• Mississippi National River and Recreation Area

    Mississippi

    National River & Recreation Area Minnesota

Creek Heelsplitter

(Lasmigona compressa) Lea, 1829
A Creek Geelsplitter
U.S. Army Corps of Engineers
Other Common Names:
None.
Habitat:
Often found in areas that mark the beginning of a small or medium river where there are fine gravel or sand. Rarely will it be found in largerrivers.
Length:
Can be up to 4 inches (10.2 cm).
Outer Shell Color:
Yellow, green or brown, often with green rays.
Inner Shell Color:
White to salmon-colored.
Shell Thickness:
Thin.
Shell Outline:
Longer than it is wide and looks somewhat rectangular (imagine a rectangle blown up, like a balloon). The end closest to where the two halves meet is rounded from top to bottom. The opposite end is bluntly pointed and somewhat square towards the top. The elastic part of the shell that connects the two halves together at the top is straight. The bottom of the shell is rounded, but sometimes may be straight.
Shell Surface:
Smooth, and somewhat flat toward the left end of the shell.
Scientific Description:
Yellow, green or brown shell often with green rays. Shell elongated, subrectangular and compressed.
Similar Looking Mussels:
Host Fish:
Slimy Sculpin, Spotfin Shiner, Guppy, Yellow Perch, Black Crappie
Distribution:
Widespread, uncommon.
Minnesota State Listing:
Special concern.
Federal Listing:
None.

Did You Know?

Mussels, One being in a person's hand

Certain freshwater mussels can live to more than 100 years in the right conditions. This lifespan is one of the longest for any creature on earth.