Juvenile Sea Hare

May 14, 2001
From: A. Fahrner & M. Schrödl

Hi Bill,

On our last collecting trip to Elba, Italy, we found an oxynoid specimen (2.5 mm) somewhat different from Oxynoe olivacea in color and in having broad and flat tentacles. Any idea what it is?
All the best from Munich,
Alexander Fahrner & Michael Schrödl

schroedl@zi.biologie.uni-muenchen.de

Fahrner, A. & Schrödl, M, 2001 (May 14) Juvenile Sea Hare. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4322

Dear Alexander & Michael,
I am pretty sure this is a baby Sea Hare. At this small size their rhinophores are just beginning to appear as small bumps behind the eyes. If this was in the Indo-West Pacific I would also guess that this was Aplysia parvula both from its colour and from the brown prominent shell. This species also has a very large mantle foramen, usually bordered with black spots or a line. For those of you unfamiliar with the term 'foramen' it is a pore or larger hole in the mantle covering the shell. In some species it is an inconspicuous pore while in others, like A. parvula, it is often so large that the shell is only covered around the edge. I understand there have been reliable records of A. parvula from the Mediterranean.

Of course I could be quite wrong on any of these guesses so if anyone has another opinion please let us know.
Bill Rudman

Rudman, W.B., 2001 (May 14). Comment on Juvenile Sea Hare by A. Fahrner & M. Schrödl. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4322

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Aplysia parvula

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