Knoutsodonta depressa (Alder & Hancock, 1842)

8 July, 2019.
Harlosh Island, Skye on the west coast.
10 mm animal with spawn 20 metres. Water temperature 11°C.
ony 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