Anodonta imbecilis Lea, 1836
‘Say’ of Authors.
Lea, 1836, Synopsis Fam. Naiades: 54.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 264.
Adams & Adams, 1857, Gen. Rec. Moll. 2(31-32): 502.
Say, 1858, [in] Binney, Compl. Writings T. Say: 140.
Lapham, 1860, Proc. Acad. Nat. Sci. 12: 156.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [7].
Pilsbry & Rhoads, 1896, Proc. Acad. Nat. Sci. 48: 506.
Clench & Turner, 1956, Bull. Fla. State Mus. 1: 187.
Murray & Leonard, 1962, Handbk. Unionid Muss. Kansas: 95.
R.I. Johnson, 1970, Bull. MCZ 140(6): 362.
Heard, 1975, Malacologia 15(1): 84.
Kat, 1983, Malacologia 23(2): 362.
Hoeh, 1990, Malac. Review 23: 63.
Lydeard et al., 1996, Philos. Trans. Roy. Soc. London (B, Biol. Sci.) 351: 1595.
Rosenberg et al., 1997, J. Moll. Studies 63: 303.
Adamkewicz et al., 1997, MBE 14(6): 622.
(error for Anodonta imbecillis Say, 1829)

Unio hazelhurstianus B.H. Wright, 1888
‘Lea’ of Authors.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [3].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 719 [as ‘Unio (sec. Elliptio) hazelhurstianus’].
Simpson, 1914, Descr. Cat. Naiades: 648.
Frierson, 1927, Check List N. Amer. Naiades: 29 [as ‘Elliptio (Elliptio) hazelhurstianus’].
Haas, 1969, Das Tierreich 88: 229 [as ‘Elliptio (Elliptio) hazelhurstianus’].
R.I. Johnson, 1970, Bull. MCZ 140(6): 333.
Burch, 1975, Freshw. Unio. North Amer.: 164.
(error for Unio hazlehurstianus Lea, 1858)

Unio nasutilus Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 735.
Simpson, 1914, Descr. Cat. Naiades: 691.
R.I. Johnson, 1970, Bull. MCZ 140(6): 334.
Burch, 1975, Freshw. Unio. North Amer.: 167.
Bogan, 2002, Workbook Key Freshw. Biv. NC: Table 5.
Perkins et al., 2017, Conserv. Genet. 18: 752.
Inoue et al., 2018, Invert. Syst. 32: Table S2.
(error for Unio nasutidus Lea, 1863)

Unio cistelliformis Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 716.
Simpson, 1914, Descr. Cat. Naiades: 641.
Frierson, 1927, Check List N. Amer. Naiades: 29.
Haas, 1969, Das Tierreich 88: 228.
R.I. Johnson, 1970, Bull. MCZ 140(6): 317.
Davis et al., 1981, Biol. J. Linn. Soc. 15: 135.
Davis, 1984, Malacologia 25(2): 631.
Williams et al., 1993, Fisheries 18(9): 11.
Haag, 2012, N. Amer. Freshw. Mussels: 73.
(error for Unio cistellaeformis Lea, 1863)

Unio averillii Simpson, 1900
“Wright” of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 560.
Simpson, 1914, Descr. Cat. Naiades: 138.
Frierson, 1927, Check List N. Amer. Naiades: 76.
R.I. Johnson, 1970, Bull. MCZ 140(6): 373.
R.I. Johnson, 1972, Bull. Fla. State Mus. 16(4): 237.
Burch, 1975, Freshw. Unio. North Amer.: 159.
(error for Unio averellii B.H. Wright, 1888)

Unio cuspitatus R.I. Johnson, 1970
‘Lea’ of Authors.
R.I. Johnson, 1970, Bull. MCZ 140(6): 327.
R.I. Johnson, 1972, Bull. Fla. State Mus. 16(4): 206.
Burch, 1975, Freshw. Unio. North Amer.: 162.
(error for Unio cuspidatus Lea, 1872)

Alasmidonta (Decurambis) marginata Say, 1818

Alasmidonta (Decurambis) varicosa (Lamarck, 1819)
+ Unio rugulosus Wood, 1828
+ Alasmodon corrugata De Kay, 1843

Alasmidonta (Pressodonta) calceola (Lea, 1828)

Alasmidonta (Prolasmidonta) heterodon (Lea, 1829)

Alasmidonta (s.s.) arcula (Lea, 1838)

Alasmidonta (s.s.) triangulata (Lea, 1858)

Alasmidonta (s.s.) undulata (Say, 1817)
+ Unio glabratus Sowerby & Sowerby, 1821
+ Unio hians Valenciennes, 1827
+ Alasmodonta sculptilis Say, 1829
+ Uniopsis radiata Swainson, 1840
+ Uniopsis mytiloides Swainson, 1840
+ Unio swainsoni Sowerby, 1868

Alasmidonta (s.s.) wrightiana (Walker, 1901)

Anodonta (Pyganodon) cataracta cataracta Say, 1817
+ Anodonta fluviatilis Bosc, 1801
+ Anodonta marginata Say, 1817
+ Anodonta teres Conrad, 1834
+ Anodonta excurvata De Kay, 1843
+ Anodonta virgulata Lea, 1857
+ Anodonta lacustris Lea, 1857
+ Anodonta hallenbeckii Lea, 1858
+ Anodonta gesnerii Lea, 1858
+ Anodonta dariensis Lea, 1858
+ Anodonta williamsii Lea, 1862
+ Anodonta tryonii Lea, 1862
+ Anodonta dolearis Lea, 1863
+ Anodonta doliaris Lea, 1863

Anodonta (Pyganodon) cataracta fragilis Lamarck, 1819

Anodonta (Pyganodon) gibbosa Say, 1824

Anodonta (Pyganodon) implicata Say, 1829
+ Anodonta newtonensis Lea, 1838
+ Anodonta housatonica Gould, 1848

Anodonta (Utterbackia) couperiana Lea, 1840
+ Anodonta cowperiana Lea, 1840
+ Anodonta dunlapiana Lea, 1842

Anodonta (Utterbackia) imbecilis [sic] Say, 1829
+ Anodonta (Lastena) ohiensis Rafinesque, 1820
+ Anodonta incerta Lea, 1834
+ Anodon horda Gould, 1855
+ Anodonta henryana Lea, 1857
+ Utterbackia imbecillis fusca F.C. Baker, 1927

Carunculina pulla (Conrad, 1838)
+ Carunculina patrickae Bates, 1966

Elliptio (Canthyria) spinosa (Lea, 1836)

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

Elliptio (s.s.) complanata (Lightfoot, 1786)
+ Unio violaceus Spengler, 1793
+ Unio purpureus Say, 1817
+ Unio rarisulcata Lamarck, 1819
+ Unio coarctata Lamarck, 1819
+ Unio purpurascens Lamarck, 1819
+ Unio rhombula Lamarck, 1819
+ Unio carinifera Lamarck, 1819
+ Unio georgina Lamarck, 1819
+ Unio glabrata Lamarck, 1819
+ Unio sulcidens Lamarck, 1819
+ Unio virginiana Lamarck, 1819
+ Unio (Elliptio) aurata Rafinesque, 1820
+ Unio fluviatilis Green, 1827
+ Unio rigidus Wood, 1828
+ Unio griffithianus Lea, 1834
+ Unio subinflatus Conrad, 1835
+ Unio jejunus Lea, 1838
+ Unio roanokensis Lea, 1838
+ Unio fuliginosus Lea, 1845
+ Unio cuvierianus Lea, 1852
+ Unio errans Lea, 1856
+ Unio vicinus Lea, 1856
+ Unio geminus Lea, 1856
+ Unio abbevillensis Lea, 1857
+ Unio percoarctatus Lea, 1857
+ Unio wheatleyi Lea, 1857
+ Unio catawbensis Lea, 1857
+ Unio insulsus Lea, 1857
+ Unio spadiceus Lea, 1857
+ Unio macer Lea, 1857
+ Unio contractus Lea, 1857
+ Unio virens Lea, 1857
+ Unio savannahensis Lea, 1857
+ Unio subflavus Lea, 1857
+ Unio fumatus Lea, 1857
+ Unio subniger Lea, 1857
+ Unio neusensis Lea, 1858
+ Unio purus Lea, 1858
+ Unio exactus Lea, 1858
+ Unio postellii Lea, 1858
+ Unio roswellensis Lea, 1858
+ Unio burkensis Lea, 1859
+ Unio hallenbeckii Lea, 1859
+ Unio baldwinensis Lea, 1859
+ Unio salebrosus Lea, 1859
+ Unio raeensis Lea, 1859
+ Unio latus Lea, 1859
+ Unio quadratus Lea, 1859
+ Unio squameus Lea, 1861
+ Unio rostrum Lea, 1861
+ Unio northamptonensis Lea, 1861
+ Unio decumbens Lea, 1861
+ Unio raleighensis Lea, 1863
+ Unio aberrans Lea, 1863
+ Unio weldonensis Lea, 1863
+ Unio mecklenbergensis Lea, 1863
+ Unio chathamensis Lea, 1863
+ Unio gastonensis Lea, 1863
+ Unio quadrilaterus Lea, 1863
+ Unio indefinilus Lea, 1863
+ Unio cistellaeformis Lea, 1863
+ Unio mediocris Lea, 1863
+ Unio perlucens Lea, 1863
+ Unio curatus Lea, 1863
+ Unio protensus Lea, 1865
+ Unio lazarus Sowerby, 1868
+ Unio beaverensis Lea, 1868
+ Unio nubilus Lea, 1868
+ Unio datus Lea, 1868
+ Unio humerosus Lea, 1868
+ Unio uhareensis Lea, 1868
+ Unio tortuosus Sowerby, 1868
+ Unio santeensis Lea, 1871
+ Unio yadkinensis Lea, 1872
+ Unio amplus Lea, 1872
+ Unio ligatus Lea, 1872
+ Unio differtus Lea, 1872
+ Unio subparallelus Lea, 1872
+ Unio oblongus Lea, 1872
+ Unio curvatus Lea, 1872
+ Unio irwinensis Lea, 1872
+ Unio subsquamosus Lea, 1872
+ Unio infuscus Lea, 1872
+ Unio ratus Lea, 1872
+ Unio basalis Lea, 1872
+ Unio dissimilis Lea, 1872
+ Unio cirratus Lea, 1874
+ Unio subolivaceus Lea, 1874
+ Unio infulgens Lea, 1874
+ Unio corneus Lea, 1874
+ Unio dooleyensis Lea, 1874
+ Unio gesnerii Lea, 1874
+ Unio invenustus Lea, 1874
+ Unio palliatus Ravenel, 1875
+ Unio (Arconaia) provancheriana Pilsbry, 1890
+ Unio pullatus var. majusculus de Gregorio, 1914
+ Unio complanatus mainensis Rich, 1915
+ Unio indefinitus Haas, 1969

Elliptio (s.s.) congaraea (Lea, 1831)
+ Unio fulvus Lea, 1834
+ Unio lecontianus Lea, 1838
+ Unio planilateris Conrad, 1838
+ Unio pusillus Lea, 1840
+ Unio sordidus Lea, 1852
+ Unio gibbesianus Lea, 1852
+ Unio rufusculus Lea, 1852
+ Unio forbesianus Lea, 1852
+ Unio buxeus Lea, 1852
+ Unio moussonianus Lea, 1852
+ Unio corvus Lea, 1859
+ Unio vestitus Lea, 1861
+ Unio dorsatus Lea, 1868
+ Unio strumosus Lea, 1872

Elliptio (s.s.) crassidens crassidens (Lamarck, 1819)
+ Unio (Elliptio) nigra Rafinesque, 1820
+ Unio cuneatus Barnes, 1823
+ Unio incrassatus Lea, 1840
+ Unio discus Sowerby, 1868
+ Unio lehmanii S.H. Wright, 1897
+ Unio danielsii B.H. Wright, 1899
+ Unio polymorphus B.H. Wright, 1899
+ Elliptio pachyodon Olson & Harbison, 1953

Elliptio (s.s.) crassidens downiei (Lea, 1858)
+ Unio satillaensis Lea, 1858
+ Unio spissus Lea, 1859

Elliptio (s.s.) dariensis (Lea, 1842)
+ Unio monroensis Lea, 1843
+ Unio websterii B.H. Wright, 1888
+ Unio hartwrightii B.H. Wright, 1896

Elliptio (s.s.) dilatata (Rafinesque, 1820)
+ Obliquaria (Ellipsaria) cuprea Rafinesque, 1820

Elliptio (s.s.) fraterna (Lea, 1852)
+ Unio anthonyi Lea, 1861
+ Elliptio mcmichaeli Clench & Turner, 1956

Elliptio (s.s.) hopetonensis (Lea, 1838)
+ Unio inusitatis Lea, 1859

Elliptio (s.s.) icterina (Conrad, 1834)
+ Unio raveneli Conrad, 1834
+ Unio confertus Lea, 1834
+ Margarita (Unio) watereensis Lea, 1836
+ Unio lugubris Lea, 1838
+ Unio geddingsianus Lea, 1840
+ Unio fuscatus Lea, 1843
+ Unio occultus Lea, 1843
+ Unio limatulus Conrad, 1849
+ Unio tuomeyi Lea, 1852
+ Unio whiteianus Lea, 1852
+ Unio barrattii Lea, 1852
+ Unio pullatis Lea, 1856
+ Unio pullatus Lea, 1856
+ Unio coruscus Gould, 1856
+ Unio micans Lea, 1857
+ Unio obnubilus Lea, 1857
+ Unio opacus Lea, 1857
+ Unio similis Lea, 1857
+ Unio sublatus Lea, 1857
+ Unio viridicatus Lea, 1857
+ Unio tetricus Lea, 1857
+ Unio aequatus Lea, 1857
+ Unio aquilus Lea, 1857
+ Unio viridiradiatus Lea, 1859
+ Unio hepaticus Lea, 1859
+ Unio viridans Lea, 1859
+ Unio verutus Lea, 1859
+ Unio ocmulgeensis Lea, 1861
+ Unio mercerii Lea, 1862
+ Unio lucidus Lea, 1863
+ Unio livingstonensis Lea, 1863
+ Unio ablatus Lea, 1863
+ Unio radiolus Lea, 1871
+ Unio cuspidatus Lea, 1872
+ Unio hastatus Lea, 1874
+ Unio fryanus B.H. Wright, 1888
+ Unio nolani B.H. Wright, 1888
+ Unio simpsoni B.H. Wright, 1888
+ Unio burtchianus S.H. Wright, 1897
+ Unio diazensis S.H. Wright, 1897
+ Unio dispalans B.H. Wright, 1899
+ Unio singularis B.H. Wright, 1899
+ Unio oblatus Simpson, 1900
+ Elliptio cylindraceus Frierson, 1927
+ Elliptio maywebbae B.H. Wright, 1934

Elliptio (s.s.) lanceolata (Lea, 1828)
+ Unio angustatus Lea, 1831
+ Unio productus Conrad, 1836
+ Unio fisherianus Lea, 1838
+ Unio folliculatus Lea, 1838
+ Unio duttonianus Lea, 1841
+ Unio sagittiformis Lea, 1852
+ Unio rostraeformis Lea, 1856
+ Unio rostriformis Lea, 1856
+ Unio extensus Lea, 1857
+ Unio emmonsii Lea, 1857
+ Unio naviculoides Lea, 1857
+ Unio maconensis Lea, 1857
+ Unio hazlehurstianus Lea, 1858
+ Unio viridulus Lea, 1863
+ Unio nasutidus Lea, 1863
+ Unio nasutulus Lea, 1866
+ Unio attenuatus Lea, 1872
+ Unio rostellum Lea, 1872
+ Unio exacutus Lea, 1872
+ Unio subcylindraceus Lea, 1874
+ Unio arctior var. fisheropsis de Gregorio, 1914

Elliptio (s.s.) shepardiana (Lea, 1834)

Elliptio (s.s.) waccamawensis (Lea, 1863)

Lampsilis (s.s.) cariosa (Say, 1817)
+ Lampsilis pallida Rafinesque, 1820
+ Unio ovata Valenciennes, 1827
+ Unio crocatus Lea, 1841
+ Unio oratus Conrad, 1849

Lampsilis (s.s.) dolabraeformis (Lea, 1838)

Lampsilis (s.s.) ochracea (Say, 1817)
+ Mytilus fluviatilis Gmelin, 1791
+ Lampsilis rosea Rafinesque, 1820
+ Unio rosaceus Conrad, 1849

Lampsilis (s.s.) ovata (Say, 1817)
+ Lampsilis cardium Rafinesque, 1820
+ Unio ventricosus Barnes, 1823
+ Unio occidens Lea, 1829
+ Unio subovatus Lea, 1831
+ Unio lenis Conrad, 1838
+ Unio canadensis Lea, 1857
+ Unio latissimus Sowerby, 1868
+ Lampsilis ventricosa cohongoronta Ortmann, 1912
+ Lampsilis (s.s.) ventricosa var. lurida Simpson, 1914
+ Lampsilis ventricosa winnebagoensis F.C. Baker, 1928
+ Lampsilis ventricosa perglobosa F.C. Baker, 1928

Lampsilis (s.s.) radiata radiata (Gmelin, 1791)
+ Unio luteola Lamarck, 1819
+ Unio lineata Bory de St. Vincent, 1827
+ Unio oblongatus Wood, 1828
+ Unio tenebrosus Conrad, 1834
+ Unio melinus Conrad, 1838
+ Unio boydianus Lea, 1840
+ Unio rosaceus De Kay, 1843
+ Unio elongata Goodrich, 1859
+ Unio obliquiradiatus Reeve, 1865
+ Unio virginana Reeve, 1865
+ Unio conspicuus Lea, 1872
+ Lampsilis radiata oneidensis F.C. Baker, 1916
+ Unio virginea Frierson, 1927

Lampsilis (s.s.) splendida (Lea, 1838)
+ Unio regularis Sowerby, 1866

Lasmigona (Platynaias) subviridis (Conrad, 1835)
+ Unio viridis Conrad, 1835
+ Unio tappanianus Lea, 1838
+ Unio hyalinus Lea, 1845
+ Unio decoratus Lea, 1852
+ Unio pygmaeus Lea, 1852
+ Unio charlottensis Lea, 1863
+ Unio pertenuis Lea, 1863
+ Unio insolidus Lea, 1872

Lasmigona (s.s.) costata (Rafinesque, 1820)

Ligumia nasuta (Say, 1817)
+ Obliquaria (Ellipsaria) attenuata Rafinesque, 1820
+ Unio rostrata Valenciennes, 1827
+ Unio fisherianus Küster, 1861
+ Unio vaughanianus Sowerby, 1868

Pleurobema (Lexingtonia) collina Conrad, 1836

Pleurobema (Lexingtonia) masoni (Conrad, 1834)
+ Unio subplanus Conrad, 1837
+ Unio pumilus Lea, 1838
+ Unio merus Lea, 1852
+ Unio striatulus Lea, 1857
+ Unio castus Lea, 1860
+ Unio brimleyi S.H. Wright, 1897

Strophitus undulatus (Say, 1817)
+ Anodonta pensylvanica Lamarck, 1819
+ Anodon rugosus Swainson, 1822
+ Anodon areolatus Swainson, 1829
+ Alasmodonta edentula Say, 1829
+ Anodonta virgata Conrad, 1836
+ Anodonta pavonia Lea, 1838
+ Anodonta wardiana Lea, 1838
+ Anodon unadilla De Kay, 1843
+ Anodonta tetragona Lea, 1845
+ Anodonta arkansensis Lea, 1852
+ Anodonta shaefferiana Lea, 1852
+ Alasmodon rhombica J.G. Anthony, 1865
+ Anodon papyracea J.G. Anthony, 1865
+ Anodon annulatus Sowerby, 1867
+ Anodon quadriplicatus Sowerby, 1870
+ Anodonta salmonea Clessin, 1873
+ Strophitus undulatus ovatus Frierson, 1927
+ Strophitus rugosus pepinensis F.C. Baker, 1928
+ Strophitus rugosus winnebagoensis F.C. Baker, 1928
+ Strophitus rugosus lacustris F.C. Baker, 1928

Uniomerus tetralasmus (Say, 1831)
+ Unio obesus Lea, 1831
+ Unio declivis Say, 1831
+ Unio camptodon Say, 1832
+ Unio geometricus Lea, 1834
+ Unio blandingianus Lea, 1834
+ Unio declivis Conrad, 1836
+ Unio excultus Conrad, 1838
+ Unio sayii Tappan, 1839
+ Unio parallelus Conrad, 1841
+ Unio buddianus Lea, 1843
+ Unio symmetricus Lea, 1845
+ Unio paludicolus Gould, 1845
+ Unio ineptus Lea, 1852
+ Unio hebes Lea, 1852
+ Unio rivularis Conrad, 1853
+ Unio paludicolor Conrad, 1853
+ Unio porrectus Conrad, 1854
+ Unio subcroceus Conrad, 1854
+ Unio manubius Gould, 1855
+ Unio columbensis Lea, 1857
+ Unio jamesianus Lea, 1857
+ Unio plantii Lea, 1857
+ Unio cicur Lea, 1861
+ Unio squalidus Lea, 1863
+ Unio electrinus Reeve, 1865
+ Unio bisselianus Lea, 1867
+ Unio jewettii Lea, 1867
+ Unio rivicolus Conrad, 1868
+ Unio pawensis Lea, 1868

Villosa constricta (Conrad, 1838)
+ Unio genthii Lea, 1857

Villosa delumbis (Conrad, 1834)
+ Unio tenerus Ravenel, 1834
+ Unio vaughanianus Lea, 1838
+ Unio ogeecheensis Conrad, 1849
+ Unio concavus Lea, 1852
+ Unio proximus Lea, 1852
+ Unio contiguus Lea, 1861
+ Unio genuinus Lea, 1868

Villosa vibex (Conrad, 1834)
+ Unio modioliformis Lea, 1834
+ Unio exiguus Lea, 1840
+ Unio stagnalis Conrad, 1849
+ Unio prevostianus Lea, 1852
+ Unio nigrinus Lea, 1852
+ Unio gracilior Lea, 1856
+ Unio rutilans Lea, 1856
+ Unio subellipsis Lea, 1856
+ Unio sudus Lea, 1857
+ Unio obfuscus Lea, 1857
+ Unio dispar Lea, 1860
+ Unio averellii B.H. Wright, 1888

Villosa villosa (Wright, B.H., 1898)