canterai, Colosoma Devincenzi [G. J.] in Devincenzi & Teague 1942:74, fig. [Anales del Museo Nacional de Historia Natural de Montevideo (Serie 2) v. 5 (no. 4); ref. 12268] Río Uruguay, Uruguay. Holotype (unique): apparently lost. Type catalog: Olazarri et al. 1970:3 [ref. 23527], Loureiro et al. 2016:412 [ref. 35150]. Genus should have been spelled Colossoma. •Synonym of Colossoma mitrei (Berg 1895) -- (authors). •Synonym of Piaractus mesopotamicus (Holmberg 1887) -- (Jégu in Reis et al. 2003:188 [ref. 27061], Litz & Koerber 2014:9 [ref. 33622], Mirande & Koerber 2015:15 [ref. 35117], Koerber et al. 2017:23 [ref. 35267], Ota et al. 2024:419 [ref. 40817]). Current status: Synonym of Piaractus mesopotamicus (Holmberg 1887). Serrasalmidae: Colossomatinae. Habitat: freshwater.