Diodora graeca

(Linné, 1758)

Description (shell):
Shell strongly reticulate, conical, oval in plan view. Apex about one-third of shell length behind anterior margin, perforated by a single oval opening, with somewhat flared posterior lip (D. graeca-drawing).

Up to 25 x 16 x 10 mm.

White, with radiating bands of brown or green.

Foot oval, straight-sided, with 30-35 epipodial tentacles at base; inner lamella of mantle forming thick papillose skirt which hangs below margin of shell. Body cream coloured, deep orange or red.

Under boulders and overhangs on rocky shores from LWST to 250 m.

Distributed from Faroes to the Canary Islands. Absent from west coast of Norway, North Sea coasts of England and eastern parts of Channel (Distr. D. graeca).