Re: Is Ceratosoma magnifica a good species ?

June 19, 2007
From: Erwin Koehler

Concerning message #19854:

How about  Ceratosoma sinuata on Jun Imamoto's site?
Regards
Erwin

Erwin@Philippine-Sea-Slugs.com

Koehler, E., 2007 (Jun 19) Re: Is Ceratosoma magnifica a good species ?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20003

Dear Erwin,
I think that like other species of Ceratosoma, actual colours - as distinct from colour patterns - may not be as important as it is in other genera of the chromodorids. The animal in Jun Imamoto's photo has a background green colour which suggests C. sinuata, but the shape and colour of the yellow marks, blue marks, rhinophores and gills are all identical to 'typical' C. flavicostata, and I would be quite comfortable identifying it as C. flavicostata. My interpretation is that in this case the background colour is green not reddish.

Of course I could be quite wrong, but now that I have suggested a pattern, this is a good way to test it. At least for a while I think we should look at general body and colour pattern and ignore, or at least downgrade, the background colour.

Good luck,
Bill Rudman

Rudman, W.B., 2007 (Jun 19). Comment on Re: Is Ceratosoma magnifica a good species ? by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20003

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