Pectenodoris trilineata from Philippines

January 22, 2004
From: Peter Zimmermann

Dear Bill,
I took this picture in June 2003 in about 20m depth at Kirby's Rock in Anilao, Philippines. Is this nudibranch Durvilledoris similaris?

Thanks for your answer.
Peter Zimmermann
Liestal, Switzerland

Zimmermann, P., 2004 (Jan 22) Pectenodoris trilineata from Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Peter,
This nice photo sjows its sponge food very clearly. It certainly looks quite like Durvilledoris similaris, but as its name implies, there are a number of very 'similar' looking species. This is Pectenodoris trilineata. See the Noumea purpurea Colour Group Page to compare this species with others of similar colour.
Best wishes
Bill Rudman

Rudman, W.B., 2004 (Jan 22). Comment on Pectenodoris trilineata from Philippines by Peter Zimmermann. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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