Doto pinnatifida (Montagu, 1804)

28 September, 2008
Rubh A Croisean, Isle of Muck on the west coast. 
30 mm animal at 12 metres on hydroid Nemertesia antennina. Water temperature 14 °C.
Fuji E900 in Ikelite housing with 2 x Inon CU lenses 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