Re: Berthella californica from Russia

January 17, 2001
From: Dave Behrens

Dear Bill:
Without the specimen in hand, I must agree with your identification that Val's photo is indeed a Berthella californica(Dall, 1900). I think it is just a matter of time before we hear about more temperate Pacific species occurring in the less studied Russian waters. Val's photo is most typical of this species.

I have attached a photo of a specimen with egg mass, taken by Steve Gardner, at La Jolla Shores, San Diego County in southern California. In the San Diego area we often find specimens of Berthella californica with a light brown notal color. The white specks and marginal edge are always consistent, however.

This is truly a valuable extension of this species geographical range.

Thanks,
Dave Behrens

Dave@seachallengers.com

Behrens, D., 2001 (Jan 17) Re: Berthella californica from Russia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3536

Dear Dave,
Thanks for the confirmation. What about the size of the white spots? Are they variable? They seem a lot larger and more sparsely placed in the Russian animal.
Best wishes,
Bill Rudman.

Rudman, W.B., 2001 (Jan 17). Comment on Re: Berthella californica from Russia by Dave Behrens. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3536

Factsheet

Berthella californica

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