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there are variants with a yellow body, with yellow rhinophores and gills, and an orange-red submarginal band on the mantle and
variants with a white body, with translucent white rhinophores and gills, in some specimens the gills are red tipped and the rhinophores have a reddish subapical region and an opaque white apex
the white variants can have:
a complete white colour without any marginal or submarginal band
a yellow marginal band and an orange-red submarginal band
or a red marginal band
In some specimens are marginal and/or submarginal bands on the foot, some specimens have a red line on the crest at the middle of the foot.
Let me quote the Sea-Slug Forum: "These all appear to be colour varieties of the one species."
Hallas & Gosliner (2015) moved the genus Diaphorodoris Iredale & O'Donoghue, 1923 from the family
Onchidorididae J.E. Gray, 1827 to the family Calycidorididae Roginskaya, 1972.
Hallas J.M. & Gosliner T.M. (2015). Family matters: The first molecular phylogeny of the Onchidorididae Gray, 1827 (Mollusca, Gastropoda, Nudibranchia). Molecular Phylogenetics and Evolution. 88: 16 - 27, available online at http://dx.doi.org/10.1016/j.ympev.2015.03.015
More information on Diaphorodoris mitsuii are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 19 March 2017, Diaphorodoris mitsuii (Baba, 1938)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Diaphorodoris_mitsuii.htm