Goniodoris nodosa (Montagu, 1808)

29 March, 2015.
Black Lass Cove South, Loch Fyne on the west coast .
25 mm spawn spirals at 12 metres - several animals were seen close by.
Water temperature 7°C.
Sony α6000  in Nauticam housing, 50 mm Zeiss 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