Phyllaplysia from SE Sulawesi

February 19, 2000
From: Lindsay Warren

Dear Bill

I have another query about the attached which we believe to be a species of Petalifera. We found these quite commonly at night, usually when wading at low tide although also when diving at high tide in the same area. They were found on the blades of sea grass on which they are well camouflaged. They are quite flat and adhere very firmly to the sea grass.

Towards the rear of the parapodia and protected by them one can sometimes see the translucent green gills. Over the dorsum are irregular patches of white which are often raised into a hook-like projection (soft). The rhinophores are relatively small and eye spots are clearly visible in front of them. OS0752 measured 30 mm while OS0651 measured 13 mm. Once tuned into them, we found them whenever we looked for them from August through to the end of November 1999. [Tukang Besi, S.E.Sulawesi, Indonesia - Operation Wallacea]. Photos: Lindsay Warren

All the best
Lindsay Warren

Warren, L., 2000 (Feb 19) Phyllaplysia from SE Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Lindsay,
See my comments at the top of this page concerning the names Petalifera and Phyllaplysia. I am afraid I find trying to identify species too confusing to try. Which is disappointing because they are fascinating little animals.

Bill Rudman.

Rudman, W.B., 2000 (Feb 19). Comment on Phyllaplysia from SE Sulawesi by Lindsay Warren. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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