Cuthona gymnota
(Couthouy, 1838)

Order: NUDIBRANCHIA
Suborder: AEOLIDINA
Family: Tergipedidae

DISTRIBUTION

North Atlantic from Mediterranean to Norway, and Canadian Arctic to New Jersey, USA.

PHOTO

The Netherlands. Photos: Peter van Bragt.

Feeds mainly on hydroids of the genus Tubularia and passes through a number of generations each year. Bleakney (1996) reports that it changes from one seasonal species of Tubularia to another in Atlantic Canada as the year progresses. Grows to about 20mm in length but usually smaller.

References:
• Bleakney, S. (1996) Sea Slugs of Atlantic Canada and the Gulf of Maine.
• Thompson, T.E. & Brown, G.H. (1984) Biology of Opisthobranch Molluscs, Vol 2. Ray Society: London.

Authorship details
Rudman, W.B., 2000 (September 17) Cuthona gymnota (Couthouy, 1838). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/cuthgymn

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