Diaphoreolis viridis (Forbes, 1840)

5 April, 2009.
Rubh Ruadh, Loch Hourne on the west coast.
20 mm animal at 18 metres.
Water temperature 7.5° C.
Fuji E900 in Ikelite housing, 2 x Inon CU lens and 2 x Inon D-2000 flashes.

for more information about this species go to one of the links below
nudibranchs of the british isles sea slug forum