The purple bankclimber (''Elliptoideus sloatianus'') is a rare and endangered

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of freshwater mussel, an aquatic

bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...

in the family Unionidae, the river mussels. This species is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. It can be found in the

Chattahoochee The Chattahoochee River forms the southern half of the Alabama and Georgia (U.S. state), Georgia border, as well as a portion of the Florida - Georgia border. It is a tributary of the Apalachicola River, a relatively short river formed by the con ...

, Flint, and Ochlockonee rivers. Its habitats are rivers and streams. It is normally found in medium currents over sand, sand mixed with mud, or gravel substrates, swept free of silt by the current. The threats to this mussel are habitat change, sedimentation, and water quality degradation.

References

Molluscs of the United States Unionidae Bivalves described in 1840 ESA threatened species Taxonomy articles created by Polbot {{Unionidae-stub