December 11, 2008
From: Gary Cobb
Concerning message #21282:
Hi Bill and everyone!
During today's dive we found a Glossodoris vespa well and truly feeding. You can see the buccal mass and the brown sponge. I moved the animal so you could see the feeding scar.
Locality: Old Woman Island, Mooloolaba, Sunshine Coast, 12 m, Queensland, Australia, Pacific Ocean, 30 November 2008, Subtidal. Length: 70mm. Photographer: Gary Cobb.
Cobb, G.C., 2008 (Dec 11) Glossodoris vespa feeding. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22089
Thanks for this excellent find. With Dave Mullins' photos [message #22094] which I am also posting today, I should be able to get this sponge identified. Interestingly it looks very similar to the sponge in Dave's earlier message showing G. rubroannulata feeding [message #20602]. I have almost got enough new sponge records now to arrange a session with Prof Bergquist to check their identities. From the available information, species of Glossodoris feed exclusively on thorectid sponges, but as we all know, these slugs don't seem to keep up with the scientific literature. To my untutored eye these sponges look more like dysideids, but I need expert advice. Interestingly both G. rubroannulata and G. vespa belong to a group of species which don't fit well in the genus Glossodoris, having a Chromodoris-like wide radular ribbon and body shape. So if the food does turn out to be non-thorectid it may be more evidence to show that the genus Glossodoris needs splitting up. With your earlier posts, you and Dave have given us much valuable information on the biology of this species.
More feeding pics of Glossodoris vespa
From: David Mullins, December 11, 2008
Glossodoris vespa hatching today
From: Gary Cobb, February 8, 2008
Glossodoris vespa eggs - progress report
From: Gary Cobb, December 11, 2007
Glossodoris vespa eggs at 10 days old
From: Gary Cobb, November 21, 2007
Re: Egg mass of Glossodoris vespa
From: Gary Cobb, November 20, 2007
Egg mass of Glossodoris vespa
From: Gary Cobb, November 10, 2007
Re: Glossodoris vespa endemic to sthn Queensland
From: David Mullins, October 31, 2007
Glossodoris vespa endemic to southern Queensland, Austr
From: Gary Cobb, July 4, 2007
Glossodoris from Mooloolaba
From: Wayne Ellis, May 26, 1998