Chromodoris quadricolor feeding?

October 4, 2007
From: Eddy Mannak

Concerning message #20343:

Hello Bill,

You wrote in this message that you where interested in photos of Chromodoris quadricolor on possible food sponges. During my last holiday in Egypt in August 2007 I did have a special look for you.

And I found one Chromodoris quadricolor eating from a black/purple sponge. So I hope it would be of value to you.

Locality: Hurghada, 11 metres, Egypt, Red Sea , 28 august 2007. Length: 35-40 mm. Photographer: Eddy Mannak.

Greetings,
Eddy Mannak

eddy.mannak@wanadoo.nl

Mannak, E., 2007 (Oct 4) Chromodoris quadricolor feeding?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20859

Dear Eddy,

Thanks for thinking of me. Your find is a bit of a puzzle however. Although the purple sponge certainly looks as though it belongs to a sponge family eaten by species of Chromodoris, C. quadricolor is an exception that doesn't seem to eat sponges of this family. In fact the orange-red sponge on the left of your upper photo looks to be the exact sponge that C. quadricolor normally eats. Did you see signs of it actually feeding on the purple sponge?

It will certainly be interesting to see if we get any more observations of it associating with this sponge.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Oct 4). Comment on Chromodoris quadricolor feeding? by Eddy Mannak. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20859

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