Cuthona diversicolor
Baba, 1975

Family: Tergipedidae


Known from Hong Kong and Japan.


Hong Kong Workshop, April 1983. AM C139106
UPPER: head and anterior end of an animal with little blue in its colour pattern. Photo: Bernard Picton. LOWER: Head and full photo of another specimen. Photo: Brian Darvell.

Tergipedid with a characteristic colour pattern. The body is translucent colourless with a scaterring of irregularly shapes bright yellow and milky blue patches. The head is translucent orange and the oral tntacles and smooth rhinophores are a very pale translucent orange, which becomes more intense towards the tip. There are a few scattered yellow patches on both rhinophores and oral tentacles. The cerata are translucent clear with small scattered yellow specks. Towards the tip there is a thin orange band, and below it, a broader milky blue band. The blue band is not always present. The digetsive gland is black, giving the cerata a granular black appearance. It grows to 15-20mm in length.

• Baba,K (1975) Description of Trinchesia diversicolor spec. nov. from the Japan Sea coast of Middle Japan (Nudibranchia: Eolidoidea (Cuthonidae). The Veliger, 17(3): 251-254.

Authorship details
Rudman, W.B., 2001 (August 9) Cuthona diversicolor Baba, 1975. [In] Sea Slug Forum. Australian Museum, Sydney. Available from

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