Tropical sea slug from Huahine

February 16, 2002
From: Taiana Darius

This week-end in Huahine lagoon (French Polynesia), I have seen a black sea slug with many " wings" on the back decorated with a blue line alongside and orange spots. This sea slug was tiny, about 1 cm /0.39 inch. Unfortunately, I did not have a camera with me. Is anybody can give me information about this beautiful sea slug despite my poor information request.
Many thanks to all.

Darius, T., 2002 (Feb 16) Tropical sea slug from Huahine. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Taiana,
I am afraid the information you have given us is a little lacking in detail but one possibility is Cyerce nigricans. Have a look at the photos on that page and see if it fits your animal. In small animals like yours the white edge could appear blue. Of course I could be quite wrong. There's no point in giving you any information about your slug until we know what it is so let me know how close I am to identifying your slugs.
Best wishes.
Bill Rudman

Rudman, W.B., 2002 (Feb 16). Comment on Tropical sea slug from Huahine by Taiana Darius. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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