On Fri, Aug 1, 2008 at 5:28 PM, Harry G. Lee <[log in to unmask]> wrote:
> Dear Listers,
>
> Does anyone know of an identification guide to the freshwater
> mollusks of Oregon?
>
> Harry
>

Ethan Nedeau, Allan K. Smith, and Jen Stone. Freshater Mussels of the
Pacific Northwest. Available online at
www.fws.gov/pacific/columbiariver/musselwg.htm

Probably no North American mussel really belongs in Anodonta, and
there's some debate about whether and how to split Margaritifera.

Of course, Burch's guides cover all of North America.  However,
there's been a lot of work on the hydrobiids and other snails lately,
some unpublished or gray literature (try searching online for papers
by Frest and Johannes), some formally published but not yet in more
accessible format (Frest and Johannes are authors on a lot of those,
too, but probably searching for Hershler on the hydrobiids is most
effective).  Despite focusing sampling on described forms in Oregon,
we came up with at least three undescribed species of Juga from Oregon
in our hopefully soon to be published work.  As a rule, probably the
most important piece of information in identifying a freshwater
mollusk is "Where did you find it?"  (This makes a type locality of
California not real helpful.)

There are also older papers such as Junius Henderson and G. D. Hanna's work.


--
Dr. David Campbell
425 Scientific Collections
University of Alabama
"I think of my happy condition, surrounded by acres of clams"

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