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Pretty similar are
Hypselodoris cf. maritima which has black spots on the white mantle instead of longitudinal black lines
Hypselodoris nigrostriata which has no bands at the mantle margin.
Hypselodoris zephyra which differs by having no bands at the mantle margin, its oblique dark blackish lines, and its simple gills.
More information on Hypselodoris maritima are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 18 August 2017, Hypselodoris maritima (Baba, 1949)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Hypselodoris_maritima.htm