To those who may have opinions,

I've put pictures of a couple of Unionid shells that have puzzled me up
at http://pinicola.ca/unio/mystery_shells.pdf

I've put tentative names on them, and am interested in what others think.

thanks,

fred.
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The data for the specimens are:

Canada: Ontario: Durham County: Clarington: Bowmanville Creek, 0.3 km
NNW Highway 401 bridge. 30M/15, UTM 17TPU 862.6 632.2 43.90058N
78.68054W. 24 April 2008 TIME: 1815ca. AIR TEMP: 18, sunny, breezy.
HABITAT: clay/sand/cobble creek in brushy oldfield/treed park, below
residential terrace. OBSERVER: Frederick W. Schueler. 2008/054/ac, cf
Ligumia nasuta (Mollusca). 1 shell, drift, specimen. worn-down 46 mm
fragment from the creek. The only Unionid or shell seen.


Canada: Ontario: Stormont, Dundas & Glengarry Cos: Mountain: South
Nation R/Co Road 1, South Mountain. 31B/14, UTM 18TVE 639.7 812.9
44.98611N 75.45668W. 11 June 2009 TIME: 1852-1905. AIR TEMP: 26.
HABITAT: clear/brownwater rocky/Butomus river, brushy/oldfield banks.
OBSERVER: Frederick W. Schueler. 2009/099/kbb, Alasmidonta marginata
(Mollusca). 2 shell, specimen. 65 mm pair & beak fragment.



------------------------------------------------------------
            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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