European flounder


Flounder by Paul Naylor

European flounder

Scientific name: Platichthys flesus
Able to camouflage itself to its surroundings, the European flounder is one of our many amazing flatfish!

Species information


Up to 50cm long.

Conservation status

Least Concern on the IUCN Red List of Endangered Species.

When to see

January - December.


Often found in coastal waters, including estuaries and sometimes freshwater, the European flounder is one of our many native flatfish! This flounder is able to camouflage its upper body to match the surrounding background.

How to identify

Oval shaped flatfish, which can grow up to 50cm long, with a small mouth, pointed snout and square cut tail. Colour varies from a dull brown to a greenish grey, with a white underside. It is usually right-eyed and its eyes lie to the right of the mouth. However this is not always the case which makes identification more difficult!


Common around all British and Irish coasts.

Did you know?

Hybrid individuals have been known to occur through interbreeding between flounder and plaice!

How people can help

If you eat fish always try to choose sustainable fish.