retropinnis, Trichomycterus Regan [C. T.] 1903:624 [Annals and Magazine of Natural History (Series 7) v. 12 (no. 72) (art. 64); ref. 13401] St. Augustin, Andes of Colombia, elevation 5000 feet. Syntypes: BMNH 1899.8.21.12-13 (2). Type catalog: Ferraris 2007:422 [ref. 29155]. •Valid as Trichomycterus retropinnis Regan 1903 -- (Burgess 1989:323 [ref. 12860] as retropinne, de Pinna & Wosiacki in Reis et al. 2003:283 [ref. 27061], Ferraris 2007:422 [ref. 29155], Castellanos-Morales 2008:312 [ref. 29836], Ardila Rodríguez 2011:10 [ref. 31409], Ardila Rodríguez 2011:21 [ref. 31410], Ardila Rodríguez 2014:11 [ref. 33769], Ardila Rodríguez 2016:12 [ref. 34399], Ardila Rodríguez 2016:16 [ref. 35108], Ardila Rodríguez 2017:11 [ref. 35579], DoNascimiento et al. 2017:70 [ref. 35633], Ardila Rodríguez 2018:10 [ref. 35926]). Current status: Valid as Trichomycterus retropinnis Regan 1903. Trichomycteridae: Trichomycterinae. Distribution: Upper Magdalena River basin, Colombia. Habitat: freshwater.