The Eastern Elliptio is a species of freshwater mussel found primarily in rivers and streams across the eastern United States. It is known for its elongated, elliptical shell, which can vary in color from yellow to dark brown. This mussel plays a crucial role in its ecosystem by filtering water and providing habitat for various aquatic organisms. These mussels are sensitive to changes in water quality and habitat destruction, making them important indicators of environmental health. Conservation efforts are essential to protect the Eastern Elliptio and its habitat, as many populations are threatened by pollution and river modifications.