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Jorunna sp. 09 has a distinctive enlarged and pointed 'snout' and an elevated gill pocket, it might be a very tiny Jorunna rubescens (Bergh, 1876),
I have no idea how juveniles of Jorunna rubescens do look like! I keep it for now as Jorunna sp. 09 Genus: Bergh, 1876.
How to cite:
Köhler, E. (2017), published 31 March 2017, Jorunna sp. 09 Genus: Bergh, 1876
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Jorunna_sp_09.htm