roigi, Trichomycterus Arratia [G.] & Menu-Marque [S.] 1984:494, Figs. 1-10 [Zoologische Jahrbücher. Abteilung für Systematik, Ökologie und Geographie v. 111 (no. 4); ref. 8254] Río Pastos Chicos, Jujuy, northern Argentina, 23°24'S, 66°35'W. Holotype: MLP 8537 [ex 29-VIII-83-1]. Paratypes: KU 20187 (5); MLP 8538 [ex 29-VIII-83-2] (9); authors coll. 230281-1 (13, c&s), 230281-2 (16). Type catalog: Ferraris 2007:423 [ref. 29155], Miquelarena & Nadalin 2014:11 [ref. 33466]. •Valid as Trichomycterus roigi Arratia & Menu-Marque 1984 -- (Fernández & Vari 2000:993 [ref. 25017], Fernández 2000:32 [ref. 26195], Miquelarena & Fernández 2000:44 [ref. 27633], López et al. 2002:60 [ref. 26808], de Pinna & Wosiacki in Reis et al. 2003:284 [ref. 27061], López et al. 2003:40 [ref. 27366], Fernádez & Schaefer 2003:357 [ref. 27407], Menni 2004:82 [ref. 28131], Ferraris 2007:423 [ref. 29155], Sarmiento et al. 2014:193 [ref. 35004], Fernández et al. 2015:12 [ref. 35041], Mirande & Koerber 2015:38 [ref. 35117], García-Melo et al. 2016:237 [ref. 34471], Fernández & Andreoli Bize 2018:366 [ref. 36232]). Current status: Valid as Trichomycterus roigi Arratia & Menu-Marque 1984. Trichomycteridae: Trichomycterinae. Distribution: Argentina and Bolivia. Habitat: freshwater.