Sagittunio is a genus of freshwater mussels, which are aquatic bivalve mollusks belonging to the family Unionidae.. Found in freshwater environments such as rivers, streams, lakes, and ponds. The species of this genus are endemic to North America .
Species There are four recognized species: Sagittunio aldermani Watters, 2018 Sagittunio nasutus (Say, 1817) Sagittunio subrostratus (Say, 1831) Sagittunio vaughanianus (Lea I., 1838)
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