Aeolidia papillosa (Linnaeus, 1761)

1 March , 2011.
Portencross Pier, Firth of Clyde on the west coast. 
This group of animals 50 - 25 mm with spawn was the largest aggregation on the pier legs. Many other animals singly and in small groups were found on other legs between 6 - 3 m. Water temperature 6°C.
Sony NEX-5 in Nauticam housing, 18-55mm 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