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Mississippi National River and Recreation Area
Pink Papershell
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(Potamilus ohiensis) Rafinesque, 1820
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U.S. Army Corps of Engineers |
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Papershell; Fragile heelsplitter
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Medium to large rivers in silt, mud, or sand.
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Up to 7 inches (17.8 cm).
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Varies. It may be pink, yellow, green, brown, tan, olive, or gray.
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The most obvious feature of the shell outline are two flattened extensions that resemble wings. The wings are found along the point where the two shell halves join, on either side of the beak. The smaller of the two wings may be absent in adults (it often breaks or wears off). The rest of the shell outline (without the wings) resembles the shape of a stretched egg.
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Shell looks flattened. The outer shell surface is smooth and shiny.
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Shell pink, yellow, green, brown or gray. Concentric bands of several of these colors are common. Shell is usually smooth and shiny. Bialate(two wing extensions of shell). Sexes alike. Lengthy pseudosiphons which distinguished this species from all other Upper Mississippi River mussels.
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White crappie, freshwater drum.
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Widespread and locally common.
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Did You Know?
At the headwaters of the Mississippi, the average surface speed of the water is 1.2 miles per hour. People typically walk 3 miles per hour.
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Last Updated: September 20, 2006 at 13:19 EST |