Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species related to Piaractus mesopotamicus: [ 4 ] records

edulis, Myletes Castelnau [F. L.] 1855:68 [Animaux nouveaux or rares v. 2; ref. 766] No distinguishing features provided; for a species from Paraguay. •In the synonymy 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]). Nomen Nudum. Current status: Synonym of Piaractus mesopotamicus (Holmberg 1887). Serrasalmidae: Colossomatinae.

mesopotamicus, Myletes (Myleus) Holmberg [E. L.] 1887:387 [Boletín de la Academia Nacional de Ciencias de Córdoba v. 10; ref. 27229] Río Uruguay and Río Baradero, afluente del Rio Paraná, Uruguay. Syntypes: (2, whereabouts unknown). Also appeared in Holmberg 1891:193 [ref. 2192]. •Valid as Piaractus mesopotamicus (Holmberg 1887) -- (Gómez & Chebez 1996:51 [ref. 23791], Britski et al. 1999:62 [ref. 24147], Fuller et al. 1999:188 [ref. 25838], López et al. 2003:34 [ref. 27366], Jégu in Reis et al. 2003:188 [ref. 27061], Menni 2004:79 [ref. 28131], Mirande 2010:472 [ref. 31006], Litz & Koerber 2014:9 [ref. 33622], Sarmiento et al. 2014:91, 187 [ref. 35004], Mirande & Koerber 2015:15 [ref. 35117], Nión et al. 2016:28 [ref. 35565], Koerber et al. 2017:23 [ref. 35267], dos Reis et al. 2020:463 [ref. 38364], Bertaco & Azevedo 2023:4 [ref. 39997], Bertaco et al. 2023:9 [ref. 40740], Loureiro et al. 2023:36 [ref. 40506], Ota et al. 2024:419 [ref. 40817], Goren 2025:21 [ref. 42464]). Current status: Valid as Piaractus mesopotamicus (Holmberg 1887). Serrasalmidae: Colossomatinae. Distribution: South America: Paraguay-Paraná River basin (Argentina, Bolivia, Brazil, Paraguay and Uruguay). Introduced elsewhere. Habitat: freshwater.

mitrei, Myletes Berg [C.] 1895:149 [Anales del Museo Nacional de Historia Natural de Buenos Aires v. 4; ref. 14575] Río Paraná, San Pedro, Argentina. Syntypes: BMNH 1928.1.25.6-7 [ex MACN] (2); MACN 4911 (1), 5690 (1); MHNM. Type catalog: Braga & Piacentino 1994:103 [ref. 23697], Loureiro et al. 2016:412 [ref. 35150]. •Synonym of Piaractus mesopotamicus (Holmberg 1887) -- (Britski et al. 1999:62 [ref. 24147], Fuller et al. 1999:189 [ref. 25838] as metrei, Jégu in Reis et al. 2003:188 [ref. 27061], López et al. 2003:34 [ref. 27366], 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.

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.