Antiopella cristata (delle Chiaje, 1841)

13 August, 2014.
The south end of Calve Island, Sound of Mull on the west coast .
75 mm animal, one of two very large specimens seen on the gravel around 16 metres. Spawn masses also seen adjacent. Water temperature 13°C.
Sony α6000  in Nauticam housing, 18-55mm lens, SubSee +10 dioptre 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