Northern Prairie Wildlife Research Center
There are more than a dozen species of freshwater mussels in North Dakota. Not all species are commercially desirable, in fact, only four or five reach marketable size.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/inverts/ndclam/pictures.htm
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Page Last Modified: Saturday, 02-Feb-2013 05:27:01 EST
Menlo Park, CA [caww54]
