Re: Favorinus mirabilis? from Japan.

January 10, 2004
From: Jun Imamoto

Dear Bill,
Thank you for your comment on my photo. It will be interesting to find out if the rhinophore shape does change as the animal grows. It does seem to be a big change. If I am lucky enough to see the shape chnage as the animals grows I will let you know.
Best Regards,
Jun Imamoto
http://www.umiushi.info/

imamoto@umiushi.info

Imamoto, J., 2004 (Jan 10) Re: Favorinus mirabilis? from Japan.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11864

Thanks Jun,
I know it seems a major change in rhinophore shape but in juvenile aeolids the rhinophores always start out as a simple smooth rod. Only as they grow to the rhinophore begin to elaborate and grow lamellae, or papillae, or swelling. I could be quite wrong in this case but I suspect the only way we will find out is if we can get information on whether it changes shape as it grows. Unfotunately the radula does not seem to be a good character to use in this genus, in some species it seems that the denticles can be present or absent, and in sometimes different species can have almost identically shaped radular teeth
Best wishes
Bill Rudman

Rudman, W.B., 2004 (Jan 10). Comment on Re: Favorinus mirabilis? from Japan. by Jun Imamoto. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11864

Factsheet

Favorinus pacificus

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