This is another tiny aeolid that is virtually impossible to see hiding amidst the tiny hydroids it preys upon and seaweed it inhabits. It is often found close to the Eubranchus rupium, and I have mistaken the two on more than one occasion. Its notable feature is the white patch on its upper dorsum and crusty white patches or sparkles on its cerata. This nudibranch was previously known as Trinchesia albocrusta. Most of these animals were between 3 and 7 mm. Look for their eggs — they are much more noticeable than the animal itself.
