Thuridilla of some kind?

[Quero]

First, apologies for the poor quality of the photo.

This sea slug doesn't seem to have a visible gill, and since it looks like it's curled up on the sides, I'm thinking it might be some kind of thuridilla. But I can't find anything that looks like it in my books. Hoping one of you can help.

Location: Manado--Bethlehem (dive site)
Depth: less than 10 meters, in surge
Environment: volcanic+limestone sandy bottom with some algae, corals and sponges growing on debris; this spot had a lot of old cables lying around; daytime dive
Size: about 5 cms or less

 

[Vie]

Marcia, I think it's probably a Thuridilla albopustulosa.

http://www.seaslugforum.net/factsheet.cfm?base=thuralbo

 

[Quero]

Marcia, I think it's probably a Thuridilla albopustulosa.

http://www.seaslugforum.net/factsheet.cfm?base=thuralbo

Yeah. I had come to the same conclusion. The albopustulosa does seem to come in a variety of designs and degrees of purple. Thanks for confirming my i.d.!