Re: Is this Cuthona puellula ?
April 19, 2008
From: Ayumi Murakami
Concerning message #7493:
Dear Bill
I had found five individuals that had the same peculiarity, but I don't know what they are. At first that I had found it, I thought this was Cuthona puellula, however there are not any red or orange spots on the cerata.
What do you think?
I'm sending you three photos of two individuals.
Locality: Futou Beach,West IZU pen, 3m, Shizuoka prefecture,Japan, Pacific Ocean, 28 October 2006,30 September 2007, Rock wall. Lengths: Upper right, lower left - 5 mm; Lower right - 2.5 mm. Photographer: Ayumi Murakami.
Ayumi Murakami
umiushi2@masea.info
Dear Ayumi,
Although your animals don't have the red or orange spot on each ceras I would say it is the same species. Perhaps your animals are still too small to have developed their full colour pattern or perhaps they are a variant. Certainly the rest of the colour pattern, with the red lines on the rhinophores and the white lines on the cerata fit Cuthona puellula. Although it was named many years ago, it takes a long time for us to build up the full picture of each species so its possible that forms without the red-orange spot are quite normal for the species.
Best wishes,
Bill Rudman
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