Chromodoris tinctoria from Japan

August 9, 2001
From: Nishina Masayoshi

Dear Dr.Rudman,
Chromodoris tinctoria is very much common in Japan and often we are able to see that the body color changes from juvenile to adult.
I think these two are Chromodoris tinctoria although they do not have the usual colour pattern we find in Japan. I think they are already adult because of their size.
Date: 21 July, 2001
Place: Echizen Beach (West coast of Japan)
Depth: 7m
Size: 40-50mm

Best Regards,
Nishina Masayoshi

nishina@hpe15.wips.co.jp

Nishina, M., 2001 (Aug 9) Chromodoris tinctoria from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4942

Dear Nishina,
I would agree they are a colour form of C. tinctoria which is appears to be very variable in colour. Compared with your earlier photo, these animals appear to be lacking much of the red pigment. I am interested in your comment that they appear to change colour as they grow.

Except for a very few studies, we know almost nothing about pigment in nudibranchs, whether they make it themselves or incorporate it from their food, so hopefully, examples like this might excite the interest of some chemist or graduate student looking for an ineteresting project.
Best wishes,
Bill Rudman.

Rudman, W.B., 2001 (Aug 9). Comment on Chromodoris tinctoria from Japan by Nishina Masayoshi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4942

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