Genus Osteoglossum

 
 

Arawana - This species is found in the Amazon River basin and in the Rupununi and Oyapock Rivers in South America as well as in still waters in Guyana.

 
 

Black arawana - Its natural habitat are the still waters of the Negro River basin and the upper Essequibo River basin in South America.

Order : Osteoglossiformes
Family : Osteoglossidae
Genus : Osteoglossum