guianensis, Pygidium Eigenmann [C. H.] 1909:11 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1222] Aruataima Falls, upper Potaro River, Guyana. Holotype: FMNH 52676 [ex CM 1003]. Paratypes: FMNH 53721 (1), CAS 58257 [ex IU 11710] (1). Type catalog: Henn 1928:80 [ref. 12305], Ibarra & Stewart 1987:72 [ref. 12367], Ferraris 2007:418 [ref. 29155]. •Valid as Trichomycterus guianensis (Eigenmann 1909) (often as guianense) -- (Burgess 1989:322 [ref. 12860], Fernández & Bichuette 2002:274 [ref. 26539], Lasso & Provenzano 2003:1146 [ref. 26951], de Pinna & Wosiacki in Reis et al. 2003:281 [ref. 27061], Ferraris 2007:418 [ref. 29155]). Current status: Valid as Trichomycterus guianensis (Eigenmann 1909). Trichomycteridae: Trichomycterinae. Distribution: River drainages in the Guianas and Venezuela: French Guiana, Guyana and Venezuela. Habitat: freshwater.