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Favorinus japonicus has a translucent white body with opaque white markings on the notum. The cerata are nodular, the colour of the digestive glands depend on the colour of the eggs the animal has ingested, the digestive gland adopts the colour. The rhinophores have 2-3 bulbous swellings.
More information on Favorinus japonicus are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2016), published 22 October 2016, Favorinus japonicus Baba, 1949
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Cladobranchia/Favorinus_japonicus.htm