Elysia viridis (Montagu, 1804)

28 October, 2007.
Jenny's Reef on the west coast .
A 25 mm long specimen, one of many, found at 6 metres. Water temperature 12°C.
Fuji E900 camera in Ikelite housing, 2 x Inon D-2000 flashes and 2 x Inon CU lenses.

for more information about this species go to one of the links below
OPK - Opistobranquis Encyclopedia of Marine Life of Britain and Ireland sea slug forum