Unioninae

The following classification is based on MolluscaBase and the MUSSEL Project database:^[1][2]

• 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 &Wuin 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.^[2][3]