Anodonta anatina (Linnaeus, 1758)

Anodonta aquensis Matheron, 1843

Anodonta arnoldi C.E. Weaver & K. van. W. Palmer, 1922

Anodonta arzniana Bogachev, 1936

Anodonta athlios (Mayer, 1869)

Anodonta becklesi R.B. Newton, 1910

Anodonta bronni D’Ancona, 1867

Anodonta californiensis I. Lea, 1852

Elliptio ahenea (I. Lea, 1843)
+ Unio waltoni B.H. Wright, 1888

Elliptio albertensis (Whiteaves, 1885)

Elliptio angustata (I. Lea, 1831)
+ Unio subcylindraceus Lea, 1874

Elliptio arca (Conrad, 1834)
+ Unio luridus Lea, 1852
+ Unio subgibbosus Lea, 1857
+ Unio rufus Lea, 1857

Elliptio arctata (Conrad, 1834)
+ Unio tortivus Lea, 1840
+ Unio strigosus Lea, 1840
+ Unio perstriatus Lea, 1852
+ Unio lazarus Lea, 1852
+ Unio gracilentus Lea, 1857
+ Unio viridans Lea, 1859
+ Unio perlatus Lea, 1863

Elliptio chipolaensis (B. Walker, 1905)

Elliptio cistellaeformis (I. Lea, 1863)
+ Unio cistelliformis Simpson, 1900

Elliptio clinopisthus (C.A. White, 1882)

Elliptio complanata ([Lightfoot], 1786)

Elliptio congaraea (I. Lea, 1831)

Elliptio cornelliana (Maury, 1902)

Elliptio crassidens (Lamarck, 1819)
+ Unio (Elliptio) nigra Rafinesque, 1820

Elliptio dariensis (I. Lea, 1842)

Elliptio downiei (I. Lea, 1858)

Elliptio fisheriana (I. Lea, 1838)

Elliptio folliculata (I. Lea, 1838)

Elliptio fraterna (I. Lea, 1852)

Elliptio fumata (I. Lea, 1857)

Elliptio haydeni (Meek, 1860)

Elliptio hoelzli Modell, 1943

Elliptio hopetonensis (I. Lea, 1838)

Elliptio hubbardii (Gabb, 1869)

Elliptio icterina (Conrad, 1834)

Elliptio jayensis (I. Lea, 1838)

Elliptio judithae A.H. Clarke, 1986

Elliptio lanceolata (I. Lea, 1827)

Elliptio larteti (Noulet, 1846)

Elliptio marsupiobesa Fuller, 1972

Elliptio mcmichaeli Clench & R.D. Turner, 1956

Elliptio monroensis (I. Lea, 1843)

Elliptio mormonum La Rocque, 1960

Elliptio nanaimoensis (Whiteaves, 1901)

Elliptio nasutidus (I. Lea, 1863)

Elliptio nigella (I. Lea, 1852)

Elliptio occulta (I. Lea, 1843)

Elliptio pachyodon Pilsbry, 1953

Elliptio producta (Conrad, 1836)

Elliptio pullata (I. Lea, 1857)

Elliptio purpurella (I. Lea, 1857)

Elliptio roanokensis (I. Lea, 1838)

Elliptio salissiensis L.S. Russell, 1952

Elliptio shepardiana (I. Lea, 1834)

Elliptio spinosa (I. Lea, 1836)

Elliptio washakiensis (Meek, 1871)

Toxolasma corvunculus (I. Lea, 1868)

Toxolasma cylindrellum (I. Lea, 1868)

Toxolasma lividum Rafinesque, 1831
+ Unio glans Lea, 1831
+ Unio maestus Lea, 1842
+ Unio castus var. mirus de Gregorio, 1914

Toxolasma parvum (Barnes, 1823)
+ Unio pertennis de Gregorio, 1914
+ Carunculina parva cahni F.C. Baker, 1927

Toxolasma paulum (I. Lea, 1840)
+ Unio minor Lea, 1843
+ Unio germanus Lea, 1861
+ Unio granulatus Lea, 1861
+ Unio marginis Lea, 1865
+ Unio cromwellii Lea, 1865
+ Unio corvinus Lea, 1868

Toxolasma pullum (Conrad, 1838)
+ Carunculina patrickae Bates, 1966

Toxolasma texasiense (I. Lea, 1857)
+ Unio bairdianus Lea, 1857
+ Unio texasensis Lea, 1860
+ Unio bealei Lea, 1862
+ Lampsilis (Carunculina) texasensis var. compressus Simpson, 1900
+ Lampsilis mearnsi Simpson, 1900