Jorunna tomentosa (Cuvier, 1804)

11 July, 2015.
The wreck of the VIC 63, Barra in the Outer Hebrides on the west coast of Scotland.
2 x 75 mm mating animals at 10 metres on the hull. Water temperature 11°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