Coryphella verrucosa (M. Sars, 1829)

4 April, 2015.
Sgeir Mhor, Skye on the west coast.
18 mm animal at 12 metres. Water temperature 6°C.
Sony α6000  in Nauticam housing, Zeiss 50 mm macro 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