Re: Cuthona columbiana from British Columbia

May 31, 2002
From: Dave Behrens

Hi Bill,
I would suggest that Marli have someone look at the internal anatomy of this species. Cuthona columbiana has orange rhinophores and oral tentacles. Also the white stripe up each ceras is usually unbroken. Marli's animals look externally like light colored specimens of Sandra Millen's Cuthona punicea. C. punicea has a white line on the oral tentacles and white specks over the cerata.
Dave Behrens

dave@seachallengers.com

Behrens, D., 2002 (May 31) Re: Cuthona columbiana from British Columbia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7101

Thanks Dave,
From Sandra Millen's earlier comments I had assumed these animals with a broken white line were also C. columbiana. They have orange on the rhinophores which Sandra says does not occur in C. punicea, but I agree, in the end the anatomy will need to be checked. By chance I am also posting today some photos which Marli has identified as C. punicea. Would you agree with that identification?
Cheers,
Bill Rudman

Rudman, W.B., 2002 (May 31). Comment on Re: Cuthona columbiana from British Columbia by Dave Behrens. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/7101

Factsheet

Cuthona columbiana

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