Re: Glossodoris rufomarginata feeding

November 18, 2008
From: Marli Wakeing

Concerning message #22048:

I recently encountered this species for the first time at Lembeh Straight. It was present on a sponge not disimilar in colouration to itself. Perhaps this will add to the information already gathered.

Locality: Lembeh Straight, Sulawesi, 35 feet, Indonesia, Pacific, 30 July 2008, Sand bottom. Length: 4 cm. Photographer: Marli Wakeling.

Cheers,
Marli Wakeling

scubamarli@gmail.com

Wakeling, M., 2008 (Nov 18) Re: Glossodoris rufomarginata feeding . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22056

Thanks Marli,
It is certainly not the blackish Semitaspongia which Glossodoris rufomarginata has previously been found associated with. I guess the first step is to see if anyone else has found it with this sponge, as it could of course just be crawling over it, rather than eating it.

There are records on the Forum of Glossodoris sp. 14 associating with a couple of similar looking thorectid sponges, Collospongia sp, Candidaspongia sp. [see #14261, #9600], but we would obviously need to confirm the identity of the sponge and find some evidence that it actually feeds on it. It may turn out to be a dead end, but your photo certainly suggests we should consider more than one species.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Nov 18). Comment on Re: Glossodoris rufomarginata feeding by Marli Wakeing. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22056

Factsheet

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