Re: Bosellia mimetica? from Japan.

March 2, 2004
From: Jun Imamoto


Note added 3 March 2004: Jun Imamoto has reindentified the algae as Udotea orientalis, and suggested the algae in this photo is not the slug's food [see message #12360].

Dear Bill and Kathe,
Thank you for your comments [#11858, #12346]

I found four individuals. Here are photos of two animals, one of which has a white spot. They were found on the green algae Chlorodesmis caespitosa. I hope this information is useful.

Amami-Ooshima Islands, Kagoshima, Japan.
size approx: 6mm., Depth: 2 m. Temp: 20 C. 8 February 2004. Photos: Jun Imamoto

Best Regards,
Jun Imamoto
www.umiushi.info/

imamoto@umiushi.info

Imamoto, J., 2004 (Mar 2) Re: Bosellia mimetica? from Japan.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12349

Thanks Jun,
These animals look a bit more mature than the earlier ones,, and the colour pattern with whitish patches looks very much like the whitish patches on the alga. I suspect the white spot turns pink in older individuals.

I am curious about the algae you found these on, because the algae in this photos seems to be different from the one in your earlier message. This one seems to have a surface covered in smooth 'bubbles' while the algae in the earlier message seems to be covered in short filaments. I have attached a message [#12358] with close-ups of the other algae. I am not an expert on algae so I am not sure what Chlorodesmis caespitosa looks like. Why I am so interested is that elsewhere, Bosellia is usually associated with Halimeda.
Best wishes
Bill

Rudman, W.B., 2004 (Mar 2). Comment on Re: Bosellia mimetica? from Japan. by Jun Imamoto. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12349

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