barbatus, Xyliphius Alonso de Arámburu [A. S.] & Arámburu [R. H.] 1962:219, Figs. 1-2 [Physis (Buenos Aires) v. 23 (no. 65); ref. 5772] Río Paraná at Rosario, Province Santa Fe, Argentina. Holotype: MLP 6798 [ex 12-VII-60-26]. Paratypes: MLP 2799 [29-V-40-56] (1). Type catalog: Ferraris 2007:62 [ref. 29155], Miquelarena & Nadalin 2014:15 [ref. 33466]. •Valid as Xyliphius barbatus Alonso de Arámburu & Arámburu 1962 -- (Mees 1988:90 [ref. 6401], Burgess 1989:303 [ref. 12860], Gómez & Chebez 1996:57 [ref. 23791], Friel in Reis et al. 2003:265 [ref. 27061], López et al. 2003:64 [ref. 27366], Menni 2004:82 [ref. 28131], Ferraris 2007:62 [ref. 29155], Calviño & Castello 2008:55 [ref. 29670], Figueiredo & Britto 2010:105 [ref. 30760], Koerber & Litz 2014:3 [ref. 34967], Mirande & Koerber 2015:36 [ref. 35117], Koerber & Litz 2016:4 [ref. 35098], Carvalho et al. 2017:26 [ref. 35187], Koerber et al. 2017:54 [ref. 35267], Koerber et al. 2017:6 [ref. 35632], Koerber et al. 2019:6 [ref. 36736], Koerber et al. 2020:7 [ref. 37480], Mirande & Koerber 2020:2 [ref. 37594], Koerber et al. 2021:7 [ref. 38894], Koerber et al. 2023:8 [ref. 40355], Terán et al. 2024:1087 [ref. 41358]). Current status: Valid as Xyliphius barbatus Alonso de Arámburu & Arámburu 1962. Aspredinidae: Aspredininae. Distribution: South America: Paraguay-Paraná River basin (Argentina, Paraguay and ?Uruguay). IUCN (2023): Near Threatened. Habitat: freshwater.