Re: Thuridilla from Hachijo Island, Japan
May 18, 2002
From: Shouichi Kato
Dear Bill,
Thank you for your reply about my Thuridilla.
I'm very interested in it and I tried to find the animal intermediate in colour between that light colored animal (A) and 'typical' T. livida (B). Unfortunately I haven't found it yet, but type B can be seen commonly during begining of Spring and Summer at shallow reef. I attached the picture of type B, usually very small, max 15mm in size. But type A was quite larger than type B, around 25mm in size.
And more, it can't be seen clearly in my picture, type A doesn't have orange line but their background is wholly orange.
I wonder if type A and type B are different species.
Thanks and best regards,
S. Kato
regulus@edit.ne.jp
Kato, S., 2002 (May 18) Re: Thuridilla from Hachijo Island, Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6958Dear Shouichi,
Thanks for these photos of typical Thuridilla livida. I am sure you are right in thinking that your light coloured animal is a different species. What I was suggesting is that it is always worth having a look to see how much colour variation you can find. Sometimes we do find a species that is so variable in colour that we can be mistaken into thinking that different variants are different species.
Best wishes,
Bill Rudman
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