Coryphella verrucosa (M. Sars, 1829)

4 November, 2007.
Imperial Reef, Garvellachs on the west coast.. 
One of several animals found between 26 - 30m, a 20 mm long animal with a bifurcated rhinophore.
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