Tritonia lineata (Alder & Hancock, 1848)

August 2000.
At Dunbar on the east coast.
During a mid morning dive a couple of dozen of this species were found on a single rock surface at 9 - 10 metres. The animals ranged in size from 10 to 25 mm in length.

for more information about this species go to one of the links below
scottish nudibranchs nudibranchs of the british isles sea slug forum