Cadlina laevis (Linnaeus, 1767)

9 September, 2012.
Buck Rock, Loch Fyne on the west coast.
30 mm animal found at 14 metres. Water temperature 13°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
OPK - Opistobranquis nudibranchs of the british isles sea slug forum
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