(Alder & Hancock, 1844)
18 October, 2015.
Nipple Rock, Hoy in the Orkney Islands.
10 mm animal at 15 metres. 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