Cerberilla annulata
(Quoy & Gaimard, 1832)

Family: Aeolidiidae


Wide Indo-West Pacific distribution.


UPPER: Adult, 62mm long. LOWER: Juvenile, 32mm long. Showing change in body proportions between juveniles and adults. Koumac Beach (=Baie de Ouanap), near Koumac, New Caledonia, 20°34'S, 164°16'E, Mixed soft and hard substrate, grassbeds, algae, October 1993. PHOTOS: Bill Rudman.

This sand dwelling aeolid has a wide tropical Indo-West Pacific distribution with published records from New Guinea (Quoy & Gaimard) and Tahiti (Bergh). I have found it in Zanzibar, Tanzania and New Caledonia. It is characterised by the relatively long cerata, white body and cerata, and yellow (upper) and black (lower) band near the ceratal tip.

• Quoy, J.R. & Gaimard, J.P. (1832). Voyages de découvertes de l`Astrolabe pendant les annees 1826-1829 sous le commandement de M.J. Dumont d`Urville. Zoologie, 2: 1-686.

Authorship details
Rudman, W.B., 1999 (November 25) Cerberilla annulata (Quoy & Gaimard, 1832). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/cerbannu

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