); ref. 3656] Río Condoto, Colombia. Syntypes: BMNH 1913.10.1.42-43 (2). Type catalog: Ferraris 2007:425 [ref. 29155]. •Valid as Trichomycterus unicolor (Regan 1913) -- (Burgess 1989:323 [ref. 12860], de Pinna & Wosiacki in Reis et al. 2003:285 [ref. 27061], Fernández & Schaefer 2005:73 [ref. 28090], Ferraris 2007:425 [ref. 29155], DoNascimiento et al. 2017:71 [ref. 35633]). Current status: Valid as Trichomycterus unicolor (Regan 1913). Trichomycteridae: Trichomycterinae. Distribution: San Juan River basin, Colombia. Habitat: freshwater.