Pacus, Palometas, Tambaqui, Piratinga, and Silver Dollars/Red Hooks



genus Acnodon

Acnodon normani

Gosline 1951


Amazon, Xingu and Tocantins R. basins, Brazil

Sheep pacu

Acnodon oligacanthus

Müller & Troschel 1844


Northern Guiana Shield rivers: French Guiana, Guyana and Suriname

Sheep pacu

genus Colossoma

Colossoma macropomum

Cuvier 1816


Amazon and Orinoco basins, introduced elsewhere: Bolivia, Brazil, Colombia, Peru and Venezuela. Introduced or raised in Cuba, Dominican Republic, Honduras, Jamaica and Panama

Vulgar name: Tambaqui

genus Piaractus

Piaractus brachypomus 

Cuvier 1818


Amazon and Orinoco R. basins: Argentina, Bolivia, Brazil, Colombia, Peru and Venezuela

Vulgar name:  Pirapitinga

Piaractus mesopotamicus

Holmberg 1887


Paraguay-Paraná R. basin: Argentina, Boliva, Brazil, Paraguay and Uruguay

Vulgar name: Pirapitinga

genus Mylesinus

Mylesinus paraschomburgkii 

Jégu, Santos & Ferreira 1989


Left tributaries of lower Amazon R., Araguaia R.: Brazi

Mylesinus paucisquamatus

Jégu & Santos 1988


Tocantins R. basin, Brazil

Mylesinus schomburgkii 

Valenciennes 1850


Essequibo and Orinoco R. basins: Guyana and Venezuela

genus Myleus

Myleus altipinnis

Valenciennes 1850


Săo Franciso R. basin, Brazil

Myleus arnoldi 

Ahl 1936


Amazon, Xingu and Tocantins R. basins, Brazil

Myleus knerii

Steindachner 1881


Maroni R. basin, French Guiana

Myleus levis 

Eigenmann & McAtee 1907


Paraguay-Paraná R. basin: Brazil and Paraguay

Myleus lobatus 

Valenciennes 1850


Amazon and Orinoco R. basins: Brazil, Peru and Venezuela

Myleus micans

Lütken 1875


Săo Francisco R. basin, Brazil

Myleus pacu

Jardine & Schomburgk 1841


Essequibo R., Guyana

Type unique

Myleus rhomboidalis

Cuvier 1818


Amazon R. basin and n. and e. Guiana Shield rivers: Brazil, French Guiana, Guyana, Suriname and Venezuela

Myleus schomburgkii

Jardine & Schomburgki 1941


Middle and lower Amazon R. basin, Nanay R., upper Orinoco R. basin: Brazil, Peru, Suriname (?) and Venezuela

Vulgar name: Disc tetra

Myleus setiger

Müller & Troschel 1844


Tributaries of lower and middle Amazon R. basin, orinoco R. basin, upper Orinoco R. and tributaries, and n. and e. Guiana Shield rivers: Brazil, Guyana, Suriname and Venezuela

Myleus ternetzi

Norman 1929


French Guiana

Myleus tiete

Eigenmann & Norris 1900


Paraguay-Paraná R. basin: Argentina, Brazil and Paraguay

Myleus torquatus

Kner 1858


Amazon, Negro and Orinoco R. basins: Brazil and Venezuela



genus Myloplus

Myloplus asterias 

Müller & Troschel 1844


Amazon R. basin, n. and e. Guiana Shield rivers: Argentina, Brazil and Guyana

Myloplus planquettei

Jégu, Keith & Le Bail 2003


Mana and Maroni basins, French Guiana and Surinam, and Essequibo basin, Guiana

Myloplus rubripinnis

Müller & Troschel, 1844



Vulgar name: Redhook Myleus

genus Mylossoma

Mylossoma acanthogaster

Valenciennes 1850


Lake Maracaibo basin, Venezuela

Mylossoma aureum

Spix & Agassiz 1829



Fig 1,   Fig 2 and Fig 3

Mylossoma duriventre

Cuvier 1818


Amazon, Orinoco and Paraguay-Paraná R. basins: Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, Peru and Venezuela

Fig 1, Fig 2, Fig 3, Fig 4, and Fig 5

genus Ossubtus

Ossubtus xinguense

Jégu 1992


Xingu R. basin, Brazil

Vulgar name: Parrot pacu

genus Tometes

Tometes lebaili

Jégu, Keith & Belmont-Jégu 2002


Guianas and Suriname

Tometes makue

Jégu, Santos & Belmont-Jégu 2002


Middle and upper Negro R. and Orinoco R. basins: Brazil and Venezuela

Tometes trilobatus

Valenciennes 1850


Northeastern Guiana Shield rivers: Brazil and French Guiana

genus Utiaritichthys

Utiaritichthys longidorsalis 

Jégu, Tito de Morais & Santos 1992


Madeira R. basin, Brazil

Utiaritichthys sennaebragai 

Miranda Ribeiro 1937


 Right tributaries of middle and lower Amazon R. and lower Orinoco R. basin: Brazil and Venezuela









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UPDATED: 12/28/2011