Two juveniles of 'Miamira-group' from Okinawa

February 2, 2000
From: Kazuko Matsuda


Dear Bill

Thank you for your reply to my last message.

Two juveniles of 'Miamira-group' were found at Sunabe in Okinawa, Japan. There are some rocks in sand, 10m away from reef edge, they were on rocks there. One of them is a color variation of 'Ceratosoma sinuata', but I don't know the other. Could you identify it for me?

Data:
UPPER PHOTO: ('sinuata') 21 December 1999, depth: 20m, length: 9mm
LOWER PHOTOS: (unknown) 25 December 1999, depth: 20m, length: 6mm(two images)

Green type 'sinuata'(22mm) and Ceratosoma miamirana (30mm) were also found at the same point(within a 2-meter radius).

Kazuko

matsu@ii-okinawa.ne.jp

Matsuda, K., 2000 (Feb 2) Two juveniles of 'Miamira-group' from Okinawa. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1826

Note added 30 April 2007: Until now on the Forum C. sinuata and C. flavicostata have been considered forms of one species. See message #19854 where they and C. magnifica are considered separate species.

Dear Kazuko,
These are beautiful animals. I agree that the top one looks like a purple colour form of the green 'sinuata' but the lower photos look a bit different, though they do look a bit like 'magnifica' in shape.

At this stage I guess its a question of building up more information. It would be interesting to see if you find large specimens of these purple colour forms or whether they change into less colourful adults.

I would be interested in photos of the larger species you also saw. They would be an interesting comparison.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Feb 2). Comment on Two juveniles of 'Miamira-group' from Okinawa by Kazuko Matsuda. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1826

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