Chromodoris hamiltoni feeding on black sponge? [2]

September 10, 2008
From: Colin Ogden


Hi Bill
Here is the fourth set of photos, also of Chromodoris hamiltoni showing extreme interest in black sponge.

Locality: Sodwana Bay, 15 metres, South Africa, Indian, 2008, reef. Length: 25 to 30 mm. Photographer: Colin Ogden.

Regards
Colin

scubaco@iafrica.com

Ogden C. M., 2008 (Sep 10) Chromodoris hamiltoni feeding on black sponge? [2]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21878

Dear Colin,

I am pretty sure this is a thorectid sponge of the genus Semitaspongia. This is a valuable contribution as it helps to confirm that C. hamiltoni  feeds on two unrelated groups of sponges apparently attracted to particular anti-feedant molecules found in these sponges.

[For my general comments on Colin's series of sponge-feeding observations see the first message #21875].

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Sep 10). Comment on Chromodoris hamiltoni feeding on black sponge? [2] by Colin Ogden. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21878

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