Re: Eubranchus misakiensis from Hong Kong

March 16, 2001
From: Erwin Koehler

Dear Bill
at http://www.biology.ucsc.edu/classes/bio161l/NUDI/emisakie.html is a photo of it from California, this increases its distribution a little bit ...
Erwin

Erwin@medslugs.de

Koehler, E., 2001 (Mar 16) Re: Eubranchus misakiensis from Hong Kong. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3962

Thanks Erwin,
Yes this is the photo that is in Dave Behren's book. He reported it from the San Francisco region, California in 1971. There is a difference between the natural distribution, or geographic range of a species, and records which appear to be the result of human activity. I suspect its presence in San Francisco is the result of human activity. So as not to confuse 'natural' and 'unnatural' distributions, I think it is probably best to use 'distribution' only when we are talking about a natural distribution. However there is no way to standardise such usage of words so we just have to be aware that these days, species can turn up in strange places.

Reference: Behrens, D.W. (1971) Eubranchus misakiensis Baba, 1960 (Nudibranchia: Eolidacea)) in San Francisco Bay. The Veliger, 20(1): 214-215.

Best wishes,
Bill Rudman

Rudman, W.B., 2001 (Mar 16). Comment on Re: Eubranchus misakiensis from Hong Kong by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3962

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