Ceratosoma brevicaudatum, the short-tailed ceratosoma, is a species of colourful dorid nudibranch, a sea slug, a shell-less marine gastropod mollusk in the family Chromodorididae.
Distribution Houtman Abrolhos, Western Australia, across South Australia and Victoria to Cape Byron, New South Wales, and around Tasmania.
Description This firm-bodied species grows to a maximum recorded length of 15 centimetres. Within South Australian waters, dark coloured individuals are more common in the west and paler colours more so in the east. An orange form is considered typical in SA.Rudman, W.B., 1998 (October 14) Ceratosoma brevicaudatum Abraham, 1876. [In] Sea Slug Forum. Australian Museum, Sydney.
Ecology The species feeds on Euryspongia spp. sponges.
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