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Very similar is Caloria sp. 01 which differs by an opaque white median line on the head, running from the anterior end to just behind the rhinophores.
How to cite:
Köhler, E. (2016), published 7 August 2016, Caloria sp. 02 Genus: Trinchese, 1888
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Dexiarchia/Caloria_sp_02.htm