Re: Hypselodoris bennetti & Ceratosoma amoena

April 11, 2007
From: Lynda Clarke


Concerning message #19437:

Dear Bill,

Sorry for the misunderstanding; Both species, Hypselodoris bennetti and Ceratosoma amoena are common at Julian Rocks, but only Hypselodoris bennetti shows a marked affinity for the grey sponges. Ceratosoma amoena is more usually found in the less exposed habitat shown in this photo.

Upper photo: Julian Rocks, nthn New South Wales, Nov 2005
 Photographer Andrew Green.
Middle photo: Julian Rocks, nthn New South Wales, Nov 2006.  Photographer Lynda Clarke.
Lower photo: Julian Rocks, nthn New South Wales, Nov 2006. Photographer John Natoli.

Lynda Clarke

polymath@bigpond.com

Clarke, L., 2007 (Apr 11) Re: Hypselodoris bennetti & Ceratosoma amoena. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19811

Dear Lynda,
Thanks very much for the clarification. The sponge in these three photos is almost certainly a thorectid sponge, probably a species of Semitaspongia, which is what we have seen it feeding on before.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Apr 11). Comment on Re: Hypselodoris bennetti & Ceratosoma amoena by Lynda Clarke. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19811

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