''Obovaria'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

freshwater mussel Freshwater bivalves are molluscs of the order Bivalvia that inhabit freshwater ecosystems. They are one of the two main groups of freshwater molluscs, along with freshwater snails. The majority of bivalve molluscs are saltwater species that l ...

s, aquatic

bivalve Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed b ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the family

Unionidae The Unionidae are a Family (biology), family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply as unionids. The range of distribution for this family is world-wide. It is a ...

, the river mussels. There are at least six described species in ''Obovaria'' at present, all of which are found in the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. ''Obovaria subrotunda'' is found in Canada as well.

Species

* ''

Obovaria arkansasensis ''Obovaria arkansasensis'', the Southern Hickorynut, is a species of freshwater mussel, an Aquatic animal, aquatic bivalve mollusc in the family Unionidae, the river mussels. It lives in the southern United States, and has a complex life history ...

'' (I. Lea, 1862) * '' Obovaria haddletoni'' (Athearn, 1964) (Haddleton lampmussel), (

Critically Endangered An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of t ...

) * '' Obovaria jacksoniana'' (Frierson, 1912) (Southern hickorynut) * ''

Obovaria olivaria ''Obovaria olivaria'' is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is commonly referred to as hickorynut. The species is native to eastern North America. It is found in the drainag ...

'' (

Rafinesque Constantine Samuel Rafinesque-Schmaltz (; 22 October 178318 September 1840) was a French early 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ult ...

, 1820) (Hickorynut)

* '' Obovaria retusa'' (

Lamarck Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biolo ...

, 1819) (Golf stick pearly mussel or ring pink mussel), (

) * '' Obovaria subrotunda'' (Rafinesque, 1820) (Round hickorynut) * '' Obovaria unicolor'' (Lea, 1845) (Alabama hickorynut)

References

Bivalve genera Taxa named by Constantine Samuel Rafinesque Taxonomy articles created by Polbot {{Unionidae-stub