Jewel anemone  (Corynactis viridis)

This anemone is common on the south and western coasts of Britain (4) and reaches the northern extreme of its range in the Shetland Isles (3). It is found as far south as the Mediterranean (4).

Found on rocks in shaded places such as beneath overhangs and in crevices on the lower shore (2), extending down to the sublittoral to depths of about 80 m (3).