altispinis, Percichthys Regan [C. T.] 1905:390, Pl. 5 (fig. 1) [Revue Suisse de Zoologie v. 13; ref. 15384] Río Colorado, Buenos Aires, Argentina. Syntypes: BMNH 1905.3.18.1 [ex MHNG] (1), MHNG 677.100 (2). Type catalog: Mahnert 1976:474 [ref. 21535], Weber 1998:13 [ref. 32707]. •Valid as Percichthys altispinis Regan 1905 -- (López et al. 2002:61 [ref. 26808], Arratia in Reis et al. 2003:596 [ref. 27061], López et al. 2003:73 [ref. 27366], Menni 2004:87 [ref. 28131]). •Synonym of Percichthys trucha (Valenciennes 1833) -- (López-Arbarello 2004:345 [ref. 28106], Koerber 2014:13 [ref. 33621], Mirande & Koerber 2015:55 [ref. 35117]). Current status: Synonym of Percichthys trucha (Valenciennes 1833). Percichthyidae. Habitat: freshwater.