Phyllidiopsis from the Philippines

December 12, 1998
From: Erwin Koehler

Dear Bill,
I'm back from 5 weeks diving at Panglao and Negros, Philippines and have a lot of shots of slugs (more than 1000). Some IDs are NO IDEA, with others I'm not very sure, most are done. The first photos show (as I guess) Phyllidiella pustulosa (Cuvier, 1804) with some unusual rhinopores. The shots were done at the dive site BBC (Bohol Beach Club),
Panglao, depth 18 m, date Oct. 29th

Erwin Koehler

Koehler, E., 1998 (Dec 12) Phyllidiopsis from the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Erwin,
Welcome to the world of the troublesome Phyllidiidae. It looks like Phyllidiella pustulosa but the rhinophores are a giveaway. In Phyllidiella they are always uniform black. According to Brunckhorst (1993) three species of Phyllidiopsis have these pink rhinophores with a black posterior stripe. One of these, Phyllidiopsis krempfi is I think your animal. I have put pictures and notes of the other two on the site for comparison. They are Phyllidiopsis fissuratus and Phyllidiopsis pipeki.
Thanks for keeping us informed of your interesting finds,
Bill Rudman.

Rudman, W.B., 1998 (Dec 12). Comment on Phyllidiopsis from the Philippines by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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