November 22, 2007
From: Lawrence Neal
Locality: Pom Pom Island, Semporna, 12 m, Sabah, Malaysia, Celebes Sea, 23 October, 2007, Slope of small pieces of coral rubble on a fringing reef. Length: 10 mm. Photographer: Lawrence Neal.
email@example.comNeal, L., 2007 (Nov 22) Durvilledoris similaris from Malaysia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21157
As you may have guessed, some of these small purple species are not easy to differentiate. In fact I am only 100% comfortable with my identifications of some species in this group when I dissect the animal and look at its teeth. However the animal in your photo is a pretty perfect match for Durvilledoris similaris so I think on this occasion I can be 98% sure you are right.