The Triangular flounder (Paralichthys isosceles) is a saltwater fish of the family Paralichthyidae that grows up to 32 cm.
Description
The Triangular flounder is a left-eyed flounder (Paralichthyidae) from sand and mud bottoms of the southwestern Atlantic around South America. The species grows to about 35 cm and has a strongly flattened, oval body with both eyes on the left side; the upper side is sand-coloured and mottled for camouflage, the underside pale. As an ambush predator it lies half-buried on the bottom and seizes passing small fish, shrimp and worms. It is a valued food fish. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Triangular flounder?
The Triangular flounder has a flatfish-shaped body, is mainly brown and shows a spots pattern.
Where does the Triangular flounder live?
The Triangular flounder lives in the sea (marine waters) and is mostly found around sand or mud bottom. South America: Argentina, Brazil, Uruguay
How big does the Triangular flounder get?
The Triangular flounder grows to a maximum of about 32 cm.
Is the Triangular flounder dangerous to humans?
No, the Triangular flounder 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.

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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Paralichthys
More from the family Paralichthyidae

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