Unioninae is a subfamily of freshwater mussels in the family Unionidae. This superfamily has a wide distribution, being found throughout Eurasia, North America (including Central America) and Africa.

Systematics

The following classification is based on MolluscaBase and the MUSSEL Project database:

  • Tribe Anodontini Rafinesque, 1820 Genus Alasmidonta Say, 1818 Genus Anodonta Lamarck, 1799 Genus Anodontoides C. T. Simpson, 1898 Genus Arcidens C. T. Simpson, 1900 Genus †Cyclanodonta Starobogatov, 1970 Genus Lasmigona Rafinesque, 1831 Genus †Modelliella Starobogatov, 1970 Genus Pegias C. T. Simpson, 1900 Genus Pseudanodonta Bourguignat, 1877 Genus Pseudodontoideus Frierson, 1927 Genus Pyganodon Crosse & P. Fischer, 1894 Genus †Sichuanoconcha X.-Z. Liu, 1984 Genus Simpsonaias Frierson, 1914 Genus Simpsonella Cockerell, 1903 Genus Strophitus Rafinesque, 1820 Genus Utterbackia F. C. Baker, 1927 Genus Utterbackiana Frierson, 1927
  • Tribe Cristariini Lopes-Lima, Bogan & Froufe, 2017 Genus Amuranodonta Moskvicheva, 1973 Genus Anemina F. Haas, 1969 Genus Beringiana Starobogatov in Zatravkin, 1983 Genus Buldowskia Moskvicheva, 1973 Genus Cristaria Schumacher, 1817 Genus Pletholophus C. T. Simpson, 1900 Genus Sinanodonta Modell, 1945
  • Tribe Lanceolariini Froufe, Lopes-Lima & Bogan, 2017 Genus Lanceolaria Conrad, 1853
  • Tribe Lepidodesmini Huang & Wu in Huang et al. 2019 Genus Lepidodesma C. T. Simpson, 1896
  • Tribe Middendorffinaiini Lopes-Lima, Bolotov & Bogan, 2020 Genus Middendorffinaia Moskvicheva & Starobogatov, 1973
  • Tribe Nodulariini Starobogatov & Zatravkin, 1987 Genus Cuneopsis C. T. Simpson, 1900 Genus Inversiunio Habe, 1991 Genus Nodularia Conrad, 1853 Genus Pseudocuneopsis X. Huang, Y. Dai, Z. Chen & X. Wu, 2022 Genus Schistodesmus C. T. Simpson, 1900 Genus Tchangsinaia Starobogatov, 1970
  • Tribe Unionini Rafinesque, 1820 Genus Aculamprotula X.-P. Wu, Y.-L. Liang, H.-Z. Wang & S. Ouyang, 1999 Genus Acuticosta C. T. Simpson, 1900 Genus †Betekeia Starobogatov, 1970 Genus Diaurora Cockerell, 1903 Genus †Heterunio Lindholm, 1932 Genus †Modellinaia Starobogatov, 1970 Genus †Palindonaia Modell, 1950 Genus †Pristinunio Starobogatov, 1970 Genus Protunio P. Haas, 1913 Genus Pseudobaphia C. T. Simpson, 1900 Genus Rhombuniopsis F. Haas, 1920 Genus †Rumanunio Starobogatov, 1970 Genus †Sculptunio Lindholm, 1932 Genus †Sibirunio Starobogatov, 1970 Genus †Tuberunio Lindholm, 1932 Genus Unio Philipsson, 1788

The MUSSEL Project database and ITIS instead only divide the subfamily into five tribes, with Anodontini having three subtribes.