Fjordia browni (Picton, 1980)

18 April, 2014.
Inverkip Pier, Firth of Clyde on the west coast.
18 mm animal at 8 metres. Water temperature 8°C.
Sony NEX-5 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
nudibranchs of the british isles sea slug forum