Dendronotus lacteus (Thompson, 1840)

16 November, 2008.
Mushroom Rock, Garvellach islands on the west coast.
This 65 mm animal, one of several, was found at 15 metres. Water temperature 11.5° C.
Fuji E900 in Ikelite housing, Inon CU lens and 2 x Inon D-2000 flashes.

for more information about this species go to one of the links below
OPK - Opistobranquis

 nudibranchs of the british isles sea slug forum