<em>Hanleya hanleyi</em> (Bean in Thorpe, 1844)
Hanleya hanleyi - detail of valve surface
Hanleya henleyi - dorsal view
Relatively rare species. It occurs from the Arctic Ocean and Barents Seas in the north, around the coasts of Norway, Sweden, Greenland and as far south as the Mediterranean. Present all around the British Isles.
Occurs mainly on sandy bottoms attached to small shells and pebbles from 15m to 300m depth (though most common below 100m). It feeds by grazing material from the rock surface using its radula.
Size: Up to about 22mm long. Shape: Relatively elongate species. It has a narrow girdle with the shell making up 80% of the width.