Ceratosoma bicolor is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.MolluscaBase (2018). Ceratosoma bicolor Baba, 1949. Accessed on 2019-01-30. It is possible that this species is a colour variation of Ceratosoma trilobatumRudman W.B. (1988). The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: the genus Ceratosoma J.E. Gray. Zoological Journal of the Linnean Society 93 (1): 133-185, page 137
Distribution This species was described from Japan.Rudman, W.B., 2001 (August 20) Ceratosoma bicolor Baba, 1949. [In] Sea Slug Forum. Australian Museum, Sydney.
Description Anatomically indistinguishable from Ceratosoma trilobatum but with a distinctive colour pattern.Debelius, H. & Kuiter, R.H. (2007) Nudibranchs of the world. ConchBooks, Frankfurt, 360 pp. page 99Kimoto, N., 2019. Ceratosoma bicolor Seaslug World, accessed, 2019-01-30.
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