March 2, 2009
From: Dominique Horst
Concerning message #13989:
I suppose this is a colour variation of Discodoris rosi without the white rings around the darker patches. The base of the rhinophores are quite transparent.
The egg-mass was on the sponge where they usually feed, with no other slug, so I've supposed that it is their egg ribbon.
Locality: Cagnes, 23 m, France, Mediterranean sea, 28 February 2009. Length: 30 mm. Photographer: Dominique Horst.
Horst, D., 2009 (Mar 2) Re: Discodoris rosi from the french Mediterranean. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22302
This animal certainly looks as though it could be Discodoris rosi. I have included a close-up which shows the dark patches. I agree that is missing is the white ring that normally outlines these dark patches.
Interestingly your animal seems to be the same as the one in Sandrine Bielecki's recent message [#22174] which I tentatively identifed as Carminodoris boucheti. Both here animal and yours seem to be on the same sponge, which in both cases seems to have tall cylindrical outgrowths. Perhaps this sponge is an encrusting sponge and the tall outgrowths are just tubes or branches of another animal or plant that the sponge has overgrown? If so, it could possibly be a Microciona, like the one identified by Bernard Picton in Mark Warren's message [#21943 ]. I would be grateful for any feedback from local experts.
Re: First record of Discodoris rosi from the UK
From: David Kipling, October 1, 2009
Re: Discodoris rosi from French Mediterranean
From: M. Poddubetskaia Ossokine, April 2, 2009
Re: Discodoris rosi laying egg mass ribbon
From: Dominique Horst, March 10, 2009
Baptodoris cinnabarina ? from French Mediterranean
From: Sandrine Bielecki, February 13, 2009
First record of Discodoris rosi from the UK
From: Mark Warren, October 15, 2008
Discodoris rosi from Slovenia
From: Tom Turk, June 13, 2005
Re: Discodoris rosi from nthn Spain
From: Alma Sanchez, March 1, 2004
Discodoris rosi from nthn Spain
From: Ricardo Roberto Fernández, February 27, 2004
Discodoris rosi from French Brittany
From: Marina Poddubetskaia, September 27, 2002