Melibe engeli from Japan

March 5, 2000
From: Atsushi Ono

Dear Bill,
Thank you for about Halgerda sp.4.

I have the photo a juvenile of Melibe species. I have thought this was M. papillosa, but this is similar to Lindsay's animal. Could you check this animal?

Data: Kerama Is. near Okinawa, 12mm long,
Crawling on algae, 3m depth, in May, 1999.

Atsushi Ono

Ono, A., 2000 (Mar 5) Melibe engeli from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Atsushi,
I am pretty sure this is Melibe engeli. If you look at the shape of the rhinophore stalk, with its papillate wing, it si identical to your animal. The tip of the cerata have three papillae but they look more flattened in your animal. This seems to be caused by the outer papillae lying out sideways.

Looking at your animal I think, as Terry Gosliner suggested, that Lindsay Warren's animal is M. engeli though it would be useful to know what the rhinophores looked like.
Best wishes.
Bill Rudman.

Rudman, W.B., 2000 (Mar 5). Comment on Melibe engeli from Japan by Atsushi Ono. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Melibe engeli

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