Fin's Fish Guide
The Dusky flounder (Syacium papillosum) is a saltwater fish of the family Paralichthyidae that grows up to 30 cm.
Western Atlantic from the USA to Brazil, over sand and silty bottoms of the continental shelf.
Description
The dusky flounder is a left-eyed flatfish of the family Paralichthyidae (sand flounders) reaching about 30 cm. Both eyes lie on the left side of the head; in adult males the eyes are set wider apart than in females. The brown, marbled upper side gives good camouflage on sand and mud bottoms, where the fish lies half-buried watching for prey. The species lives over soft bottoms of the continental shelf along the western Atlantic coast from the USA to Brazil. On the bottom it ambushes small crustaceans, worms and small fish. With its tasty flesh it is landed as bycatch and traded locally.
Frequently asked questions
How do you recognise the Dusky flounder?
The Dusky flounder has a flatfish-shaped body, is mainly brown and shows a spots pattern. Left-eyed flounder with both eyes on the left side; brown marbled, well camouflaged, the male has more widely spaced eyes.
Where does the Dusky flounder live?
The Dusky flounder lives in the sea (marine waters) and is mostly found around sand or mud bottom. Western Atlantic from the USA to Brazil, over sand and silty bottoms of the continental shelf.
How big does the Dusky flounder get?
The Dusky flounder grows to a maximum of about 30 cm. On average the species is around 20 cm.
Is the Dusky flounder dangerous to humans?
No, the Dusky flounder is harmless to humans. None required: this species is harmless to humans.
Is the Dusky flounder edible?
Yes, the Dusky flounder is commonly eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Syacium
More from the family Paralichthyidae
Want the complete picture on the Dusky flounder?
Point your camera at the fish and Fin names the species in seconds. Free, and the Dusky flounder is one of 12,519 species in the app.