Haimura (Erythrinus macrodon), a large freshwater fish of Guiana, belonging to a small group of fishes (Erythrinina), family Characiniæ (Günther). It measures from 3½ to 4 feet in length; its flesh is firm, and well flavoured; and at times the fish is so abundant that it forms the principal article of food with the Indians, who capture it by hook or in an ingeniously contrived trap. It is very voracious.
The jaws are very powerful, and the teeth are large and can inflict serious wounds: a man's hand has been cut off by them. The haimura particularly abounds near rapids and falls in the upper parts of the rivers of Guiana.