Creeper Bivalve Shell
Half of the shell of a creeper, a species of freshwater muscle. They are relatively common throughout the river systems on which I spend a lot of time in the warmer months. This shell was found on the Wisconsin River in Stevens Point, Wisconsin.
"Strophitus undulatus" is a species of mussel in the Unionidae, the river mussels. It is native to eastern Canada and the eastern United States. Its common names include creeper, squawfoot, sloughfoot, and strange floater.
Similar species: Freshwater Mussels
By travismorhardt
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Uploaded Jan 7, 2014. Captured Sep 24, 2011 18:36 in 3243 Whiting Road, Stevens Point, WI 54481, USA.