Synonyms: Lampsilis anodontoides

Distribution: Distributed across the Mississippi River drainage as far north as eastern South Dakota and Iowa, with historical shells collected from the Minnesota River system in Minnesota. Occurs as far south as northern Mexico and is present in all of the Texas Gulf and Mobile Bay drainages. Common and widespread in eastern Oklahoma. A recent genetic study of L. teres discovered a distinct and co-occurring species (Keogh and Simons, 2019). Some historical shells of L. teres collected from the Arkansas River system in Oklahoma resemble specimens of L. sietmani, but genetic sampling of extant populations is needed.

Life History and Ecology: Usually occurs in quiet or slow-moving water in sandy-muddy bottoms as well as in gravel in stronger current. Long-term brooder that uses a mantle lure to attract fish hosts and is thought to specialize on gars. Opportunistic life history strategy.

Special Status: none

Shell Description: click here for shell description

Literature cited:

Keogh, S. M., & Simons, A. M. (2019). Molecules and morphology reveal ‘new’ widespread North American freshwater mussel species (Bivalvia: Unionidae). Molecular Phylogenetics and Evolution, 138, 182-192.