Ceratosoma bicolorCeratosoma bicolor is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae. It is possible that this species is a colour variation of ''Ceratosoma trilobatum''DistributionThis species was described from Japan.DescriptionAnatomically indistinguishable from Ceratosoma trilobatum but with a distinctive colour pattern.