Hypselodoris kanga feeding in the Philippines

August 7, 2007
From: Mike Krampf

Thought I share this series of photos which I assume shows this Hypselodoris kanga extending its mouth.

Locality: Puerto Galera, 40 ft, Mindoro Island, Phillipines, Batangas Sea, 22 February 2007, Fringing reef. Length: 3 cm. Photographer: Mike Krampf.

Cheers,
Mike

mtkrampf@yahoo.com

Krampf, M., 2007 (Aug 7) Hypselodoris kanga feeding in the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20398

Dear Mike,
Thanks for these photos. Yes its is H. kanga feeding on its favourite species of Dysidea. To get its anatomy in perspective, the light blue tube which is extended is what we call the oral tube and when it is not being used in feeding it sits inside the head, a bit like what happens to the fingers of a glove when you take them off. The actual mouth is at the tip of the extended oral tube and at its opening are the jaws and radular teeth which bite off pieces of sponge.

The closeup photo of the sponge shows the radiating pattern of fibres which form the skeleton of these dictyoceratid sponges.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Aug 7). Comment on Hypselodoris kanga feeding in the Philippines by Mike Krampf. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20398

Factsheet

Hypselodoris kanga

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