Notobryon wardi? from west Mexico

June 29, 2002
From: Alicia Hermosillo

Dear Dr. Rudman,

I found another specimen of the same animal you identified as possibly being Notobryon wardi. I think these pictures might be better. Any thoughts??

Picture data: 22 feet deep, 17mm long, Faro Bucerias, Michoacan, Pacific Coast of Mexico.

Alicia Hermosillo

Hermosillo, A., 2002 (Jun 29) Notobryon wardi? from west Mexico. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Ali,
Yes this seems to be Notobryon. In this genus there are a few large finely branching gills, while in Scyllaea the gills are much shorter and more numerous, I don't think we know enough about the genus to say with any certainty whether there is one widepread species or a number of different species.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jun 29). Comment on Notobryon wardi? from west Mexico by Alicia Hermosillo. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Notobryon wardi

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