Hypselodoris apolegma feeding?

August 2, 2007
From: Ann Clear

Hi Bill,
I know how interested you are in nudibranchs feeding habits, so I thought that you may like to see these two Hypselodoris bullocki having lunch.

Locality: lembeth straits, 12mtrs, indonesia, celebes sea, 10 march 2007, coral head on muck dive. Length: 2 cms. Photographer: ann clear.

Ann Clear

ann.clear@btinternet.com

Clear, A, 2007 (Aug 2) Hypselodoris apolegma feeding?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20290

Dear Ann,
Thanks for the photo. I am surprised to see this species, which is now considered separate from H. bullocki - and known as Hypselodoris apolegma - on this red sponge. Both this species and H. bullocki have only been found feeding on a blue-purple dysideid sponge of the genus Euryspongia. That is not to say they may not eat this red sponge as well but I think we need to be cautious. I don't suppose you saw any evidence of them actually feeding on this sponge - like in Roberto Sozzani's photos in message #16276?

I assume you were diving in a group. I realise you wouldn't, but is it possible that some other members of your party could have placed these animals on the red sponge for a nice photo and left them there for you to find?

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Aug 2). Comment on Hypselodoris apolegma feeding? by Ann Clear. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20290

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