Phyllodesmium from North Sulawesi

February 17, 2007
From: Indra Swari

Hi Bill,
Got this slug shot on New Year in North Sulawesi. Initially I thought it is a Phyllodesmium briareum however a friend says that it has a different characteristics and suspected it is a new species. Can you help me ID this?

Locality: Popo, Manado, 10 meters, Indonesia, Sulawesi Sea, 1 January 2007, Rubbles. Length: 2-3 cm. Photographer: Indra Swari.

Thanks a lot.
Indra Swari

Wonowidjojo, I.S., 2007 (Feb 17) Phyllodesmium from North Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Indra,
I am posting two or three other messages about Phyllodesmium kabiranum today, and although your animal doesn't look very much like them, it is the same species. In fact your animal is almost identical to the colour photograph published by Baba when he described this species.

Have a look at Todd Garthwaite's earlier message [#6510] which shows specimens halfway between your colour form and the more common colour form. In Todd's animals the white on the cerata is restricted to a large subapical band while in yours the white occurs in longitudinal streaks all over the cerata.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Feb 17). Comment on Phyllodesmium from North Sulawesi by Indra Swari. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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