Unionidae Fleming, 1828

Actinonaias Crosse & P. Fischer, 1893

Acuticosta Simpson, 1900

Afronaia Haas, 1962

Alasmidonta Say, 1818

Amblema Rafinesque, 1820

Amphinaias Fischer & Crosse, 1894

Anatiniana Bourguignat, 1881

Anodonta Lamarck, 1799

Anodontoides Baker, 1898

Arcidens Simpson, 1900

Arcidopsis Simpson, 1900

Arconaia Conrad, 1865

Ariocaelatura Germain, 1921

Arkansia Ortmann & Walker, 1912

Arotonaias Martens, 1900

Artonaias Simpson, 1914

Aurora Simpson, 1900

Balwantia Prashad, 1919

Barynaias Crosse & Fischer, 1894

Brazzaea Bourguignat, 1885

Caelatura Fischer, 1883

Caenonaias Crosse & Fischer, 1894

Cafferia Simpson, 1900

Canthyria Swainson, 1840

Chamberlainia Simpson, 1900

Christadens Simpson, 1914

Coelatura Pfeiffer, 1877

Cokeria Marshall, 1916

Colletopterum Bourguignat, 1880

Collopterum Bédé, 1932

Conchodromus Haas, 1930

Contradens Haas, 1913

Corunculina Simpson, 1898

Crassiana Locard, 1889

Cristaria Westerlund, 1884

Ctenodesma Simpson, 1900

Cuneopsis Simpson, 1900

Cyclonaias Pilsbry, 1922

Cyprogenia Agassiz, 1852

Cyrtonaias Crosse & P. Fischer, 1894

Daliella Preston, 1912

Dalliella Simpson, 1900

Decarambis Paetel, 1875

Delphinonaias Crosse & Fischer, 1894

Delphinonais Frierson, 1927

Diaurora Cockerell, 1903

Disconaias P. Fischer & Crosse, 1894

Dromus Simpson, 1900

Dysnomia L. Agassiz, 1852

Ellipsaria Rafinesque, 1820

Elliptio Rafinesque, 1819

Elliptoideus Frierson, 1927

Elongaria Haas, 1912

Ensidens Frierson, 1911

Epioblasma Rafinesque, 1831

Eurinea Conrad, 1853

Euryma Baker, 1898

Eurynaia Frierson, 1927

Eurynea Paetel, 1875

Eurynia Rafinesque, 1819

Friersonia Ortmann, 1912

Fusconaia Simpson, 1900

Glebula Conrad, 1853

Gonidea Conrad, 1857

Grandidieria Bourguignat, 1885

Hamiota Roe & Hartfield, 2005

Hemistena Rafinesque, 1820

Holandriana Locard, 1889

Hollandriana Germain, 1904

Hyriopsis Conrad, 1853

Iheringella Pilsbry, 1893

Indonaia Prashad, 1918

Inversidens Haas, 1911

Inversiunio

Lamellidens Simpson, 1900

Lamproscapha Swainson, 1840

Lamprotula Simpson, 1900

Lampsilis Rafinesque, 1820

Lanceolaria Conrad, 1853

Lasmigona Rafinesque, 1831

Lastena Rafinesque, 1820

Lastenes Desmarest, 1859

Leguminaia Conrad, 1865

Lemiox Rafinesque, 1831

Lepidodesma Simpson, 1895

Leptodea Rafinesque, 1820

Lexingtonia Ortmann, 1914

Ligumia Swainson, 1840

Locardiana Locard, 1889

Lostena Gray, 1847

Magnonaias Utterback, 1915

Margaritanopsis Haas, 1912

Medionidus Simpson, 1900

Megalonaias Utterback, 1915

Mesohyridella McMichael, 1957

Mesonaias Crosse & Fischer, 1894

Microcondylaea Vest, 1866

Microcondylus Drouet, 1879

Micromya Agassiz, 1852

Micronaias Simpson, 1900

Modellnaia Brandt, 1974

Mweruella Haas, 1936

Nayadina Gregorio, 1914

Nephritica Frierson, 1927

Nephronaias Crosse & Fischer, 1894

Nephronajas Baker, 1916

Nepronaias Simpson, 1900

Nitia Pallary, 1924

Nyassunio Haas, 1936

Obliquaria Rafinesque, 1820

Obovalis Simpson, 1900

Obovaria Rafinesque, 1819

Oguranodonta Kuroda & Habe, 1987

Onodon Partington, 1835-37

Oxynaia Haas, 1913

Pachynaias Fischer & Crosse, 1894

Paranodonta Kobayashi & Susuki, 1936

Parreysia Conrad, 1853

Pegias Simpson, 1900

Pegius

Penchinatiana Locard, 1889

Physunio Simpson, 1900

Pilsbryoconcha Simpson, 1900

Plagiodon Lea, 1856

Plectomerus Conrad, 1853

Plesielliptio Russell, 1934

Plethobasus Simpson, 1900

Pleurobema Rafinesque, 1819

Pleuronaia Frierson, 1927

Pleuronia Frierson, 1927

Plicatounio Kobayashi & Susuki, 1936

Popenaias Frierson, 1927

Popenais Frierson, 1927

Potamilus Rafinesque, 1818

Potomida Swainson, 1840

Pressidens Haas, 1910

Prisodontopsis Tomlin, 1928

Prohyria McMichael, 1957

Pronodularia Starobogatov, 1970

Propehyridella Cotton & Gabriel, 1932

Proptera Rafinesque, 1819

Protohyridella Cotton & Gabriel, 1932

Protunio Haas, 1913

Pseudanodonta Bourguignat, 1876

Pseudodon Gould, 1844-45

Pseudodontopsis Kobelt, 1912

Pseudospatha Simpson, 1900

Pseudunio Haas, 1910

Psoronaias Crosse & Fischer, 1894

Pterosygna Simpson, 1900

Ptychobranchus Frierson, 1927

Ptychorhynchus Simpson, 1900

Pyganodon Crosse & P. Fischer, 1894

Quadrula Rafinesque, 1820

Quincuncina Ortmann, 1922

Radiatula Simpson, 1900

Rectidens Simpson, 1900

Renatus Rochebrune, 1904

Reneus Jousseaume, 1886

Rhabdotophorus Russell, 1935

Rhombuniopsis Haas, 1920

Rotundaria Rafinesque, 1820

Ruellania Bourguignat, 1885

Scabies Haas, 1911

Schistodesma Simpson, 1900

Schistodesmus

Shistodesma Simpson, 1900

Shistodesmus Simpson, 1900

Simonaias Crosse & Fischer, 1894

Simponella Haas, 1914

Simpsonaias Frierson, 1914

Simpsonella Cockerell, 1903

Sinanodonta Modell, 1945

Solenaia Conrad, 1868

Strophitus Rafinesque, 1820

Symphinota Villa, 1841

Symphionata Philippi, 1853

Symphonota Berge, 1847

Symphynota Lea, 1829

Symphyonota Philippi, 1853

Tetraplodon Spix, 1827

Theliderma Swainson, 1840

Toxolasma Rafinesque, 1831

Trapezoideus Simpson, 1900

Tritogonia Agassiz, 1852

Truncilla Rafinesque, 1819

Uniandra Haas, 1912

Unio Philipsson, 1788

Uniomerus Conrad, 1853

Utterbachia Baker, 1927

Utterbackia Frierson, 1927

Venustaconcha Thiele, 1934