Aeolidiella alba from Florida, USA

March 8, 2007
From: Linda Ianniello

Dr. Bill,
I found this tiny slug yesterday. What attracted me was the unusual jerky movement of the rhinophores described by Alicia Hermosillo in her message [#6542 ]. It was so small I never would have realized it was a sea slug otherwise.

Dr. Angel Valdes made the identification.

Locality: Deerfield Beach, 9 feet, FL, USA, Atlantic, 03 March 2007, Ocean beach, sandy rubble. Length: less than 1/2 inch. Photographer: Linda Ianniello.

Linda Ianniello.

lindai1@bellsouth.net

Ianniello, L.M., 2007 (Mar 8) Aeolidiella alba from Florida, USA. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19598

Dear Linda,
This is a very interesting find. As far as I know this is the first record of this species from the Caribbean, and for that matter, anywhere in the Atlantic. It joins a growing list of species now known from around the tropical waters of the world. I guess with such a small species like this we will never know whether the lack of earlier records of this species in the Caribbean is a result of it being a recent arrival, or because it has been overlooked by previous biologists. Ali Hermosillo's messages from Mexico, are also the first records of this species from the East Pacific.

It is also nice to know of someone else who has seen the strange way this species waves its cerata in rhythm. As I discuss in Ali's message, andother species which does something similar is Limenandra nodosa

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Mar 8). Comment on Aeolidiella alba from Florida, USA by Linda Ianniello. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19598

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Aeolidiella alba

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