Fjordia browni (Picton, 1980)

27 April, 2018.
Rubh a Chroisein, island of Muck on the west coast.
20 mm animal at 18 metres.
Water temperature 7°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
nudibranchs of the british isles sea slug forum