John Cramer wrote:
> To see pictures of the shell I've been trying to ID (as possibly U. imbecillis)go to http://www.oglethorpe.edu/faculty/~j_cramer/ and click on the title "shells."  Valves are the same size although they may not appear so in all shots because of camera angle. You can see how big it is from the 6" ruler.  Reactions solicited.
>

* in eastern Ontario those would go one the Pyganodon pile, rather than
the Utterbackia pile.

fred.
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             Bishops Mills Natural History Centre
           Frederick W. Schueler & Aleta Karstad
        RR#2 Bishops Mills, Ontario, Canada K0G 1T0
     on the Smiths Falls Limestone Plain 44* 52'N 75* 42'W
       (613)258-3107 <bckcdb at istar.ca> http://pinicola.ca
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