tenue, Pygidium Fowler [H. W.] 1945:6, Figs. 7-9 [Notulae Naturae (Philadelphia) No. 159; ref. 13141] Acobamba, near Tarma, Río Ucayali basin, Peru, elevation 2000 meters. Holotype (unique): ANSP 71638. Type catalog: Böhlke 1984:163 [ref. 13621], Ferraris 2007:424 [ref. 29155]. Considered by Fowler 1954 to be subjectively invalid; preoccupied in Trichomycterus by Trichomycterus tenuis Weyenbergh 1877; replaced by Trichomycterus taeniops Fowler 1954. •Valid as Trichomycterus tenue (Fowler 1945) -- (Arratia & Menu-Marque 1984:515 [ref. 8254], Ortega & Vari 1986:16 [ref. 9708], Menni 2004:82 [ref. 28131], Fernández et al. 2015:12 [ref. 35041] as tenue and cf. tenue). •In the synonymy of Trichomycterus taeniops Fowler 1954 -- (de Pinna & Wosiacki in Reis et al. 2003:285 [ref. 27061], Ferraris 2007:424 [ref. 29155]). 2°Homonym. Current status: Synonym of Trichomycterus taeniops Fowler 1954. Trichomycteridae: Trichomycterinae. Habitat: freshwater.