Re: Chromodoris quadricolor and the cowrie

December 4, 2007
From: Vittorio Bruzzone

Concerning message #21197:

Dear Bill,
Thanks a lot for your reply.
Here are some photos of groups of Chromodoris quadricolor from the same dive on the same sponge

Locality: Jeddah, 10 meters, Saudi Arabia, Red Sea, 19 November 2007. Length: 30 mm. Photographer: Vittorio Bruzzone.

Vittorio Bruzzone

 

vittorio@bruzzone.it

Bruzzone, V., 2007 (Dec 4) Re: Chromodoris quadricolor and the cowrie. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21254

Dear Vito,

Thanks for these extra photos of C. quadricolor on this dark grey sponge, which is almost certainly a species of Semitaspongia. The only way we can be 100% sure a nudibranch is eating a particular food is to find it actually eating a hole in the food. This is not always possible, but when I see a large number of animals together like this, I can be pretty sure that they are attracted to the sponge because it is their food.

This is another valuable confirmation of earlier observations.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Dec 4). Comment on Re: Chromodoris quadricolor and the cowrie by Vittorio Bruzzone. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21254

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