Click the thumbnail photos to enhance!
Pretty similar is Kaloplocamus ramosus (Cantraine, 1835) [Doris], which has the same body colour, but differs by relatively short lateral and velar appendages.
Let me quote IPN at page 106: "This widespread species needs further study to determine whether it is a single species or a complex of several distinct ones."
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426 pp.
There are pictures of similar specimens at NUDIPIXEL from Flores, Indonesia, and from Puerto Galera.
How to cite:
Köhler, E. (2017), published 19 September 2017, Kaloplocamus sp. 02 Genus: Bergh, 1892
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Kaloplocamus_sp_02.htm