[3] Its colouring is mostly green, with mottling of brown, purple or red.

[2] Pirimela denticulata is found from the British Isles to Mauritania, the Mediterranean Sea, the Canary Islands, the Cape Verde Islands, and the Azores.

[4] It lives in burrows in sandy sediments, or on underwater vegetation, at depths of up to 250 m (820 ft).

[5] It was later transferred by William Elford Leach to his new genus Pirimela, which contains only P.

[6] A second species of Pirimela, P. princeps, is now considered to be synonymous with P.