Adalaria loveni (Alder & Hancock, 1854)

18 October, 2014.
Eilean nan Coinean, Sound of Jura on the west coast. 
8 mm animal at 6 m on kelp blade. Water temperature 14°C.
Sony α6000  in Nauticam housing, 50 mm Zeiss 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