Phyllidia exquisita from Kerama Ids

October 18, 2000
From: Atsushi Ono

Dear Bill,
Thank you for a comment on haminoeid sp. and thank you, Clay & Patty Jo.

Now I have attached an animal that is a bit similar to Phyllidia willani, but I think it is P. babai because it has yellow edge to the mantle. Is my idea correct?

This animal is about 45mm long, found at 20m depth, at Kerama Is. near Okinawa in Japan.

Atsushi Ono

Ono , A., 2000 (Oct 18) Phyllidia exquisita from Kerama Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Atsushi,
The two species you mention and Phyllidia exquisita were all named by Brunckhorst (1993)in his comprehensive revision of the family. The relationsghip between these three species and Phyllidia ocellata will take a while to sort out because we still do not know the colour variability of each species. Your animal has features of all three species but I would suspect that it is Phyllidia exquisita. Brunckhorst considers the black line betwee the rhinophores and how it divides into two both posteriorly and anteriorly, to be quite significant.

I am not totally convinced they are all good species, but on colour pattern I would feel your photo is best considered to be of P. exquisita.
Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Oct 18). Comment on Phyllidia exquisita from Kerama Ids by Atsushi Ono . [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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