boylei, Pygidium Nichols [J. T.] 1956:1, Fig. 1 [American Museum Novitates No. 1760; ref. 12215] Río Grande in Tilcara, Jujuy Province, Argentina, 23°23'S, 65°23'W, elevation 8000 feet. Holotype: AMNH 20299. Paratypes: AMNH 17271 (3). Type catalog: Ferraris 2007:416 [ref. 29155]. •Valid as Trichomycterus boylei (Nichols 1956) -- (Arratia & Menu-Marque 1984:506 [ref. 8254], Burgess 1989:321 [ref. 12860], Fernandez 2000:352 [ref. 25077], Fernández 2000:32 [ref. 26195], Fernández & Vari 2002:742 [ref. 26231], Miquelarena & Fernández 2000:44 [ref. 27633], de Pinna & Wosiacki in Reis et al. 2003:280 [ref. 27061], López et al. 2003:39 [ref. 27366], Fernádez & Schaefer 2003:357 [ref. 27407], Menni 2004:82 [ref. 28131], Fernández & Osinaga 2006:387 [ref. 28738], Ferraris 2007:416 [ref. 29155], Sarmiento et al. 2014:193 [ref. 35004], Fernández et al. 2015:10 [ref. 35041], Mirande & Koerber 2015:37 [ref. 35117], García-Melo et al. 2016:237 [ref. 34471], Koerber et al. 2017:55 [ref. 35267], Fernández & Andreoli Bize 2018:366 [ref. 36232]). Current status: Valid as Trichomycterus boylei (Nichols 1956). Trichomycteridae: Trichomycterinae. Distribution: Argentina, Paraguay and Bolivia. Habitat: freshwater.