Is it really Discodoris confusa ?

October 26, 2009
From: Alain-Pierre Sittler


Dear Dr Rudman,

I found this species on a mediterranean wall, in the night. I identified it as Discodoris confusa but I have a doubt. It seems quite rare on our dive spots. Please, what do you think about ?

Locality: Pointe de la Cuisse, Rade de Villefranche-sur-Mer, 20 m, France, Mediterranean sea, 03 July 2008, Rocky wall with many Halimeda tuna. Photographer: Alain-Pierre Sittler.

Thank you very much
Alain-Pierre Sittler

APSittler@aol.com

Sittler, A.-P., 2009 (Oct 26) Is it really Discodoris confusa ?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22717

Dear Alain-Pierre,

The mantle skin certainly doesn't look like a species of Discodoris, and from your close-up photo we can see a whitish secretion exuding from one of the tubercles. This makes me wonder if it is a colour form of Geitodoris planata.

But these 'flat' dorids with brownish mottled colour patterns are very difficult to identify from photos. It needs someone with a good knowledge of their local fauna to help us out

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Oct 26). Comment on Is it really Discodoris confusa ? by Alain-Pierre Sittler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22717

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Geitodoris planata

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