Glossodoris sibogae? from Mauritius

November 24, 2005
From: Mathieu Bayon

I would like to confirm an identification, is that Glossodoris atromarginata in the picture ?

Locality:  Mauritius, Indian ocean. reef. Depth: 18 meters. Length: 50 mm, 14 July 2005. Photographer: Mathieu Bayon

Thank you

Bayon, M., 2005 (Nov 24) Glossodoris sibogae? from Mauritius. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Mathieu,
There are a number of species which are similar in shape and colour to G. atromarginata including the recently described G. tibboeli. Unfortunately some can only be identified at present from their internal anatomy, in particular the size and shape of their radular teeth. This come closest to G. sibogae, a species which until now has not been recorded from the Indian Ocean. So I will tentatively indetfy it as that species, but I can;t be 100% sure without some information on its anatomy.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Nov 24). Comment on Glossodoris sibogae? from Mauritius by Mathieu Bayon. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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