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Mississippi National River and Recreation Area
Black Sandshell
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![](https://webarchive.library.unt.edu/eot2008/20090511144007im_/http://www.nps.gov/mwr/templates/images/graphics/spacer.gif) |
(Ligumia recta) Lamarck, 1819
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K.S. Cummings, Illinois Natural History Survey |
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Black sand mussel; Long John; Honest John; Sow's ear; Lady's slipper.
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Black sandshells are common in medium to large rivers such as the Mississippi where waters flows continously through. Most often, they are embedded in gravel or firm sand.
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Can grow up to 8 inches (20.3 cm), in the above picture the male is 4.6 inches (11.7 cm) and the female is 4.8 inches (12.2cm).
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Dark green, brown or black. Some mussels may have green rays on them.
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White, pink, pinkish, or purple. Toward the end farthest from where the two halves meet (beak), there may be a combination of these colors.
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Much longer than wide and looks somewhat swollen. The end closest to the beak of both sexes are round, while their opposite end varies slightly. The end farthest to the beak of the female is rounded, while that of the male is more pointed. The elastic part of the shell the connects the two halves together at the top is straight. The bottom of the shell may be either straight or curved.
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Outer surface is smooth and shiny.
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Elongate, moderately inflated brown or black shell. Female is postbasally rounded, male is tapered. Postbasal mantle margin is broad with papillae, especially female.
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Rock Bass, Common Carp, Green Sunfish, Bluegill, Largemouth Bass, White Crappie
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Widely distributed but uncommon in much of the Midwest.
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![Headwaters of the Mississippi Headwaters of the Mississippi](https://webarchive.library.unt.edu/eot2008/20090511144007im_/http://www.nps.gov/mwr/customcf/apps/CMS_HandF/Pictures/MISS_gdyn_headwate.jpg) |
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Did You Know?
The Mississippi River is approximately three feet deep at its headwaters at Lake Itasca and has an average surface speed of 1.2 miles per hour.
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Last Updated: September 18, 2006 at 10:07 EST |