Flatfish
Flounder
Platichthys flesus
How to spot it
A dull brown flatfish of estuaries and tidal rivers, tolerating fresh water — unusual for a flatfish. Rough bony tubercles run along the bases of the dorsal and anal fins and along the lateral line; any orange spots are pale and scattered, unlike the vivid orange of plaice.
Usually seen at
10-40 m (median 24 m)
Size
Medium (10-50 cm)
Habitat
Sandy bottom
Behaviour
On bottom
Where it's seen
Occurrence records around the UK and north-east Atlantic (OBIS).