PISCES : PLEURONECTIFORMES : PleuronectidaeBONY FISH

Platichthys flesus (Linnaeus, 1758)

Flounder


Description: This flatfish is oval in shape and is usually right-eyed. Most adults are between 25-30cm in length however it can be up to 50cm. The upper surface is usually dull brown in colour with reddish-brown blotches and the underside is white. Often the colour is camouflaged with the seabed. There are rows of bony tubercles along the lateral line and the bases of the dorsal and anal fins.

Habitat: The flounder usually lives on muddy seabeds from the low shore to at least 50m depth. It feeds on a variety of bottom-living animals e.g. crustaceans, worms and molluscs. Like the plaice, juveniles live in shallow water close to the shore. It is very tolerant of reduced salinities and is frequently found in estuaries.

Distribution: Occurs all around the coasts of Britain and Ireland.

Similar Species: The flounder is similar is size and shape to the plaice and dab however bony tubercles along the lateral line and at the bases of the dorsal and anal fins are distinctive of the flounder.

Key Identification Features:

Distribution Map from BioMar data for Ireland - Google Earth map:  download this placemark (not got Google Earth installed?)

Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.


 Picton, B.E. & Morrow, C.C., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland
http://www.habitas.org.uk/marinelife/species.asp?item=ZG8990

[Home]