Adalaria proxima (Alder & Hancock, 1854)

22 August, 2014.
The cliff west of Lochaline Pier, Sound of Mull on the west coast.
5 mm animal, one of several, at 6 m on the kelp blades in the shallows. Water temperature 13°C.
Sony α6000  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