The Redfin trahira (Erythrinus erythrinus) is a freshwater fish of the family Erythrinidae that grows up to 20 cm.
Widespread in freshwater of tropical South America, mainly in the Amazon and Orinoco basins and coastal rivers of the Guianas.
Description
Erythrinus erythrinus is an elongate freshwater predator of the family Erythrinidae, widespread in tropical South America, especially the Amazon and Orinoco basins. It grows to about 20 cm and has a cylindrical, brownish-red body with a large, small-toothed mouth. Living in slow-moving and still waters, it can gulp air with its swim bladder, allowing it to survive oxygen-poor water and even short journeys over land between pools. A nocturnal predator, it hunts small fishes, insects and crustaceans. The species is only rarely eaten.
Frequently asked questions
How do you recognise the Redfin trahira?
The Redfin trahira has an elongate, eel-like body, is mainly brown and shows a plain pattern. Elongate predator that can gulp air with its swim bladder and so tolerates oxygen-poor water; can cover short distances over land between pools.
Where does the Redfin trahira live?
The Redfin trahira lives in fresh water and is mostly found around sand or mud bottom. Widespread in freshwater of tropical South America, mainly in the Amazon and Orinoco basins and coastal rivers of the Guianas.
How big does the Redfin trahira get?
The Redfin trahira grows to a maximum of about 20 cm.
Is the Redfin trahira dangerous to humans?
No, the Redfin trahira is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Redfin trahira edible?
The Redfin trahira is rarely eaten.
More photos

Want the complete picture on the Redfin trahira?
Point your camera at the fish and Fin names the species in seconds. Free, and the Redfin trahira is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Erythrinidae

Want the complete picture on the Redfin trahira?
Point your camera at the fish and Fin names the species in seconds. Free, and the Redfin trahira is one of 12,519 species in the app.