The shell of an adult Dosinia exoleta can be as large as 60 millimetres (2.4 in).
These shells can be white, yellowish or pale brown, with darker blotches.
They are circular in shape, with a concentric sculpture of fine ribs.
[citation needed] This species is present in the Boreal-Atlantic zone and Mediterranean Sea.
It lives on the lower shore and muddy flats to depths of about 100 metres (330 ft).