Armina semperi (Bergh, 1861) [Pleurophyllidia]

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Armina semperi can be distinguished from other arminaceans by the pale blue foot with a yellow border and the irregular dark patches on the mantle. The apices of the rhinophores are orange.
I misidentified some of the juvenile specimens and posted them on 18 December 2003 as Dermatobranchus sp. A.
More information on Armina semperi are on Bill Rudman's Sea Slug Forum!
How to cite:
Köhler, E. (2016), published 30 July 2016, Armina semperi (Bergh, 1861)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Armina_semperi.htm