Click the thumbnail photos to enhance!
Pretty similar are:
Trapania cf. euryeia which lacks the minute cream spots on the brown background.
Trapania toddi which has a white background colour with reticulate brown patches in which are small white spots.
More information on Trapania euryeia are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 8 May 2017, Trapania euryeia Gosliner & Fahey, 2008
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Trapania_euryeia.htm