Publication Frierson (1927): taxonomic opinionspublication summary
Complete CitationFrierson, L.S. 1927. A Classified and Annotated Check List of the North American Naiades. 111 pp. Available electronically.
Taxonomic OpinionsAlasmidonta (Bullella) arcula (Lea, 1838) = Alasmidonta arcula Alasmidonta (Pressodonta) calceola (Lea, 1828) = Sulcularia viridis
+ Margaritana deltoidea Lea, 1838
+ Alasmodonta truncata Conrad, 1834
+ Alasmidonta marginata Say, 1834 Alasmidonta (Pressodonta) calceola-minor (Lea, 1845) = Sulcularia viridis Alasmidonta (Prolasmidonta) heterodon (Lea, 1829) = Prolasmidonta heterodon Alasmidonta (s.s.) triangulata (Lea, 1858) = Alasmidonta triangulata Alasmidonta (s.s.) undulata (Say, 1817) = Alasmidonta undulata
+ Alasmodonta sculptilis Say, 1829
+ Unio hians Valenciennes, 1827 Alasmidonta (s.s.) undulata-mytiloides (Swainson, 1840) = Alasmidonta undulata
+ Uniopsis radiata Swainson, 1840
+ Unio swainsoni Sowerby, 1868 Alasmidonta (Sulcularia) badia (Rafinesque, 1831) = Alasminota holstonia
+ Margaritana holstonia Lea, 1838
+ Margaritana etowaensis Conrad, 1849
+ Margaritana georgiana Lea, 1859
+ Margaritana etowahensis Lea, 1858
+ Alasmodonta impressa J.G. Anthony, 1865
+ Unio holstonianus Sowerby, 1868 Alasmidonta (Sulcularia) badia (Rafinesque, 1831) = Sulcularia viridis Alasmidonta (Sulcularia) badia (Rafinesque, 1831) = Alasminota etowaensis Alasmidonta (Sulcularia) diversa (Conrad, 1856) = Sulcularia viridis Amblema (Megalonaias) gigantea (Barnes, 1823) = Amblema plicata
+ Unio undulatus Barnes, 1823
+ Unio heros Say, 1829
+ Unio multiplicatus Lea, 1831
+ Unio eightsii Lea, 1860
+ Unio atrocostatus Reeve, 1864 Amblema (Megalonaias) gigantea (Barnes, 1823) = Megalonaias nervosa Amblema (Megalonaias) gigantea-boykiniana (Lea, 1840) = Megalonaias nervosa Amblema (Megalonaias) nickliniana (Lea, 1834) = Megalonaias nickliniana Amblema (Megalonaias) nickliniana-digitata (Morelet, 1851) = Megalonaias nickliniana
+ Unio (Crenodonta) stolli Martens, 1900 Amblema (Megalonaias) triumphans (Wright, B.H., 1898) = Megalonaias nervosa Amblema (Plectomerus) dombeyana (Valenciennes, 1827) = Plectomerus dombeyanus
+ Unio crassidens Lamarck, 1819
+ Bariosta ponderosus Rafinesque, 1831
+ Unio interruptus Say, 1831
+ Unio trapezoides Lea, 1831
+ Quadrula trapezoides var. pentagonoides Frierson, 1902 Amblema (s.s.) plicata (Say, 1819) = Amblema plicata
+ Unio rariplicata Lamarck, 1819
+ Unio peruviana Lamarck, 1819
+ Unio heros Küster, 1855 Amblema (s.s.) plicata-costata Rafinesque, 1820 = Amblema plicata
+ Unio latecostatus Lea, 1845
+ Unio atrocostatus Sowerby, 1868 Amblema (s.s.) plicata-costata Rafinesque, 1820 = Megalonaias nervosa Amblema (s.s.) plicata-elliottii (Lea, 1856) = Amblema elliottii Amblema (s.s.) plicata-hippopaea [sic] Lea, 1845 = Amblema plicata Amblema (s.s.) plicata-neisleri (Lea, 1858) = Amblema neislerii Amblema (s.s.) plicata-perplicata (Conrad, 1841) = Amblema plicata
+ Unio atrocostatus Lea, 1845
+ Unio brazosensis Lea, 1868
+ Unio pearlensis Conrad, 1855
+ Unio lincecumii Lea, 1868
+ Unio pauciplicatus Lea, 1872
+ Unio perlensis Reeve, 1864 Amblema (s.s.) plicata-pilsbryi (Marsh, 1891) = Amblema plicata Amblema (s.s.) plicata-quintardi (Cragin, 1887) = Amblema plicata Amblema (s.s.) plicata-southalli (Marshall, 1916) = Amblema plicata Anodonta (Anodontoides) birgei (Baker, F.C., 1923) = Anodontoides ferussacianus Anodonta (Anodontoides) ferussaciana Lea, 1834 = Anodontoides ferussacianus
+ Anodonta ferruginea Lea, 1840
+ Anodonta argentea Lea, 1840
+ Anodonta denigrata Lea, 1852
+ Anodonta oblita Lea, 1852
+ Anodonta buchanensis Lea, 1838
+ Anodonta simpsoniana Lea, 1861
+ Anodon plicatus Haldeman, 1842 Anodonta (Anodontoides) ferussaciana Lea, 1834 = Pyganodon grandis Anodonta (Anodontoides) ferussaciana Lea, 1834 = Anodontoides denigratus Anodonta (Anodontoides) ferussaciana-subcylindracea Lea, 1838 = Anodontoides ferussacianus Anodonta (Anodontoides) modesta Lea, 1857 = Anodontoides ferussacianus Anodonta (Arnoldina) dejecta Lewis, 1875 = Anodonta californiensis
+ Anodonta mearnsiana Simpson, 1893 Anodonta (Lastena) couperiana Lea, 1840 = Utterbackiana couperiana
+ Anodonta cowperiana Lea, 1840 Anodonta (Lastena) couperiana-dunlapiana Lea, 1842 = Utterbackiana couperiana Anodonta (Lastena) ohiensis Rafinesque, 1820 = Utterbackia imbecillis
+ Anodonta imbecillis Say, 1829
+ Anodonta incerta Lea, 1834
+ Anodonta henryana Lea, 1857 Anodonta (Lastena) ohiensis Rafinesque, 1820 = Potamilus ohiensis Anodonta (Lastena) ohiensis-horda Gould, 1855 = Utterbackia imbecillis
+ Anodon hordeum Sowerby, 1867 Anodonta (Lastena) ohiensis-horda Gould, 1855 = Pyganodon fragilis Anodonta (Pyganodon) cataracta Say, 1817 = Pyganodon cataracta
+ Anodonta (s.s.) atra Rafinesque, 1820
+ Anodonta fluviatilis Bosc, 1801
+ Anodonta teres Conrad, 1834
+ Anodonta virgulata Lea, 1857
+ Anodonta williamsii Lea, 1862
+ Anodonta tryonii Lea, 1862
+ Anodonta dolearis Lea, 1863
+ Anodonta doliaris Lea, 1863 Anodonta (Pyganodon) cataracta-gibbosa Say, 1825 = Pyganodon cataracta
+ Anodonta dariensis Lea, 1858 Anodonta (Pyganodon) cataracta-gibbosa Say, 1825 = Pyganodon gibbosa Anodonta (Pyganodon) cataracta-hallenbeckii Lea, 1858 = Pyganodon grandis
+ Anodonta gesnerii Lea, 1858 Anodonta (Pyganodon) cataracta-hallenbeckii Lea, 1858 = Pseudodontoideus connasaugaensis Anodonta (Pyganodon) grandis Say, 1829 = Pyganodon grandis
+ Anodonta inflata Rafinesque, 1831
+ Anodonta gigantea Lea, 1838
+ Anodonta corpulenta Cooper, 1834
+ Anodonta stewartiana Lea, 1834
+ Anodonta virens Lea, 1852
+ Anodonta linnaeana Lea, 1852
+ Anodonta opaca Lea, 1852 Anodonta (Pyganodon) grandis-bealei Lea, 1863 = Pyganodon grandis Anodonta (Pyganodon) grandis-benedictensis (Lea, 1834) = Pyganodon grandis
+ Margaron (Anodonta) benedictii Lea, 1870 Anodonta (Pyganodon) grandis-dakota Frierson, 1910 = Pyganodon grandis Anodonta (Pyganodon) grandis-dakotana Utterback, 1915 = Pyganodon grandis Anodonta (Pyganodon) grandis-globosa Lea, 1841 = Pyganodon globosa
+ Anodon nopalatensis Sowerby, 1867 Anodonta (Pyganodon) grandis-grijalvae Morelet, 1884 = Pyganodon globosa Anodonta (Pyganodon) grandis-lugubris Say, 1829 = Anodonta californiensis
+ Anodonta plana Lea, 1834
+ Anodonta declivis Conrad, 1834
+ Anodonta decora Lea, 1838
+ Anodonta ovata Lea, 1838
+ Anodonta footiana Lea, 1840
+ Anodonta maryattana Lea, 1840
+ Anodonta harpethensis Lea, 1840
+ Anodonta leonensis Lea, 1862
+ Anodonta texasensis Lea, 1859
+ Anodonta danielsii Lea, 1858
+ Anodonta lewisii Lea, 1857
+ Anodon subangulata J.G. Anthony, 1865
+ Anodon subgibbosa J.G. Anthony, 1866
+ Anodon subinflata J.G. Anthony, 1865
+ Anodon imbricata J.G. Anthony, 1865
3 more... Anodonta (Pyganodon) grandis-lugubris Say, 1829 = Pyganodon grandis Anodonta (Pyganodon) grandis-pepiniana Lea, 1838 = Pyganodon grandis
+ Anodonta dallasiana Lea, 1863
+ Anodonta kennicottii Lea, 1861
+ Anodon opalina J.G. Anthony, 1865
+ Anodonta houghtonensis DeCamp, 1881 Anodonta (Pyganodon) grandis-tabascensis Morelet, 1884 = Pyganodon globosa
+ Anodonta tabascoensis Simpson, 1900 Anodonta (Pyganodon) implicata Say, 1829 = Pyganodon cataracta
+ Anodonta newtonensis Lea, 1838
+ Anodonta housatonica Gould, 1848
+ Anodonta excurvata De Kay, 1843 Anodonta (Pyganodon) implicata Say, 1829 = Utterbackiana implicata Anodonta (s.s.) beringiana Middendorff, 1851 = Beringiana beringiana
+ Anodonta youkanensis Lea, 1867
+ Anodonta youconensis Lea, 1867 Anodonta (s.s.) californiensis Lea, 1852 = Anodonta californiensis Anodonta (s.s.) impura Say, 1829 = Brachyanodon impura
+ Unio (Anodonta) coarctata Anton, 1839
+ Anodonta chalcoensis Crosse & Fischer, 1893
+ Anodonta chapalensis Crosse & Fischer, 1893
+ Anodonta exilior Lea, 1871
+ Anodon glabrus Sowerby, 1870
+ Anodonta viridana Clessin, 1876
+ Glabaris glabrus Frierson, 1927 Anodonta (s.s.) kennerlyi Lea, 1860 = Anodonta kennerlyi Anodonta (s.s.) lurulenta Morelet, 1849 = Anodontites lurulenta Anodonta (s.s.) marginata Say, 1817 = Pyganodon fragilis
+ Anodonta fragilis Lamarck, 1819
+ Anodonta lacustris Lea, 1857
+ Anodon flava J.G. Anthony, 1865
+ Anodon glandulosa J.G. Anthony, 1865
+ Anodon pallida J.G. Anthony, 1865
+ Anodon irisans J.G. Anthony, 1865
+ Anodonta subcarinata Currier, 1867
+ Anodon pholadiformis Sowerby, 1870
+ Anodon exilis Sowerby, 1870
+ Anodon subcylindracea Sowerby, 1867 Anodonta (s.s.) marginata Say, 1817 = Pyganodon lacustris Anodonta (s.s.) marginata Say, 1817 = Pyganodon cataracta Anodonta (s.s.) oregonensis Lea, 1838 = Anodonta oregonensis
+ Anodon cognata Gould, 1850 Anodonta (s.s.) richardsoni Martens, 1900 = Brachyanodon impura Anodonta (s.s.) wahlamatensis Lea, 1838 = Anodonta nuttalliana
+ Anodonta wahlametensis Simpson, 1900
+ Anodonta nuttalliana Lea, 1838
+ Anodon rostratus Sowerby, 1867
+ Anodonta laosensis Fischer, 1891
+ Anodonta rotundovata Trask, 1854
+ Anodonta triangularis Trask, 1854
+ Anodonta nuttalliana var. idahoensis Hemphill, 1891 Anodonta (Utterbackiana) suborbiculata Say, 1831 = Utterbackiana suborbiculata Anodontites cylindracea (Lea, 1838)
+ Anodon bambousearum Morelet, 1851
+ Anodonta strebelii Lea, 1868 Anodontites depexa (von Martens, 1900) = Anodontites tehuantepecensis Anodontites jaliscoensis (Pilsbry, 1920) Anodontites montezuma (Lea, 1841)
+ Anodonta inaequivalva Lea, 1868
+ Anodonta lenticularis Lea, 1868
+ Anodon montezianus Sowerby, 1870 Anodontites tehuantepecensis (Crosse & Fischer, 1894) Anodontites tortilis (Lea, 1852)
+ Anodonta luteola Lea, 1858
+ Anodon schomburgianus Sowerby, 1870 Anodontites tortilis (Lea, 1852) = Anodontites schomburgiana Arcidens confragosa (Say, 1829) = Arcidens confragosus Arkansia wheeleri Ortmann & Walker, 1912 = Arcidens wheeleri Arotonaias cyrenoides (Philippi, 1847)
+ Unio sagrinatus Sowerby, 1868
+ Unio newcombianus Lea, 1856
+ Unio gabbianus Martens, 1900 Arotonaias gabbiana (Lea, 1868)
+ Unio nicaraguensis Lea, 1868 Arotonaias imbricata (Mörch, 1861) = Arotonaias encarpa
+ Unio encarpus Lea, 1868 Canthyria collina (Conrad, 1836) = Parvaspina collina Canthyria spinosa (Lea, 1838) = Elliptio spinosa Carunculina glans (Lea, 1831) = Toxolasma lividum
+ Toxolasma lividus Rafinesque, 1831
+ Unio maestus Lea, 1842
+ Unio moestus Lea, 1841 Carunculina glans-corvuncula (Lea, 1868) = Toxolasma corvunculus
+ Unio pullus Conrad, 1838 Carunculina glans-corvuncula (Lea, 1868) = Toxolasma pullus Carunculina glans-cylindrella (Lea, 1868) = Toxolasma cylindrellus Carunculina minor (Lea, 1843) = Toxolasma paulum Carunculina parva (Barnes, 1823) = Toxolasma parvum Carunculina parva-compressa (Simpson, 1900) = Toxolasma texasiense Carunculina parva-haleiana (Lea, 1843) = Leaunio lienosus Carunculina parva-mearnsi (Simpson, 1900) = Toxolasma texasiense Carunculina parva-texasensis (Lea, 1857) = Toxolasma texasiense
+ Unio bairdianus Lea, 1857
+ Unio bealei Lea, 1862 Carunculina paula (Lea, 1840) = Toxolasma paulum
+ Unio germanus Lea, 1861
+ Unio cromwellii Lea, 1865
+ Unio marginis Lea, 1865 Cumberlandia monodonta (Say, 1829)
+ Unio soleniformis Lea, 1831 Cyprogenia aberti (Conrad, 1850)
+ Unio lamarckianus Lea, 1852
+ Unio popenoi Call, 1885 Cyprogenia stegaria (Rafinesque, 1820)
+ Unio verrucosus albus Hildreth, 1828
+ Unio irroratus Lea, 1828 Cyprogenia stegaria-pusilla Simpson, 1900 = Cyprogenia stegaria Decurambis marginata (Say, 1818) = Alasmidonta varicosa
+ Decurambis scriptum Rafinesque, 1831
+ Alasmodon corrugata De Kay, 1843
+ Alasmodonta truncata Lea, 1836
+ Alasmidonta (Decurambis) marginata susquehannae Ortmann, 1919 Decurambis marginata (Say, 1818) = Alasmidonta marginata Decurambis marginata-atropurpureum Rafinesque, 1831 = Alasmidonta raveneliana
+ Margaritana raveneliana Lea, 1834
+ Unio swananoensis Hanley, 1843 Decurambis marginata-atropurpureum Rafinesque, 1831 = Alasmidonta atropurpurea Decurambis marginata-varicosa (Lamarck, 1819) = Alasmidonta varicosa
+ Alasmodon marginata De Kay, 1843 Diplasma vitrea Rafinesque
+ Unio olivarius Lea, 1831 Diplasma vitrea Rafinesque = Indonaia olivaria Dromus dromas (Lea, 1834) Dromus dromas-caperatus (Lea, 1845) = Dromus dromas
+ Unio abacoides Haldeman, 1846 Dysnomia (Capsaeformis) capsaeformis (Lea, 1834) = Epioblasma capsaeformis Dysnomia (Capsaeformis) florentina (Lea, 1857) = Epioblasma florentina
+ Unio sacculus Reeve, 1864
+ Unio saccatus Küster, 1862 Dysnomia (Capsaeformis) florentina-curtisi (Utterback, 1915) = Epioblasma curtisii Dysnomia (Capsaeformis) lefevrei (Utterback, 1915) = Epioblasma turgidula Dysnomia (Capsaeformis) turgidula (Lea, 1858) = Epioblasma turgidula
+ Unio deviatus Reeve, 1864 Dysnomia (Capsaeformis) walkeri (Wilson & Clark, 1914) = Epioblasma walkeri Dysnomia (Penita) arcaeformis (Lea, 1831) = Epioblasma arcaeformis
+ Unio nexus Say, 1831
+ Truncilla metaplata Rafinesque, 1831 Dysnomia (Penita) arcaeformis (Lea, 1831) = Truncilla truncata Dysnomia (Penita) brevidens (Lea, 1831) = Epioblasma brevidens
+ Unio interruptus Conrad, 1834 Dysnomia (Penita) haysiana (Lea, 1834) = Epioblasma haysiana
+ Unio sowerbianus Lea, 1834 Dysnomia (Penita) lenior (Lea, 1840) = Epioblasma lenior
+ Unio lenis Lea, 1840 Dysnomia (Penita) metastriatus (Conrad, 1838) = Epioblasma metastriata
+ Unio compactus Lea, 1859 Dysnomia (Penita) modicella (Lea, 1859) = Epioblasma othcaloogensis Dysnomia (Penita) othcaloogensis (Lea, 1857) = Epioblasma othcaloogensis Dysnomia (Penita) penita (Conrad, 1834) = Epioblasma penita Dysnomia (Pilea) personata (Say, 1829) = Epioblasma personata
+ Unio pileus Lea, 1831
+ Unio capillaris Lea, 1834 Dysnomia (Pilea) sulcata (Lea, 1829) = Epioblasma perobliqua
+ Unio ridibundus Say, 1829
+ Unio gibbosus var. perobliquus Conrad, 1836
+ Unio obliquatus Say, 1834 Dysnomia (Pilea) sulcata (Lea, 1829) = Epioblasma obliquata Dysnomia (Pilea) sulcata-pectita (Conrad, 1853) = Epioblasma rangiana
+ Truncilla (Scalenaria) sulcata var. delicata Simpson, 1900 Dysnomia (Pilea) sulcata-pectita (Conrad, 1853) = Epioblasma obliquata Dysnomia (s.s.) flexuosa (Rafinesque, 1820)
+ Unio cornutus of Authors, unknown year
+ Unio foliatus Hildreth, 1828 Dysnomia (s.s.) flexuosa (Rafinesque, 1820) = Epioblasma flexuosa Dysnomia (s.s.) lewisi (Walker, 1910) = Epioblasma lewisii Dysnomia (s.s.) stewardsoni (Lea, 1852) = Epioblasma stewardsonii Dysnomia (Torulosa) biemarginata (Lea, 1857) = Epioblasma biemarginata Dysnomia (Torulosa) propinqua (Lea, 1857) = Epioblasma propinqua Dysnomia (Torulosa) rangiana (Lea, 1838) = Epioblasma rangiana Dysnomia (Torulosa) sampsonii (Lea, 1862) = Epioblasma sampsonii Dysnomia (Torulosa) torulosa (Rafinesque, 1820)
+ Amblema gibbosa Rafinesque, 1820
+ Unio cornutus of Authors, unknown year
+ Unio perplexus Lea, 1831
+ Unio obliquus Potiez & Michaud, 1844 Dysnomia (Torulosa) torulosa (Rafinesque, 1820) = Epioblasma torulosa Dysnomia (Torulosa) torulosa-cincinnatiensis (Lea, 1840) = Epioblasma cincinnatiensis Dysnomia (Torulosa) torulosa-gubernaculum (Reeve, 1856) = Epioblasma gubernaculum Dysnomia (Truncillopsis) triquetra (Rafinesque, 1820) = Epioblasma triquetra
+ Unio triangularis Barnes, 1823
+ Unio formosus Lea, 1831
+ Unio cuneatus Swainson, 1823 Elliptio (Barynaias) averyi (Lea, 1859) = Nephronaias caldwellii
+ Unio caldwellii Lea, 1858 Elliptio (Barynaias) opacatus (Crosse & Fischer, 1893) = Sphenonaias opacata Elliptio (Barynaias) pigerrimus (Crosse & Fischer, 1893) = Psoronaias crocodilorum Elliptio (Barynaias) sallei (Crosse & Fischer, 1893) = Nephronaias sallei Elliptio (Barynaias) sallei-grossus (von Martens, 1900) = Pachynaias spheniopsis Elliptio (Barynaias) tamaulipasensis (Conrad, 1855) [sic]
+ Unio taumilapanus Conrad, 1855
+ Unio mitchelli Dall, 1895
+ Unio iheringi B.H. Wright, 1898 Elliptio (Barynaias) tamaulipasensis (Conrad, 1855) [sic] = Fusconaia mitchelli Elliptio (Barynaias) tamaulipasensis (Conrad, 1855) [sic] = Fusconaia iheringi Elliptio (Barynaias) tamaulipasensis-elongatus (Simpson, 1914) = Fusconaia mitchelli Elliptio (Elliptoideus) sloatianus (Lea, 1840) = Elliptoideus sloatianus
+ Unio atromarginatus Lea, 1840
+ Unio aratus Conrad, 1849
+ Unio plectophorus Conrad, 1849
+ Margaron (Unio) plectoforus Lea, 1852 Elliptio (Eurynaia [sic]) dilatatus (Rafinesque, 1820) = Eurynia dilatata
+ Unio nasuta Lamarck, 1819
+ Unio gibbosus Barnes, 1823
+ Obliquaria bicolor Rafinesque, 1831
+ Obliquaria violacea Rafinesque, 1831
+ Unio arctatus Ferussac, 1835
+ Unio arctior Lea, 1838
+ Unio stonensis Lea, 1840
+ Unio lazarus Sowerby, 1868 Elliptio (Eurynaia [sic]) dilatatus (Rafinesque, 1820) = Elliptio arca Elliptio (Eurynaia [sic]) dilatatus-arcus (Conrad, 1834) = Elliptio arca Elliptio (Eurynaia [sic]) dilatatus-armathwaitensis (Wright, B.H., 1898) = Eurynia dilatata Elliptio (Eurynaia [sic]) dilatatus-delicatus (Simpson, 1900) = Eurynia dilatata Elliptio (Eurynaia [sic]) dilatatus-fulvus (Rafinesque, 1831) = Eurynia dilatata
+ Unio luridus Lea, 1852
+ Unio rufus Lea, 1857
+ Unio subgibbosus Lea, 1857 Elliptio (Eurynaia [sic]) dilatatus-fulvus (Rafinesque, 1831) = Elliptio arca Elliptio (Martensnaias) rubicundus (von Martens, 1900) = Psoronaias rubicunda Elliptio (Micronaias) aratus (Lea, 1843) = Micronaias arata Elliptio (Micronaias) fallaciosus (Simpson, 1914) = Micronaias fallaciosa Elliptio (Micronaias) granadensis (Lea, 1868) = Micronaias granadensis
+ Unio aratus Martens, 1900 Elliptio (Nephritica) haricotti Frierson, 1927 = Nephritica haricotti Elliptio (Nephritica) poeyanus (Lea, 1857) = Nephritica poeyana Elliptio (Nephronaias) aeruginosus (Morelet, 1849) = Nephronaias macnielii
+ Unio macnielii Lea, 1869 Elliptio (Nephronaias) aeruginosus (Morelet, 1849) = Nephronaias aeruginosa Elliptio (Nephronaias) calamitarum (Morelet, 1849) = Nephronaias calamitarum Elliptio (Nephronaias) calamitarum-prolongus [sic] (Crosse & Fischer, 1893) = Nephronaias calamitarum Elliptio (Nephronaias) championi (von Martens, 1900) = Nephronaias goascoranensis Elliptio (Nephronaias) copanensis (von Martens, 1900) = Nephronaias copanensis Elliptio (Nephronaias) dysoni (Lea, 1859) = Nephronaias dysonii
+ Unio calamitarum var. G arcuans Fischer & Crosse, 1894 Elliptio (Nephronaias) dysoni (Lea, 1859) = Nephronaias calamitarum Elliptio (Nephronaias) goascoranensis (Lea, 1858) = Nephronaias goascoranensis Elliptio (Nephronaias) guatemalensis [sic] (Martens, 1900) = Nephronaias goascoranensis
+ Unio goascoranensis Martens, 1900 Elliptio (Nephronaias) hjalmarsoni (Dunker, 1858) = Nephronaias hjalmarsoni Elliptio (Nephronaias) melleus (Lea, 1859) Elliptio (Nephronaias) oregonensis (Lea, 1852)
+ Unio (Elliptio) radiatulus Martens, 1900 Elliptio (Nephronaias) oregonensis (Lea, 1852) = Nephronaias goascoranensis Elliptio (Nephronaias) persulcatus (Lea, 1859) = Nephronaias calamitarum Elliptio (Nephronaias) plicatulus (Charpentier in Küster, 1856) = Nephronaias aztecorum Elliptio (Nephronaias) ravistellus (Morelet, 1849) = Nephronaias ravistella Elliptio (Nephronaias) ravistellus-vellicatus (Sowerby, 1865) = Nephronaias ravistella Elliptio (Nephronaias) ravistellus-yzabalensis (Crosse & Fischer, 1892) = Nephronaias yzabalensis Elliptio (Nephronaias) rowellii (Lea, 1859) = Nephronaias rowellii Elliptio (Nephronaias) rugolosus [sic] (Charpentier in Küster, 1856) Elliptio (Nephronaias) sajensis (Frierson, 1927) = Nephronaias dysonii Elliptio (Nephronaias) scamnatus (Morelet, 1849) = Nephronaias scamnata
+ Unio (Simonaias) proclinatus Martens, 1900
+ Unio gundlachi Sowerby, 1866 Elliptio (Nephronaias) sphenorhynchus (Crosse & Fischer, 1893)
+ Unio (Nephronaias) ortmanni Frierson, 1913 Elliptio (Nephronaias) sphenorhynchus (Crosse & Fischer, 1893) = Nephronaias ortmanni Elliptio (Nephronaias) subventralis (von Martens, 1900) Elliptio (Nephronaias) tabascoensis (Charpentier in Küster, 1856) Elliptio (Pachynaias) rugososulcatus (Lea, 1866) = Pachynaias spheniopsis Elliptio (Pachynaias) spheniopsis (Crosse & Fischer, 1893) [sic] = Pachynaias spheniopsis Elliptio (Popenaias) metallicus (Say, 1831) = Popenaias metallica
+ Unio cuprinus Lea, 1831
+ Unio aereus Reeve, 1865 Elliptio (Popenaias) metallicus-ganinus (Pilsbry, 1909) = Popenaias semirasa Elliptio (Popenaias) popei (Lea, 1857) = Nephronaias ravistella
+ Unio veraepacis Tristram, 1863 Elliptio (Popenaias) popei (Lea, 1857) = Popenaias popeii Elliptio (Reticulatus) reticulatus (Simpson, 1900) = Arotonaias reticulata Elliptio (s.s.) aheneus (Lea, 1841) = Elliptio ahenea Elliptio (s.s.) aheneus-oscari (Wright, B.H., 1892) = Elliptio jayensis Elliptio (s.s.) angustatus (Lea, 1831) = Elliptio angustata
+ Unio extensus Lea, 1857 Elliptio (s.s.) angustatus (Lea, 1831) = Elliptio pullata Elliptio (s.s.) anthonyi (Lea, 1861) = Elliptio monroensis Elliptio (s.s.) aquilus (Lea, 1857) = Elliptio pullata Elliptio (s.s.) arctatus (Conrad, 1834) = Elliptio arctata
+ Unio viridans Lea, 1859
+ Unio mercerii Lea, 1862
+ Unio lazarus Lea, 1852
+ Unio strigosus Lea, 1840 Elliptio (s.s.) arctatus (Conrad, 1834) = Elliptio pullata Elliptio (s.s.) buckleyi (Lea, 1841) = Elliptio jayensis Elliptio (s.s.) buddianus (Lea, 1843) = Elliptio jayensis
+ Unio websterii B.H. Wright, 1888
+ Unio buckleyi Simpson, 1900 Elliptio (s.s.) buddianus (Lea, 1843) = Elliptio monroensis Elliptio (s.s.) buddianus (Lea, 1843) = Elliptio dariensis Elliptio (s.s.) buddianus-dalli (Wright, B.H., 1888) = Elliptio jayensis Elliptio (s.s.) buddianus-hartwrightii (Wright, B.H., 1896) = Elliptio monroensis Elliptio (s.s.) buddianus-monroensis (Lea, 1843) = Elliptio monroensis Elliptio (s.s.) buddianus-orcuttii (Wright, S.H., 1888) = Elliptio jayensis Elliptio (s.s.) buddianus-pinei (Wright, B.H., 1897) = Elliptio jayensis Elliptio (s.s.) buxtoni (Wright, B.H., 1897) = Elliptio jayensis Elliptio (s.s.) chipolaensis (Walker, 1905) = Elliptio chipolaensis Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio congaraea
+ Unio decumbens Lea, 1861
+ Unio violaceus Spengler, 1793
+ Unio purpureus Say, 1817
+ Unio abbevillensis Lea, 1857
+ Unio aberrans Lea, 1863
+ Unio ablatus Lea, 1863
+ Unio amplus Lea, 1872
+ Unio baldwinensis Lea, 1859
+ Unio basalis Lea, 1872
+ Unio beaverensis Lea, 1868
+ Unio carinifera Lamarck, 1819
+ Unio chathamensis Lea, 1863
+ Unio cirratus Lea, 1874
+ Unio coarctata Lamarck, 1819
+ Unio corneus Lea, 1874
61 more... Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio roanokensis Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio hopetonensis Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio fumata Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio icterina Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio pullata Elliptio (s.s.) complanatus (Dillwyn, 1817) = Elliptio complanata Elliptio (s.s.) complanatus-catawbensis (Lea, 1862) = Elliptio lanceolata
+ Unio wheatleyi Lea, 1857
+ Unio rostrum Lea, 1861
+ Unio oblongus Lea, 1872
+ Unio subsquamosus Lea, 1872
+ Unio sagittiformis Lea, 1852
+ Unio curvatus Lea, 1872 Elliptio (s.s.) complanatus-catawbensis (Lea, 1862) = Elliptio complanata Elliptio (s.s.) complanatus-cuvierianus (Lea, 1852) = Elliptio complanata Elliptio (s.s.) complanatus-icterinus (Conrad, 1834) = Elliptio icterina
+ Unio curatus Lea, 1863
+ Unio cuspidatus Lea, 1872
+ Unio datus Lea, 1868 Elliptio (s.s.) complanatus-icterinus (Conrad, 1834) = Elliptio complanata Elliptio (s.s.) complanatus-jejunus (Lea, 1838) = Elliptio complanata
+ Unio percoarctatus Lea, 1857 Elliptio (s.s.) complanatus-livingstonensis (Lea, 1863) = Elliptio icterina Elliptio (s.s.) complanatus-northamptonensis (Lea, 1862) = Elliptio complanata Elliptio (s.s.) complanatus-ocmulgeensis (Lea, 1861) = Elliptio icterina Elliptio (s.s.) complanatus-plantii (Lea, 1857) = Elliptio fumata Elliptio (s.s.) complanatus-pullatus (Lea, 1858) = Elliptio icterina
+ Unio hastatus Lea, 1874 Elliptio (s.s.) complanatus-pullatus (Lea, 1858) = Elliptio pullata Elliptio (s.s.) complanatus-subinflatus (Conrad, 1835) = Elliptio roanokensis
+ Unio roanokensis Lea, 1838
+ Unio hopetonensis Lea, 1838 Elliptio (s.s.) complanatus-subinflatus (Conrad, 1835) = Elliptio hopetonensis Elliptio (s.s.) complanatus-subinflatus (Conrad, 1835) = Elliptio complanata Elliptio (s.s.) complanatus-tuomeyi (Lea, 1852) = Elliptio fumata
+ Unio barrattii Lea, 1852
+ Unio hallenbeckii Lea, 1859
+ Unio verutus Lea, 1859 Elliptio (s.s.) complanatus-tuomeyi (Lea, 1852) = Elliptio icterina Elliptio (s.s.) complanatus-tuomeyi (Lea, 1852) = Elliptio pullata Elliptio (s.s.) congaraeus (Lea, 1831) = Elliptio congaraea
+ Unio fulvus Lea, 1834
+ Unio rufusculus Lea, 1852
+ Unio gibbesianus Lea, 1852 Elliptio (s.s.) coruscus (Gould, 1856) = Elliptio jayensis Elliptio (s.s.) coruscus-fryanus (Wright, B.H., 1888) = Elliptio jayensis
+ Unio diazensis S.H. Wright, 1897 Elliptio (s.s.) coruscus-fryanus (Wright, B.H., 1888) = Elliptio occulta Elliptio (s.s.) cunninghami (Wright, B.H., 1883) = Elliptio jayensis Elliptio (s.s.) cylindraceus Frierson, 1927 = Elliptio icterina
+ Unio lugubris Lea, 1838 Elliptio (s.s.) dariensis (Lea, 1842) = Elliptio dariensis Elliptio (s.s.) dorei (Wright, B.H., 1888) = Elliptio jayensis Elliptio (s.s.) dorsatus (Lea, 1868) = Elliptio congaraea Elliptio (s.s.) downiei (Lea, 1858) = Elliptio downiei Elliptio (s.s.) duttonianus (Lea, 1841) = Elliptio lanceolata Elliptio (s.s.) emmonsii (Lea, 1857) = Elliptio lanceolata
+ Unio subcylindraceus Lea, 1874 Elliptio (s.s.) emmonsii (Lea, 1857) = Elliptio angustata Elliptio (s.s.) errans (Lea, 1856) = Elliptio icterina
+ Unio palliatus Ravenel, 1875
+ Unio singularis B.H. Wright, 1899
+ Unio contractus Lea, 1857 Elliptio (s.s.) errans (Lea, 1856) = Elliptio pullata Elliptio (s.s.) errans (Lea, 1856) = Elliptio complanata Elliptio (s.s.) ferrissii (Marsh, 1891) = Elliptio jayensis Elliptio (s.s.) folliculatus (Lea, 1838) = Elliptio folliculata
+ Unio attenuatus Lea, 1872
+ Unio exacutus Lea, 1872
+ Unio rostellum Lea, 1872 Elliptio (s.s.) forbesianus (Lea, 1853) = Elliptio congaraea
+ Unio moussonianus Lea, 1852
+ Unio congaraeus Conrad, 1836 Elliptio (s.s.) fraternus (Lea, 1852) = Elliptio fraterna Elliptio (s.s.) fuscatus (Lea, 1841) = Elliptio occulta Elliptio (s.s.) geddingsianus (Lea, 1840) = Elliptio icterina
+ Unio whiteianus Lea, 1852
+ Unio protensus Lea, 1865
+ Unio radiolus Lea, 1871
+ Unio limatulus Conrad, 1849 Elliptio (s.s.) geddingsianus (Lea, 1840) = Elliptio complanata Elliptio (s.s.) geminus (Lea, 1856) = Elliptio downiei
+ Unio satillaensis Lea, 1858 Elliptio (s.s.) geminus (Lea, 1856) = Elliptio complanata Elliptio (s.s.) hazelhurstianus [sic] (Lea, 1858) = Elliptio lanceolata Elliptio (s.s.) hepaticus (Lea, 1859) = Elliptio icterina Elliptio (s.s.) hinkleyi (Wright, B.H., 1888) = Elliptio jayensis Elliptio (s.s.) insulsus (Lea, 1857) = Elliptio cistellaeformis
+ Unio cistellaeformis Lea, 1863 Elliptio (s.s.) insulsus (Lea, 1857) = Elliptio complanata Elliptio (s.s.) jayensis (Lea, 1838) = Elliptio jayensis
+ Margaron (Unio) jayanus Lea, 1870
+ Unio prasinatus Conrad, 1866
+ Unio simpsoni B.H. Wright, 1888 Elliptio (s.s.) jayensis-tryoni (Wright, B.H., 1888) = Elliptio jayensis Elliptio (s.s.) lanceolatus (Lea, 1828) = Elliptio lanceolata Elliptio (s.s.) lecontianus (Lea, 1838) = Elliptio congaraea
+ Unio contrarius Conrad, 1849 Elliptio (s.s.) lecontianus (Lea, 1838) = Lampsilis straminea Elliptio (s.s.) lehmani (Wright, S.H., 1897) = Elliptio occulta
+ Unio burtchianus S.H. Wright, 1897
+ Unio fuscatus Reeve, 1865 Elliptio (s.s.) lehmani (Wright, S.H., 1897) = Elliptio icterina Elliptio (s.s.) lucidus (Lea, 1863) = Elliptio icterina Elliptio (s.s.) marshii (Wright, B.H., 1888) = Elliptio jayensis Elliptio (s.s.) masoni (Conrad, 1834) = Fusconaia masoni
+ Unio merus Lea, 1852
+ Unio castus Simpson, 1900 Elliptio (s.s.) micans (Lea, 1857) = Elliptio icterina
+ Unio perlucens Lea, 1863 Elliptio (s.s.) micans (Lea, 1857) = Elliptio complanata Elliptio (s.s.) naviculoides (Lea, 1857) = Elliptio lanceolata Elliptio (s.s.) nigellus (Lea, 1853) = Elliptio nigella
+ Unio denigratus Lea, 1857
+ Unio purpurellus Lea, 1857 Elliptio (s.s.) nigellus (Lea, 1853) = Elliptio purpurella Elliptio (s.s.) niger (Rafinesque, 1820) = Elliptio crassidens
+ Unio crassidens Lamarck, 1819
+ Unio cuneatus Barnes, 1823
+ Unio discus Sowerby, 1868
+ Unio (Elliptio) nigra var. maculata Rafinesque, 1820 Elliptio (s.s.) niger-danielsi (Wright, B.H., 1899) = Elliptio crassidens Elliptio (s.s.) niger-incrassatus (Lea, 1840) = Elliptio crassidens Elliptio (s.s.) nolani (Wright, B.H., 1888) = Elliptio jayensis Elliptio (s.s.) obnubilus (Lea, 1857) = Elliptio icterina
+ Unio opacus Lea, 1857
+ Unio aequatus Lea, 1857 Elliptio (s.s.) occultus (Lea, 1841) = Elliptio occulta Elliptio (s.s.) perstriatus (Lea, 1852) = Elliptio arctata
+ Unio gracilentus Lea, 1857
+ Unio perlatus Lea, 1863 Elliptio (s.s.) polymorphus (Wright, B.H., 1899) = Elliptio monroensis Elliptio (s.s.) productus (Conrad, 1836) = Elliptio fisheriana
+ Unio fisherianus Lea, 1838
+ Unio nasutus Conrad, 1838
+ Unio barrotti Küster, 1861
+ Unio nasutulus Lea, 1866 Elliptio (s.s.) productus (Conrad, 1836) = Elliptio producta Elliptio (s.s.) pusillus (Lea, 1840) = Elliptio congaraea
+ Unio vestitus Lea, 1861
+ Unio buxeus Lea, 1852
+ Unio corvus Lea, 1859 Elliptio (s.s.) pygmaeus (Lea, 1852) = Platynaias subviridis
+ Unio pygamaeus Simpson, 1914 Elliptio (s.s.) raveneli (Conrad, 1834) = Elliptio icterina
+ Unio confertus Lea, 1834
+ Margarita (Unio) watereensis Lea, 1836
+ Unio santeensis Lea, 1871 Elliptio (s.s.) raveneli (Conrad, 1834) = Elliptio complanata Elliptio (s.s.) rostraeformis (Lea, 1856) = Elliptio lanceolata
+ Unio maconensis Lea, 1857 Elliptio (s.s.) rostraeformis (Lea, 1856) = Elliptio pullata Elliptio (s.s.) shepardianus (Lea, 1834) = Elliptio shepardiana Elliptio (s.s.) similis (Lea, 1857) = Elliptio icterina Elliptio (s.s.) spadiceus (Lea, 1857) = Elliptio complanata Elliptio (s.s.) spissus (Lea, 1859) = Elliptio downiei Elliptio (s.s.) subluridus (Simpson, 1900) = Elliptio jayensis Elliptio (s.s.) subniger (Lea, 1857) = Elliptio fumata
+ Unio burkensis Lea, 1859 Elliptio (s.s.) subniger (Lea, 1857) = Elliptio complanata Elliptio (s.s.) suttoni (Wright, B.H., 1897) = Elliptio jayensis Elliptio (s.s.) tenuisculus (Frierson, 1911) = Elliptio jayensis Elliptio (s.s.) tortivus (Lea, 1840) = Elliptio arctata
+ Unio tetricus Lea, 1857 Elliptio (s.s.) tortivus (Lea, 1840) = Elliptio pullata Elliptio (s.s.) viridicatus (Lea, 1857) = Elliptio icterina Elliptio (s.s.) viridulus (Lea, 1863) = Elliptio lanceolata Elliptio (s.s.) waccamawensis (Lea, 1863) = Elliptio congaraea Elliptio (s.s.) waltoni (Wright, B.H., 1888) = Elliptio ahenea Elliptio (Sphenonaias) callosus (Lea, 1841) = Ortmanniana ligamentina
+ Unio tehuantepecensis Crosse & Fischer, 1894 Elliptio (Sphenonaias) callosus (Lea, 1841) = Nephronaias tehuantepecensis Elliptio (Sphenonaias) coloratus (Charpentier, 1856) Elliptio (Sphenonaias) flucki (Bartsch, 1906) = Nephronaias flucki Elliptio (Sphenonaias) liebmanni (Philippi, 1847) = Sphenonaias liebmanni Elliptio (Sphenonaias) liebmanni-cuatotolapamensis Baker, H.B., 1922 = Sphenonaias liebmanni Elliptio (Sphenonaias) mexicanus (Philippi, 1847) Elliptio (Sphenonaias) microdon (von Martens, 1887) = Mesonaias explicata Elliptio (Uniomerus) bissellianus [sic] (Lea, 1867) = Uniomerus carolinianus Elliptio (Uniomerus) declivis (Say, 1831) = Uniomerus declivis
+ Unio geometricus Lea, 1834 Elliptio (Uniomerus) dispalans (Wright, B.H., 1899) = Elliptio occulta Elliptio (Uniomerus) obesus (Lea, 1831) = Uniomerus tetralasmus
+ Unio ineptus Lea, 1852
+ Unio hebes Lea, 1852
+ Unio rivularis Conrad, 1853
+ Unio rivicolus Conrad, 1868
+ Unio cicur Lea, 1861
+ Unio squalidus Lea, 1863
+ Unio jewettii Lea, 1867
+ Unio pawensis Lea, 1868
+ Unio caroliniana Bosc, 1801 Elliptio (Uniomerus) obesus (Lea, 1831) = Uniomerus carolinianus Elliptio (Uniomerus) obesus-blandingianus (Lea, 1834) = Uniomerus carolinianus
+ Unio paludicolor Conrad, 1853 Elliptio (Uniomerus) obesus-paludicolus (Lea, 1834) = Uniomerus carolinianus Elliptio (Uniomerus) tetralasmus (Say, 1831) = Uniomerus tetralasmus
+ Unio excultus Conrad, 1838
+ Unio parallelus Conrad, 1841
+ Unio porrectus Conrad, 1854
+ Unio subcroceus Conrad, 1854
+ Unio symmetricus Lea, 1845
+ Unio jamesianus Lea, 1857
+ Unio declivis Conrad, 1836 Elliptio (Uniomerus) tetralasmus (Say, 1831) = Uniomerus declivis Elliptio (Uniomerus) tetralasmus-camptodon (Say, 1832) = Uniomerus tetralasmus Elliptio (Uniomerus) tetralasmus-columbensis (Lea, 1857) = Uniomerus columbensis Elliptio (Uniomerus) tetralasmus-manubius (Gould, 1855) = Uniomerus tetralasmus Elliptio (Uniomerus) tetralasmus-sayi (Ward, 1839) = Uniomerus tetralasmus
+ Unio sayanus Conrad, 1838
+ Unio electrinus Reeve, 1865 Glebula suborbiculata (Lamarck, 1819) = Glebula rotundata
+ Unio rotundata Lamarck, 1819
+ Unio glebulus Say, 1831
+ Obliquaria (Plagiola) decorticata Rafinesque, 1820
+ Unio subglobosus Lea, 1834
+ Unio grandensis Conrad, 1855 Glebula suborbiculata (Lamarck, 1819) = Cyrtonaias berlandierii Gonidea angulata (Lea, 1838)
+ Anodon feminalis Gould, 1850
+ Anodonta randalli Trask, 1854
+ Anodon biangulata Sowerby, 1869 Gonidea angulata-haroldiana Dall, 1908 = Gonidea angulata Gonidea angulata-subangulata (Hemphill, 1891) = Gonidea angulata Hemistena lata (Rafinesque, 1820)
+ Odatelia radiata Rafinesque, 1832
+ Unio dehiscens Say, 1829
+ Unio oriens Lea, 1831
+ Anodonta prelonga Rafinesque, 1832
+ Unio hildrethi Delessert, 1841 Lampsilis (Actinonaias) computata (Crosse & Fischer, 1893) = Actinonaias sapotalensis Lampsilis (Actinonaias) coyensis Pilsbry, 1909 = Actinonaias coyensis Lampsilis (Actinonaias) gundlachi (Dunker, 1858) = Actinonaias gundlachi Lampsilis (Actinonaias) meddellina [sic] (Lea, 1838) = Actinonaias medellina Lampsilis (Actinonaias) moctezumensis Pilsbry, 1909 = Disconaias fimbriata Lampsilis (Actinonaias) ruthveni Baker, H.B., 1922 = Actinonaias sapotalensis Lampsilis (Actinonaias) sapotalensis (Lea, 1841) = Actinonaias sapotalensis Lampsilis (Actinonaias) signata Pilsbry, 1909 = Actinonaias signata Lampsilis (Actinonaias) undivaga Pilsbry, 1909 = Actinonaias signata Lampsilis (Cyrtonaias) alienigena (Crosse & Fischer, 1893) = Mesonaias umbrosa Lampsilis (Cyrtonaias) explicata (Morelet, 1849) = Mesonaias explicata Lampsilis (Cyrtonaias) livida Simpson, 1900 = Mesonaias explicata
+ Unio testudineus Reeve, 1865
+ Unio explicatus Fischer & Crosse, 1894 Lampsilis (Cyrtonaias) saladoensis (Lea, 1860) = Diplodon variabilis
+ Unio subtrapezius Philippi, 1847 Lampsilis (Cyrtonaias) saladoensis (Lea, 1860) = Cyrtonaias berlandierii Lampsilis (Cyrtonaias) sapperi (von Ihering, 1901) = Mesonaias explicata Lampsilis (Cyrtonaias) tampicoensis (Lea, 1838) = Mesonaias tampicoensis Lampsilis (Cyrtonaias) tampicoensis-berlandieri (Lea, 1857) = Cyrtonaias berlandierii Lampsilis (Cyrtonaias) tampicoensis-heermanni (Lea, 1862) = Cyrtonaias berlandierii Lampsilis (Cyrtonaias) tampicoensis-kusteriana N.V. = Mesonaias tampicoensis
+ Unio tampicoensis Küster, 1862 Lampsilis (Cyrtonaias) tampicoensis-tecomatensis (Lea, 1841) = Mesonaias tampicoensis Lampsilis (Cyrtonaias) umbrosa (Lea, 1856) = Mesonaias tampicoensis
+ Unio verrauxi Küster, 1856
+ Unio veracruzensis Lea, 1868
+ Lampsilis rovirosai sanjuanensis H.B. Baker, 1922 Lampsilis (Cyrtonaias) umbrosa (Lea, 1856) = Actinonaias medellina Lampsilis (Cyrtonaias) umbrosa (Lea, 1856) = Mesonaias umbrosa Lampsilis (Cyrtonaias) umbrosa (Lea, 1856) = Unio caffer Lampsilis (Delphinonaias) delphinulus (Morelet, 1849) = Delphinonaias largillierti Lampsilis (Delphinonaias) paludosa (Morelet, 1849) = Delphinonaias largillierti Lampsilis (Delphinonaias) scutulata (Morelet, 1849) = Delphinonaias scutulata Lampsilis (Disconaias) aztecorum (Philippi, 1847) = Nephronaias aztecorum
+ Unio strebelii Lea, 1866
+ Unio soledadensis Crosse & Fischer, 1893 Lampsilis (Disconaias) discus (Lea, 1838) = Disconaias disca Lampsilis (Disconaias) fimbriata Frierson, 1907 = Mesonaias tampicoensis
+ Lampsilis (Proptera) salinasensis Dall, 1908
+ Unio aztecorum “forma” major Martens, 1900
+ Actinonaias (Disconaias) walkeri H.B. Baker, 1922 Lampsilis (Disconaias) fimbriata Frierson, 1907 = Disconaias fimbriata Lampsilis (Disconaias) fimbriata Frierson, 1907 = Nephronaias aztecorum Lampsilis (Disconaias) martensi Frierson, 1927 = Nephronaias aztecorum
+ Unio aztecorum Martens, 1900 Lampsilis (Disconaias) novi-leonensis [sic] Pilsbry, 1908 = Friersonia iridella Lampsilis (Disconaias) panucoensis [sic] (von dem Busch in Philippi, 1843) = Disconaias disca
+ Unio mexicanus Sowerby, 1867
+ Unio lapidosus Kobelt, 1893
+ Unio (Lampsilis) discus var. connectens Martens, 1900 Lampsilis (Disconaias) pilsbryana Frierson, 1927 = Disconaias fimbriata
+ Unio strebeli Pilsbry, 1910
+ Lampsilis purpuriatus Frierson, 1912 Lampsilis (Disconaias) pilsbryana Frierson, 1927 = Nephronaias aztecorum Lampsilis (Disconaias) purpuriata (Say, 1831)
+ Unio aztecorum Martens, 1900 Lampsilis (Disconaias) purpuriata (Say, 1831) = Nephronaias aztecorum Lampsilis (Friersonia) iridella Pilsbry & Frierson, 1907 = Friersonia iridella Lampsilis (Friersonia) semirasa Pilsbry, 1909 = Popenaias semirasa Lampsilis (Leptodea) fragilis (Rafinesque, 1820) = Potamilus fragilis
+ Unio fragilis Swainson, 1823
+ Unio gracilis Barnes, 1823
+ Unio (Niaa) atrata Swainson, 1823 Lampsilis (Leptodea) fragilis-simpsoni Ferriss, 1900 = Potamilus fragilis Lampsilis (Leptodea) leptodon (Rafinesque, 1820) = Potamilus leptodon
+ Symphynota tenuissima Lea, 1829
+ Anodon purpurascens Swainson, 1823
+ Unio planus Barnes, 1823 Lampsilis (Leptodea) leptodon (Rafinesque, 1820) = Potamilus fragilis Lampsilis (Leptodea) velum (Say, 1829) = Potamilus leptodon
+ Unio planus Barnes, 1823
+ Lampsilis blatchleyi Daniels, 1902 Lampsilis (Leptodea) velum (Say, 1829) = Potamilus fragilis Lampsilis (Ligumia) australis Simpson, 1900 = Hamiota australis Lampsilis (Ligumia) borealis (Gray, 1882) = Lampsilis radiata Lampsilis (Ligumia) bracteata (Gould, 1855) = Lampsilis bracteata Lampsilis (Ligumia) delumbis (Conrad, 1834) = Sagittunio vaughanianus
+ Unio vaughanianus Lea, 1838
+ Unio contiguus Lea, 1861 Lampsilis (Ligumia) delumbis (Conrad, 1834) = Leaunio lienosus Lampsilis (Ligumia) delumbis (Conrad, 1834) = Villosa delumbis Lampsilis (Ligumia) fabacea (Lea, 1861) = Leaunio umbrans Lampsilis (Ligumia) fasciata (Rafinesque, 1820) = Ortmanniana ligamentina
+ Unio luteola Lamarck, 1819
+ Unio inflatus Barnes, 1823
+ Unio siliquoideus Barnes, 1823
+ Unio childreni Hanley, 1843
+ Unio distans J.G. Anthony, 1865 Lampsilis (Ligumia) fasciata (Rafinesque, 1820) = Lampsilis radiata Lampsilis (Ligumia) fasciata (Rafinesque, 1820) = Lampsilis siliquoidea Lampsilis (Ligumia) fasciata-claibornensis (Lea, 1838) = Lampsilis straminea
+ Unio obtusus Lea, 1840
+ Unio regularis Sowerby, 1868 Lampsilis (Ligumia) fasciata-hydiana (Lea, 1838) = Lampsilis hydiana
+ Unio approximus Lea, 1845
+ Unio affinis Lea, 1852
+ Unio placitus Lea, 1852 Lampsilis (Ligumia) fasciata-hydiana (Lea, 1838) = Lampsilis straminea Lampsilis (Ligumia) fasciata-hydiana (Lea, 1838) = Hamiota perovalis Lampsilis (Ligumia) fasciata-opalina (Anthony, J.G., 1866) = Cambarunio iris Lampsilis (Ligumia) fasciata-rosacea (DeKay, 1843) = Lampsilis siliquoidea Lampsilis (Ligumia) fasciata-straminea (Conrad, 1834) = Lampsilis straminea
+ Unio pallescens Lea, 1845 Lampsilis (Ligumia) fasciata-superiorensis (Marsh, 1897) = Lampsilis siliquoidea Lampsilis (Ligumia) gracilior (Lea, 1856) = Leaunio lienosus
+ Unio obfuscus Lea, 1857 Lampsilis (Ligumia) gracilior (Lea, 1856) = Villosa vibex Lampsilis (Ligumia) lienosa (Conrad, 1834) = Leaunio lienosus
+ Unio saxeus Conrad, 1838
+ Unio fontanus Conrad, 1866
+ Unio caliginosus Lea, 1845
+ Unio nigerrimus Lea, 1852
+ Unio proximus Lea, 1852
+ Unio subellipsis Lea, 1857
+ Unio concestator Lea, 1857
+ Unio apicinus Lea, 1857
+ Unio intercedens Lea, 1857
+ Unio genuinus Lea, 1868
+ Unio unicostatus B.H. Wright, 1899
+ Unio fuligo Reeve, 1865
+ Unio gouldii Lea, 1845
+ Unio porphyreus Lea, 1861 Lampsilis (Ligumia) lienosa (Conrad, 1834) = Villosa delumbis Lampsilis (Ligumia) lienosa (Conrad, 1834) = Leaunio umbrans Lampsilis (Ligumia) menkiana (Lea, 1838) = Ptychobranchus fasciolaris
+ Unio interruptus Lea, 1838
+ Obliquaria (Plagiola) interrupta Rafinesque, 1820
+ Unio pulcher Lea, 1838
+ Unio latiradiatus Conrad, 1838
+ Unio perdix Reeve, 1864 Lampsilis (Ligumia) menkiana (Lea, 1838) = Cambarunio taeniatus Lampsilis (Ligumia) modioliformis (Lea, 1834) = Villosa vibex
+ Unio delumbis Küster, 1861 Lampsilis (Ligumia) nasuta (Say, 1817) = Sagittunio nasutus
+ Obliquaria (Ellipsaria) attenuata Rafinesque, 1820
+ Unio rostrata Valenciennes, 1827
+ Unio vaughanianus Sowerby, 1868
+ Unio fisherianus Küster, 1861 Lampsilis (Ligumia) nebulosa (Conrad, 1834) = Cambarunio iris
+ Unio cumberlandicus Lea, 1838
+ Margaron (Unio) cumberlandianus Lea, 1852
+ Unio glaber Lea, 1838
+ Unio simus Lea, 1838
+ Unio notatus Lea, 1838
+ Unio fucatus Lea, 1860
+ Unio discrepans Lea, 1860
+ Unio linguaeformis Lea, 1860
+ Unio scitulus Lea, 1860
+ Unio sparus Lea, 1868
+ Unio perpictus Lea, 1860
+ Unio proximus Küster, 1861
+ Unio subrostratus Küster, 1861 Lampsilis (Ligumia) nebulosa (Conrad, 1834) = Cambarunio simus Lampsilis (Ligumia) nebulosa (Conrad, 1834) = Leaunio lienosus Lampsilis (Ligumia) nebulosa (Conrad, 1834) = Cambarunio nebulosus Lampsilis (Ligumia) nebulosa (Conrad, 1834) = Cambarunio jonesii Lampsilis (Ligumia) nebulosa (Conrad, 1834) = Cambarunio taeniatus Lampsilis (Ligumia) nervosa (Rafinesque, 1820) = Cambarunio iris
+ Unio iris Lea, 1829
+ Unio dactylus Lea, 1840
+ Unio fatuus Lea, 1840
+ Unio amoenus Lea, 1840
+ Unio novieboraci Lea, 1838
+ Unio creperus Lea, 1838
+ Unio subrostratus Reeve, 1864 Lampsilis (Ligumia) nervosa (Rafinesque, 1820) = Cambarunio dactylus Lampsilis (Ligumia) nervosa (Rafinesque, 1820) = Megalonaias nervosa Lampsilis (Ligumia) ogeecheensis (Conrad, 1849) = Villosa delumbis
+ Unio concavus Lea, 1852
+ Unio sudus Lea, 1857 Lampsilis (Ligumia) ogeecheensis (Conrad, 1849) = Villosa vibex Lampsilis (Ligumia) ortmanni (Walker, 1925) = Leaunio ortmanni Lampsilis (Ligumia) perpasta (Lea, 1861) = Lampsilis straminea Lampsilis (Ligumia) picta (Lea, 1834) = Cambarunio taeniatus
+ Unio camelopardilis Lea, 1860 Lampsilis (Ligumia) powellii (Lea, 1853) = Lampsilis powellii Lampsilis (Ligumia) prattii (Lea, 1858) = Leaunio lienosus Lampsilis (Ligumia) propia [sic] (Lea, 1865) = Leaunio umbrans Lampsilis (Ligumia) radians (Lea, 1857) = Cambarunio nebulosus
+ Unio plancus Lea, 1860
+ Unio jonesii Lea, 1859
+ Unio difficilis Lea, 1868 Lampsilis (Ligumia) radians (Lea, 1857) = Cambarunio jonesii Lampsilis (Ligumia) radiata (Gmelin, 1791) = Lampsilis radiata
+ Unio virginiana Lamarck, 1819
+ Unio lineata Bory de St. Vincent, 1827
+ Unio elongata Goodrich, 1859
+ Unio oblongatus Wood, 1828
+ Unio obliquiradiatus Reeve, 1865 Lampsilis (Ligumia) radiata (Gmelin, 1791) = Elliptio complanata Lampsilis (Ligumia) radiata-mellina [sic] (Conrad, 1838) = Lampsilis radiata Lampsilis (Ligumia) radiata-oneidensis Baker, F.C., 1918 = Lampsilis radiata Lampsilis (Ligumia) radiata-tenebrosa (Conrad, 1834) = Lampsilis radiata
+ Margarita (Unio) tenerus Lea, 1836
+ Unio conspicuus Lea, 1872 Lampsilis (Ligumia) radiata-tenebrosa (Conrad, 1834) = Villosa delumbis Lampsilis (Ligumia) recta (Lamarck, 1819) = Ligumia recta
+ Unio sageri Conrad, 1836 Lampsilis (Ligumia) recta-latissima (Rafinesque, 1820) = Ligumia recta
+ Unio leprosus Miles, 1861
+ Unio praelongus Barnes, 1823 Lampsilis (Ligumia) reeviana [sic] (Lea, 1852) = Lampsilis reeveiana Lampsilis (Ligumia) reeviana-brevicula (Call, 1887) = Lampsilis reeveiana
+ Lampsilis brittsi Simpson, 1900 Lampsilis (Ligumia) reeviana-brevicula (Call, 1887) = Lampsilis brittsi Lampsilis (Ligumia) stagnalis (Conrad, 1849) = Villosa vibex Lampsilis (Ligumia) streckeri Frierson, 1927 = Lampsilis streckeri Lampsilis (Ligumia) subangulata (Lea, 1840) = Hamiota subangulata
+ Unio kirklandianus S.H. Wright, 1897 Lampsilis (Ligumia) subrostrata (Say, 1831) = Cambarunio dactylus
+ Lampsilis nashvillensis Agassiz, 1852
+ Unio rutersvillensis Lea, 1859
+ Unio topekaensis Lea, 1868
+ Unio mississippiensis Conrad, 1850
+ Unio cocoduensis Reeve, 1865
+ Unio muhlfeldianus Lea, 1838 Lampsilis (Ligumia) subrostrata (Say, 1831) = Sagittunio subrostratus Lampsilis (Ligumia) subrostrata-furva Simpson, 1914 = Sagittunio subrostratus Lampsilis (Ligumia) taeniata (Conrad, 1834) = Cambarunio taeniatus
+ Unio lindsleyi Lea, 1860
+ Unio tennesseensis Lea, 1840
+ Unio punctatus Lea, 1865
+ Unio camelopardalis Sowerby, 1866 Lampsilis (Ligumia) tenera (Lea, 1840) = Cambarunio iris
+ Unio regularis Lea, 1841 Lampsilis (Ligumia) teres (Rafinesque, 1820) = Lampsilis teres
+ Unio anodontoides Lea, 1831
+ Unio siliquoideus Barnes, 1823 Lampsilis (Ligumia) teres (Rafinesque, 1820) = Lampsilis siliquoidea Lampsilis (Ligumia) teres-fallaciosa Simpson, 1900 [sic] = Lampsilis teres Lampsilis (Ligumia) teres-floridensis (Lea, 1852) = Lampsilis floridensis Lampsilis (Ligumia) vanuxemensis (Lea, 1838) = Cambarunio iris
+ Margaron (Unio) vanuxemii Lea, 1870
+ Unio nitens Lea, 1840
+ Unio tenebricus Lea, 1857
+ Unio umbrans Lea, 1857
+ Unio pybasii Lea, 1858
+ Unio copei Lea, 1868
+ Unio dispansus Lea, 1871
+ Unio puniceus Haldeman, 1842
+ Unio obscurus Lea, 1838 Lampsilis (Ligumia) vanuxemensis (Lea, 1838) = Leaunio vanuxemensis Lampsilis (Ligumia) vanuxemensis (Lea, 1838) = Leaunio umbrans Lampsilis (Ligumia) vibex (Conrad, 1834) = Villosa vibex
+ Unio exiguus Lea, 1840
+ Unio prevostianus Lea, 1852
+ Unio rutilans Lea, 1857 Lampsilis (Ligumia) vibex-dispar (Lea, 1860) = Leaunio lienosus Lampsilis (Ligumia) vibex-nigrina (Lea, 1852) = Villosa vibex
+ Unio averellii B.H. Wright, 1888 Lampsilis (Ligumia) vibex-planicostata (Lea, 1860) = Cambarunio nebulosus Lampsilis (Ligumia) virescens (Lea, 1858) = Lampsilis virescens Lampsilis (Ligumia) zeigleriana (Lea, 1838) = Cambarunio iris Lampsilis (Ortmanniana) abruptus (Say, 1831) = Lampsilis abrupta
+ Toxolasma cyclips Rafinesque, 1831
+ Unio suborbiculatus of Authors, unknown year
+ Margarita (Unio) orbiculatus Lea, 1836 Lampsilis (Ortmanniana) abruptus (Say, 1831) = Obovaria subrotunda Lampsilis (Ortmanniana) carinata (Barnes, 1823) = Ortmanniana ligamentina
+ Unio ligamentina Lamarck, 1819
+ Unio ellipticus Barnes, 1823
+ Unio ellipsarius Say, 1834
+ Unio fasciatus Conrad, 1835
+ Mya gravis Wood, 1828
+ Unio luteolus Sowerby, 1867
+ Unio crassidens Sowerby, 1868
+ Unio venustus Sowerby, 1868 Lampsilis (Ortmanniana) carinata-calendis (Rafinesque, 1831) = Elliptio crassidens
+ Unio crassus Sowerby, 1868
+ Lampsilis (sec. Eurynia) ligamentina var. gibbus Simpson, 1900 Lampsilis (Ortmanniana) carinata-calendis (Rafinesque, 1831) = Ortmanniana ligamentina Lampsilis (Ortmanniana) carinata-pinguis (Lea, 1857) = Ortmanniana ligamentina Lampsilis (Ortmanniana) carinata-upsoni (Marsh, 1887) = Ortmanniana ligamentina Lampsilis (Ortmanniana) higginsii (Lea, 1857) = Lampsilis higginsii
+ Unio orbiculatus Call, 1900 Lampsilis (s.s.) altilis (Conrad, 1834) = Hamiota altilis
+ Unio clarkianus Lea, 1852 Lampsilis (s.s.) cardium Rafinesque, 1820 = Lampsilis cardium
+ Unio occidens Lea, 1829
+ Unio subovatus Lea, 1831
+ Unio lenis Conrad, 1838
+ Unio latissimus Sowerby, 1868
+ Unio cariosus De Kay, 1843
+ Unio ovatus Deshayes, 1839
+ Unio ventricosus Barnes, 1823 Lampsilis (s.s.) cardium-lurida Simpson, 1914 = Lampsilis cardium Lampsilis (s.s.) cardium-satura (Lea, 1853) = Lampsilis satura
+ Unio capax Green, 1832 Lampsilis (s.s.) cardium-satura (Lea, 1853) = Potamilus capax Lampsilis (s.s.) cariosa (Say, 1817) = Lampsilis radiata
+ Unio luteola Lamarck, 1819
+ Lampsilis pallida Rafinesque, 1820
+ Unio ovata Valenciennes, 1827
+ Unio oratus Conrad, 1849
+ Unio canadensis Lea, 1857 Lampsilis (s.s.) cariosa (Say, 1817) = Lampsilis cariosa Lampsilis (s.s.) cariosa (Say, 1817) = Lampsilis cardium Lampsilis (s.s.) dolabraeformis (Lea, 1838) = Lampsilis dolabraeformis Lampsilis (s.s.) fasciola Rafinesque, 1820 = Lampsilis cardium
+ Unio multiradiatus Lea, 1829
+ Unio perradiatus Lea, 1858
+ Unio subovatus Sowerby, 1868
+ Unio ligamentinus Deshayes, 1835 Lampsilis (s.s.) fasciola Rafinesque, 1820 = Lampsilis fasciola Lampsilis (s.s.) ochracea (Say, 1817) = Atlanticoncha ochracea
+ Lampsilis rosea Rafinesque, 1820
+ Unio radiatus Barnes, 1823
+ Unio boydianus Lea, 1840
+ Unio crocatus Lea, 1841 Lampsilis (s.s.) ornatus (Conrad, 1835) = Lampsilis ornata
+ Unio excavatus Lea, 1857
+ Unio lineatus Lea, 1840
+ Lampsilis (s.s.) binominatus Simpson, 1900 Lampsilis (s.s.) ornatus (Conrad, 1835) = Lampsilis binominata Lampsilis (s.s.) ovatus (Say, 1817) = Lampsilis ovata Lampsilis (s.s.) pectorosa (Conrad, 1834) = Ortmanniana pectorosa
+ Unio perdix Lea, 1834 Lampsilis (s.s.) pectorosa-biangularis (Lea, 1840) = Ortmanniana pectorosa
+ Unio biangulatus Lea, 1840
+ Bariosta vittatis Rafinesque, 1831 Lampsilis (s.s.) perovalis (Conrad, 1834) = Hamiota perovalis
+ Unio doliaris Lea, 1865 Lampsilis (s.s.) perovalis (Conrad, 1834) = Hamiota altilis Lampsilis (s.s.) rafinesqueana Frierson, 1927 = Lampsilis rafinesqueana Lampsilis (s.s.) sowerbyana Frierson, 1927 = Ortmanniana ligamentina
+ Unio pictus Sowerby, 1868 Lampsilis (s.s.) spillmani (Lea, 1861) = Hamiota perovalis
+ Unio gerhardtii Lea, 1862 Lampsilis (s.s.) spillmani (Lea, 1861) = Hamiota altilis Lampsilis (s.s.) splendida (Lea, 1838) = Atlanticoncha ochracea
+ Unio regularis Sowerby, 1866
+ Unio rosaceus Conrad, 1849 Lampsilis (s.s.) splendida (Lea, 1838) = Lampsilis splendida Lampsilis (Venusta) arkansensis [sic] (Lea, 1862) = Obovaria arkansasensis Lampsilis (Venusta) constricta (Conrad, 1838) = Venustaconcha constricta
+ Unio genthii Lea, 1857 Lampsilis (Venusta) ellipsiformis (Conrad, 1836) = Venustaconcha ellipsiformis
+ Unio mucronatus Barnes, 1823
+ Unio spatulatus Lea, 1845 Lampsilis (Venusta) ellipsiformis (Conrad, 1836) = Eurynia dilatata Lampsilis (Venusta) pleasii (Marsh, 1891) = Venustaconcha pleasii Lampsilis (Venusta) trabalis (Conrad, 1834) = Venustaconcha troostensis
+ Unio troostensis Lea, 1834
+ Unio troostii Lea, 1870
+ Unio perpurpureus Lea, 1861
+ Unio vanuxemensis Sowerby, 1866
+ Unio maestus Küster, 1861
+ Unio glans Conrad, 1836 Lampsilis (Venusta) trabalis (Conrad, 1834) = Venustaconcha trabalis Lampsilis (Venusta) venusta (Lea, 1838) = Venustaconcha ellipsiformis Lampsilis (Villosa) amygdalum (Lea, 1843) = Villosa amygdalum
+ Unio trossulus Lea, 1843
+ Unio lepidus Gould, 1856
+ Unio papyraceus Gould, 1845 Lampsilis (Villosa) pellucidus (Lea, 1845) = Villosa vibex Lampsilis (Villosa) vesicularis (Lea, 1872) = Villosa amygdalum
+ Unio singleyanus Marsh, 1891
+ Unio minor of Authors, unknown year Lampsilis (Villosa) villosa (Wright, B.H., 1898) = Villosa villosa Lampsilis (Villosa) wrightiana Frierson, 1927 = Villosa amygdalum Lasmigona (Platynaias) charlottensis (Lea, 1863) = Platynaias decorata Lasmigona (Platynaias) decorata (Lea, 1852) = Platynaias decorata
+ Unio insolidus Lea, 1872 Lasmigona (Platynaias) quadrata (Lea, 1861) = Platynaias subviridis Lasmigona (Platynaias) subviridis (Conrad, 1835) = Platynaias subviridis
+ Unio tappanianus Lea, 1838
+ Unio hyalinus Lea, 1845
+ Unio pertenuis Lea, 1863 Lasmigona (Platynaias) subviridis-neglecta (Lea, 1843) = Platynaias subviridis Lasmigona (Platynaias) viridis (Rafinesque, 1820) = Platynaias compressa
+ Symphynota compressa Lea, 1829
+ Unio alasmodontina Lea, 1829
+ Margaron (Unio) pressus Lea, 1852 Lasmigona (Platynaias) viridis (Rafinesque, 1820) = Sulcularia viridis Lasmigona (Platynaias) viridis-plebia (Adams, C.B., 1842) = Platynaias compressa Lasmigona (Pterosyna) complanata (Barnes, 1823) = Pterosyna complanata
+ Complanaria gigas Swainson, 1840 Lasmigona (Pterosyna) complanata-katherinae (Lea, 1838) = Pterosyna complanata Lasmigona (s.s.) costata (Rafinesque, 1820) = Lasmigona costata
+ Alasmodonta rugosa Barnes, 1823 Lasmigona (s.s.) costata-ereganensis Grier, 1918 = Lasmigona costata Lasmigona (s.s.) costata-viridis (Rafinesque, 1831) = Sulcularia viridis Leila (Pseudoleila) ciconia (Gould, 1851) = Anodontites trapesialis
+ Anodon ciconia Sowerby, 1870
+ Anodon glaucus Sowerby, 1870
+ Anodonta glauca var. B sinaloensis Crosse & Fischer, 1884 Leila (Pseudoleila) nicaragua [sic] (Philippi, 1848) = Anodontites trapesialis
+ Anodonta bridgesii Lea, 1868
+ Anodonta jewettiana Lea, 1868
+ Anodonta jewettii Lea, 1868 Leila (Pseudoleila) trapezialis [sic]-glauca (Valenciennes, 1827) = Anodontites trapesialis Lemiox fabalis (Lea, 1831) = Paetulunio fabalis
+ Unio capillus Say, 1831
+ Unio lapillus Say, 1831 Lemiox rimosus (Rafinesque, 1831)
+ Unio caelatus Conrad, 1834 Margaritana hembeli (Conrad, 1838) = Margaritifera hembeli Margaritana margaritifera (Linnaeus, 1758) = Margaritifera margaritifera
+ Alasmodonta arcuata Barnes, 1823
+ Alasmodon falcata Gould, 1850
+ Alasmodon yubaensis Trask, 1854 Margaritana margaritifera (Linnaeus, 1758) = Margaritifera falcata Medionidus acutissimus (Lea, 1831)
+ Unio parvulus Lea, 1860
+ Unio rubellinus Lea, 1857
+ Unio semiplicatus Küster, 1862 Medionidus acutissimus (Lea, 1831) = Medionidus parvulus Medionidus conradicus (Lea, 1834)
+ Unio conradius Conrad, 1838
+ Margaron (Unio) conradianus Lea, 1870
+ Obliquaria plateolus Rafinesque, 1831 Medionidus penicillatus (Lea, 1857)
+ Unio kingii B.H. Wright, 1900 Medionidus simpsonianus Walker, 1905 Medionidus walkeri (Wright, S.H., 1897) Mycetopoda weddellii (Húpe, 1857) = Mycetopoda siliquosa
+ Mycetopus subsinuatus Sowerby, 1868 Mycetopoda weddellii (Húpe, 1857) = Mycetopoda subsinuata Nodularia aegyptiacus (Cailliaud, 1827) = Atlanticoncha ochracea
+ Unio troostensis Sowerby, 1866 Nodularia laevirostris (Benson, 1862) = Leaunio lienosus
+ Unio bicaelatus Reeve, 1865 Obliquaria reflexa Rafinesque, 1820
+ Unio cornutus Barnes, 1823
+ Unio torulosus Short & Eaton, 1831 Obliquaria reflexa-conradi N.V. = Obliquaria reflexa Obovaria (Pseudoon) castanea (Lea, 1831) = Obovaria arkansasensis Obovaria (Pseudoon) curtus (Lea, 1859) = Pleurobema curtum Obovaria (Pseudoon) jacksoniana (Frierson, 1912) = Obovaria arkansasensis Obovaria (Pseudoon) olivaria (Rafinesque, 1820) = Obovaria olivaria
+ Unio ellipsis Lea, 1828
+ Unio brevialis Sowerby & Sowerby, 1821
+ Unio taitanus Sowerby, 1868
+ Unio mytilloides Frierson, 1927
+ Diplasma vitrea Potiez & Michaud, 1844 Obovaria (s.s.) levigata (Rafinesque, 1820) = Obovaria subrotunda
+ Unio lens Lea, 1831
+ Obovaria lens var. parva Simpson, 1914 Obovaria (s.s.) retusa (Lamarck, 1819) = Obovaria retusa
+ Obovaria torsa Rafinesque, 1820
+ Unio incurvis Say, 1829
+ Unio orbiculatus Hildreth, 1828 Obovaria (s.s.) retusa (Lamarck, 1819) = Obovaria subrotunda Obovaria (s.s.) rotulata (Wright, B.H., 1899) = Reginaia rotulata Obovaria (s.s.) subrotunda (Rafinesque, 1820) = Pleurobema clava
+ Unio circulus Lea, 1829
+ Unio (Aximedia) elliptica Rafinesque, 1820
+ Unio (Aximedia) zonalis Rafinesque, 1820
+ Unio leibii Lea, 1862
+ Unio rotundus Wood, 1828 Obovaria (s.s.) subrotunda (Rafinesque, 1820) = Obovaria subrotunda Obovaria (s.s.) subrotunda-depygis (Conrad, 1866) = Obovaria subrotunda Obovaria (s.s.) subrotunda-uber (Conrad, 1866) = Obovaria unicolor Obovaria (s.s.) subrotunda-unicolor (Lea, 1845) = Obovaria unicolor
+ Unio tinkeri B.H. Wright, 1899 Parreysia robsoni Frierson, 1927 = Fusconaia masoni
+ Unio pumilus Sowerby, 1866 Pegias fabula (Lea, 1838)
+ Margaritana curreyiana Lea, 1840 Plagiola lineolata (Rafinesque, 1820) = Ellipsaria lineolata
+ Obliquaria (Plagiola) depressa Rafinesque, 1820
+ Unio securis Lea, 1829 Pleurobema (Lexingtonia) castum (Lea, 1860) = Fusconaia masoni Pleurobema (Lexingtonia) subplanum (Conrad, 1837) = Fusconaia masoni
+ Unio pumilus Lea, 1838
+ Unio striatulus Lea, 1857
+ Unio brimleyi S.H. Wright, 1897 Pleurobema (Lexingtonia) utriculum (Lea, 1845) = Fusconaia masoni Pleurobema (Plethobasus) cicatricoideum [sic] (Frierson, 1911) = Plethobasus cicatricosus Pleurobema (Plethobasus) compertum (Frierson, 1911) = Plethobasus cyphyus Pleurobema (Plethobasus) cyphyum (Rafinesque, 1820) = Plethobasus cyphyus
+ Unio scyphius Küster, 1861
+ Unio aesopus Green, 1827
+ Unio cicatricosus Say, 1829 Pleurobema (Plethobasus) cyphyum (Rafinesque, 1820) = Plethobasus cicatricosus Pleurobema (Plethobasus) cyphyum-phillipsi (Conrad, 1835) = Obliquaria reflexa Pleurobema (Plethobasus) detectum (Frierson, 1911) = Plethobasus cicatricosus
+ Unio varicosus Lea, 1831 Pleurobema (s.s.) aldrichi Frierson, 1927 = Pleurobema taitianum Pleurobema (s.s.) altum (Conrad, 1854) Pleurobema (s.s.) amabile (Lea, 1865) = Pleurobema pyriforme Pleurobema (s.s.) avellana (Simpson, 1900) = Pleurobema rubellum Pleurobema (s.s.) bulbosum (Lea, 1857) = Pleurobema pyriforme
+ Pleurobema patsaligensis Simpson, 1900 Pleurobema (s.s.) bulbosum (Lea, 1857) = Pleurobema strodeanum Pleurobema (s.s.) clava-patulum (Lea, 1829) = Pleurobema clava Pleurobema (s.s.) concolor (Lea, 1861) = Pleurobema perovatum
+ Unio pinkstoni S.H. Wright, 1897 Pleurobema (s.s.) decisus (Lea, 1831) = Pleurobema decisum
+ Unio crebrivittatus Lea, 1861
+ Unio anaticulus Lea, 1861
+ Unio consanguineus Lea, 1861
+ Unio scalenius Say, 1834
+ Unio medius Reeve, 1864 Pleurobema (s.s.) decisus-chattanoogaensis (Lea, 1858) = Pleurobema decisum Pleurobema (s.s.) fibuloides (Lea, 1859) = Pleurobema fibuloides Pleurobema (s.s.) fictum Frierson, 1927 = Pleurobema rubellum Pleurobema (s.s.) flavidulum (Lea, 1861) = Pleurobema perovatum Pleurobema (s.s.) furvum (Conrad, 1834) = Pleurobema rubellum Pleurobema (s.s.) gibberum (Lea, 1838) = Pleuronaia gibber Pleurobema (s.s.) hagleri (Frierson, 1900) = Pleurobema rubellum Pleurobema (s.s.) hanleyanum [sic] (Lea, 1852) = Pleurobema hanleyianum Pleurobema (s.s.) harperi (Wright, B.H., 1899) = Pleurobema pyriforme Pleurobema (s.s.) hartmanianum (Lea, 1860) = Pleurobema hartmanianum Pleurobema (s.s.) instructum (Lea, 1861) = Pleurobema verum
+ Unio verus Lea, 1861 Pleurobema (s.s.) interventum (Lea, 1861) = Pleurobema perovatum
+ Unio pallidofulvus Lea, 1861
+ Unio hanleyanus Reeve, 1864 Pleurobema (s.s.) interventum (Lea, 1861) = Pleurobema hanleyianum Pleurobema (s.s.) johannis (Lea, 1859) = Pleurobema perovatum Pleurobema (s.s.) lewisii (Lea, 1861) = Pleurobema fibuloides
+ Unio crapulus Lea, 1861 Pleurobema (s.s.) marshalli Frierson, 1927 = Pleurobema marshalli Pleurobema (s.s.) modicum (Lea, 1857) = Pleurobema pyriforme Pleurobema (s.s.) murrayense (Lea, 1868) = Pleurobema stabile Pleurobema (s.s.) mytiloides Rafinesque, 1820 = Pleurobema clava
+ Pleurobema cuneata Rafinesque, 1820
+ Unio clavus Conrad, 1835
+ Unio clava Lamarck, 1819 Pleurobema (s.s.) nucleopsis (Conrad, 1849) = Pleurobema georgianum
+ Unio medius Lea, 1861 Pleurobema (s.s.) oviformis (Conrad, 1834) = Pleurobema oviforme
+ Unio patulus Conrad, 1838
+ Unio holstonensis Lea, 1840 Pleurobema (s.s.) perovatum (Conrad, 1834) = Pleurobema perovatum
+ Unio nux Lea, 1852
+ Unio cinnamomicus Lea, 1861 Pleurobema (s.s.) pulvinulum (Lea, 1845) = Pleurobema georgianum
+ Unio troschelianus Lea, 1852 Pleurobema (s.s.) pulvinulum (Lea, 1845) = Pleurobema rubellum Pleurobema (s.s.) pyriforme (Lea, 1857) = Pleurobema pyriforme
+ Unio reclusus B.H. Wright, 1898 Pleurobema (s.s.) rubellum (Conrad, 1834) = Ptychobranchus greenii
+ Unio stabilis Lea, 1861
+ Unio rudis Conrad, 1837
+ Unio brumbyanus Lea, 1841 Pleurobema (s.s.) rubellum (Conrad, 1834) = Pleurobema oviforme Pleurobema (s.s.) rubellum (Conrad, 1834) = Pleurobema rubellum Pleurobema (s.s.) rubellum (Conrad, 1834) = Pleurobema stabile Pleurobema (s.s.) showalteri (Lea, 1860) = Pleurobema georgianum
+ Unio irrasus Lea, 1861 Pleurobema (s.s.) showalteri (Lea, 1860) = Pleurobema hartmanianum Pleurobema (s.s.) simulans (Lea, 1871) = Pleurobema perovatum Pleurobema (s.s.) striatum (Lea, 1840) = Pleurobema pyriforme
+ Unio litus Lea, 1871
+ Pleurobema simpsoni Vanatta, 1915 Pleurobema (s.s.) strodeanum (Wright, B.H., 1898) = Pleurobema strodeanum Pleurobema (s.s.) taitianum (Lea, 1834) = Pleurobema taitianum
+ Pleurobema tombigbeanum Frierson, 1908 Proptera alata (Say, 1817) = Potamilus alatus Proptera amphichaena (Frierson, 1898) = Potamilus amphichaenus Proptera capax (Green, 1832) = Lampsilis cardium
+ Unio ventricosus Barnes, 1823
+ Symphynota globosa Lea, 1834 Proptera capax (Green, 1832) = Potamilus capax Proptera inflata (Lea, 1831) = Potamilus inflatus
+ Unio alabamensis Conrad, 1834 Proptera laevissima (Lea, 1829) = Potamilus ohiensis
+ Unio planus Barnes, 1823
+ Unio discoideus Sowerby, 1866
+ Unio ohiensis Say, 1834 Proptera laevissima (Lea, 1829) = Potamilus fragilis Proptera purpurata (Lamarck, 1819) = Potamilus purpuratus
+ Unio ater Lea, 1829
+ Unio lugubris Say, 1832
+ Unio permiscens Lea, 1859
+ Unio dolosus Sowerby, 1866
+ Unio coloradoensis Lea, 1856 Proptera purpurata-poulsoni (Conrad, 1834) = Potamilus purpuratus
+ Unio dolosus Lea, 1860 Proptera rovirosai (Pilsbry, 1900) = Mesonaias explicata Psoronaias crocodilorum (Morelet, 1849)
+ Unio pliciferus Reeve, 1864
+ Unio crocodilorum var. G praestricta Fischer & Crosse, 1894
+ Unio crocodilorum var. B semipustulata Fischer & Crosse, 1894 Psoronaias distinctus (Crosse & Fischer, 1893) = Psoronaias distincta Psoronaias guatemalensis (Simpson, 1900) Psoronaias herrerae (Marshall, 1923) = Psoronaias semigranosa Psoronaias kuxensis Frierson, 1917 = Psoronaias guatemalensis Psoronaias martensi Frierson, 1927 = Psoronaias crocodilorum
+ Unio psoricus Martens, 1900 Psoronaias morini (Morelet, 1851) = Psoronaias crocodilorum Psoronaias ostreatus (Morelet, 1849) = Psoronaias crocodilorum Psoronaias percompressus (Crosse & Fischer, 1893) [sic] = Psoronaias crocodilorum Psoronaias plexoideus Frierson, 1927
+ Unio rusticus Sowerby, 1868 Psoronaias plexus (Conrad, 1838) = Sphenonaias plexus
+ Unio carbonarius Lea, 1838
+ Unio pliciferus Lea, 1838 Psoronaias profunda (Simpson, 1914) = Psoronaias crocodilorum Psoronaias quadrata (Simpson, 1914) = Psoronaias crocodilorum Psoronaias rudis (Simpson, 1900) = Psoronaias crocodilorum Psoronaias semigranosus (von dem Busch, 1845) = Psoronaias semigranosa
+ Unio testudineus Morelet, 1849 Psoronaias semigranosus (von dem Busch, 1845) = Psoronaias crocodilorum Psoronaias semigranosus-corium (Reeve, 1864) = Psoronaias crocodilorum Psoronaias semigranosus-psoricus (Morelet, 1851) = Psoronaias crocodilorum Psoronaias usumacintae Crosse & Fischer, 1892 = Psoronaias crocodilorum Ptychobranchus (s.s.) fasciolare (Rafinesque, 1820) = Ptychobranchus fasciolaris
+ Obliquaria (Ellipsaria) sinuata Rafinesque, 1820
+ Unio cultratus Rafinesque, 1831
+ Unio phaseolus Hildreth, 1828
+ Unio planulatus Lea, 1829
+ Unio compressissimus Lea, 1845
+ Unio abacus Haldeman, 1842 Ptychobranchus (s.s.) fasciolare (Rafinesque, 1820) = Eurynia dilatata Ptychobranchus (s.s.) fasciolare-arquatum (Conrad, 1854) = Ligumia recta Ptychobranchus (s.s.) fasciolare-longa (Rafinesque, 1820) = Ptychobranchus fasciolaris
+ Unio camelus Lea, 1834 Ptychobranchus (s.s.) foremanianum (Lea, 1842) = Ptychobranchus foremanianus
+ Unio velatus Conrad, 1854
+ Unio woodwardius Lea, 1857
+ Unio woodwardianus Lea, 1859
+ Unio trinacrus Lea, 1861 Ptychobranchus (s.s.) greeni (Conrad, 1834) = Ptychobranchus greenii
+ Unio simplex Lea, 1845
+ Unio flavescens Lea, 1845 Ptychobranchus (s.s.) occidentalis (Conrad, 1836) = Ptychobranchus occidentalis
+ Ptychobranchus clintonensis Simpson, 1900 Ptychobranchus (Subtentus) subtentum (Say, 1825) = Ptychobranchus subtentus Quadrula (Bullata) archeri Frierson, 1905 = Pustulosa kieneriana Quadrula (Bullata) aureus (Lea, 1859) = Pustulosa pustulosa
+ Unio petrinus Frierson, 1927 Quadrula (Bullata) couchiana (Lea, 1860) = Quadrula couchiana Quadrula (Bullata) houstonensis (Lea, 1859) = Pustulosa pustulosa Quadrula (Bullata) nodulata (Rafinesque, 1820) = Pustulosa pustulosa
+ Unio pustulatus Lea, 1831
+ Unio dorfeuillianus Lea, 1838 Quadrula (Bullata) nodulata (Rafinesque, 1820) = Pustulosa nodulata Quadrula (Bullata) petrina (Gould, 1855) = Pustulosa petrina
+ Unio bollii Call, 1881 Quadrula (Bullata) pustulosa (Lea, 1831) = Pustulosa pustulosa
+ Obliquaria (Quadrula) bullata Rafinesque, 1820
+ Unio verrucosa Valenciennes, 1827
+ Unio nodulosus Say, 1834 Quadrula (Bullata) pustulosa-asperata (Lea, 1861) = Pustulosa pustulosa
+ Unio pernodosus Lea, 1845 Quadrula (Bullata) pustulosa-asperata (Lea, 1861) = Pustulosa kieneriana Quadrula (Bullata) pustulosa-keineriana [sic] (Lea, 1853) = Pustulosa kieneriana Quadrula (Bullata) pustulosa-mortoni (Conrad, 1836) = Pustulosa pustulosa
+ Unio turgidus Lea, 1838
+ Unio nodiferus Conrad, 1841 Quadrula (Bullata) pustulosa-paupercula (Lea, 1861) = Pustulosa pustulosa Quadrula (Bullata) pustulosa-prasina (Conrad, 1834) = Pustulosa pustulosa
+ Unio schoolcraftensis Lea, 1834
+ Unio schoolcraftii Lea, 1870 Quadrula (Bullata) pustulosa-refulgens (Lea, 1868) = Pustulosa pustulosa
+ Unio sphaericus Lea, 1868 Quadrula (Bullata) pustulosa-vallata (Lea, 1868) = Pustulosa pustulosa
+ Unio cahabensis Lea, 1871 Quadrula (Cyclonaias) tuberculata (Rafinesque, 1820) = Cyclonaias tuberculata
+ Unio verrucosus Barnes, 1823
+ Unio tuberculosus Valenciennes, 1827 Quadrula (Cyclonaias) tuberculata-granifera (Lea, 1838) = Cyclonaias tuberculata Quadrula (Cyclonaias) tuberculata-pusilla (Simpson, 1900) = Cyclonaias tuberculata Quadrula (Cyclonaias) tuberculata-utterbackiana Frierson, 1927 = Cyclonaias tuberculata
+ Plethobasus cooperianus Utterback, 1915 Quadrula (Fusconia [sic]) antrosa (Rafinesque, 1820) = Reginaia ebenus
+ Obovaria pachostea Rafinesque, 1820
+ Obovaria obovalis Rafinesque, 1820
+ Unio ebenus Lea, 1831
+ Unio gouldianus Jay, 1839
+ Unio (s.s.) mytiloides Swainson, 1840
+ Unio obliqua Ferussac, 1835
+ Unio subrotundus Call, 1894
+ Unio globatus Call, 1894 Quadrula (Fusconia [sic]) antrosa (Rafinesque, 1820) = Pleurobema sintoxia Quadrula (Fusconia [sic]) askewi (Marsh, 1896) = Fusconaia askewi Quadrula (Fusconia [sic]) beadleana [sic] (Lea, 1861) = Pleurobema beadleianum
+ Unio chickasawhensis Lea, 1861 Quadrula (Fusconia [sic]) bursa-pastoris (Wright, B.H., 1896) = Fusconaia subrotunda Quadrula (Fusconia [sic]) flava (Rafinesque, 1820) = Fusconaia flava
+ Unio rubiginosus Lea, 1829
+ Unio cerinus Conrad, 1838
+ Unio coccineus Reeve, 1865 Quadrula (Fusconia [sic]) flava (Rafinesque, 1820) = Fusconaia cerina Quadrula (Fusconia [sic]) flava-nasuta Simpson, 1914 = Fusconaia flava
+ Quadrula (sec. Fusconaia) castanea Simpson, 1914 Quadrula (Fusconia [sic]) flava-nasuta Simpson, 1914 = Fusconaia cerina Quadrula (Fusconia [sic]) flava-negata (Lea, 1861) = Fusconaia cerina Quadrula (Fusconia [sic]) flava-parvula (Grier, 1919) = Fusconaia flava Quadrula (Fusconia [sic]) flava-sampsoniana Frierson, 1927 = Fusconaia ozarkensis Quadrula (Fusconia [sic]) glandacea (Lea, 1861) = Fusconaia cerina Quadrula (Fusconia [sic]) hebetata (Conrad, 1854) = Fusconaia flava
+ Unio rubidus Lea, 1861
+ Unio succisus Sowerby, 1866 Quadrula (Fusconia [sic]) hebetata (Conrad, 1854) = Fusconaia cerina Quadrula (Fusconia [sic]) hebetata (Conrad, 1854) = Pustulosa succissa Quadrula (Fusconia [sic]) kirtlandiana (Lea, 1834) = Fusconaia subrotunda Quadrula (Fusconia [sic]) lananensis Frierson, 1901 = Fusconaia lananensis Quadrula (Fusconia [sic]) ozarkensis (Call, 1887) = Fusconaia ozarkensis Quadrula (Fusconia [sic]) pannosa (Simpson, 1900) = Fusconaia ozarkensis Quadrula (Fusconia [sic]) pilaris (Lea, 1840) = Fusconaia subrotunda
+ Unio lesueurianus Lea, 1840
+ Unio globatus Lea, 1871
+ Quadrula beauchampii Marsh, 1902
+ Quadrula andrewsae Marsh, 1902
+ Quadrula andrewsii Marsh, 1902
+ Quadrula flexuosa Simpson, 1900 Quadrula (Fusconia [sic]) rubidula Frierson, 1905 = Fusconaia cerina Quadrula (Fusconia [sic]) subelliptica (Simpson, 1900) = Fusconaia ozarkensis Quadrula (Fusconia [sic]) subrotunda (Lea, 1831) = Fusconaia subrotunda
+ Obliquaria (Sintoxia) sintoxia Rafinesque, 1820
+ Obliquaria (Aximedia) venus Rafinesque, 1831
+ Unio politus Conrad, 1837
+ Unio ebenus Call, 1894
+ Unio crassus Barnes, 1823 Quadrula (Fusconia [sic]) subrotunda (Lea, 1831) = Elliptio crassidens Quadrula (Fusconia [sic]) subrotunda (Lea, 1831) = Amblema plicata Quadrula (Fusconia [sic]) subrotunda (Lea, 1831) = Pleurobema sintoxia Quadrula (Fusconia [sic]) succissa (Lea, 1852) = Pustulosa succissa
+ Unio cacao Lea, 1859
+ Unio infucatus Conrad, 1834 Quadrula (Fusconia [sic]) succissa (Lea, 1852) = Pustulosa infucata Quadrula (Fusconia [sic]) succissa-wrightii Simpson, 1914 = Pustulosa succissa Quadrula (Fusconia [sic]) undata (Barnes, 1823) = Fusconaia flava
+ Obliquaria (Sintoxia) lateralis Rafinesque, 1820
+ Unio triangularis Küster, 1852 Quadrula (Fusconia [sic]) undata-chunii (Lea, 1862) = Fusconaia chunii Quadrula (Fusconia [sic]) undata-selecta (Wheeler, 1914) = Fusconaia flava Quadrula (Fusconia [sic]) undata-trigona (Lea, 1831) = Fusconaia flava Quadrula (Fusconia [sic]) undata-trigonoides (Frierson, 1916) = Fusconaia flava Quadrula (Fusconia [sic]) utterbackii (Frierson, 1916) = Fusconaia ozarkensis Quadrula (Obliquata) catilla (Conrad, 1836) = Pleurobema sintoxia
+ Unio coccineus Lea, 1838
+ Unio solidus Lea, 1838
+ Unio fulgidus Lea, 1845
+ Obliquaria (Scalenaria) triangularis Rafinesque, 1820 Quadrula (Obliquata) coccinea (Conrad, 1836) = Unio crassus
+ Obliquaria rubra Rafinesque, 1820
+ Unio rubens Menke, 1828 Quadrula (Obliquata) coccinea (Conrad, 1836) = Pleurobema sintoxia Quadrula (Obliquata) coccinea-cunea (Conrad, 1838) = Pleurobema sintoxia Quadrula (Obliquata) coccinea-magnalacustris Simpson, 1914 = Pleurobema sintoxia
+ Quadrula (sec. Fusconaia) coccinea var. paupercula Simpson, 1900 Quadrula (Obliquata) cordata (Rafinesque, 1820) = Pleurobema cordatum
+ Unio obliquus Call, 1900
+ Unio mytiloides Short & Eaton, 1831 Quadrula (Obliquata) cordata-plena (Lea, 1840) = Pleurobema plenum Quadrula (Obliquata) friersoni (Wright, B.H., 1896) = Pleurobema riddellii Quadrula (Obliquata) missouriensis (Marsh, 1901) = Pleurobema sintoxia Quadrula (Obliquata) obliquata (Rafinesque, 1820) = Epioblasma obliquata
+ Unio cardiacea Guérin-Méneville, 1823
+ Unio pyramidatus Lea, 1831
+ Unio mytiloides Conrad, 1836
+ Unio ruber Conrad, 1853 Quadrula (Obliquata) obliquata (Rafinesque, 1820) = Pleurobema sintoxia Quadrula (Obliquata) ridellii [sic] (Lea, 1861) = Pleurobema riddellii Quadrula (Orthonymus) cylindrica (Say, 1817) = Theliderma cylindrica
+ Unio (Eurynia) solenoides Rafinesque, 1820
+ Unio naviformis Lamarck, 1819
+ Unio rugosus Chenu, 1862 Quadrula (Orthonymus) cylindrica-strigillata (Wright, B.H., 1898) = Theliderma cylindrica Quadrula (Orthonymus) intermedia (Conrad, 1836) = Theliderma intermedia Quadrula (Orthonymus) metanevra (Rafinesque, 1820) = Theliderma metanevra
+ Unio nodosus Barnes, 1823 Quadrula (Orthonymus) metanevra-tuberosa (Lea, 1840) = Theliderma metanevra
+ Unio sparsus Lea, 1841
+ Unio kleinianus Küster, 1861 Quadrula (Orthonymus) metanevra-tuberosa (Lea, 1840) = Theliderma sparsa Quadrula (Orthonymus) metanevra-tuberosa (Lea, 1840) = Theliderma intermedia Quadrula (Orthonymus) metanevra-wardii (Lea, 1862) = Theliderma metanevra
+ Unio rugosus Lea, 1852 Quadrula (Orthonymus) stapes (Lea, 1831) = Theliderma stapes Quadrula (Pleuronaia) analogia [sic] (Ortmann, 1917) = Fusconaia cor
+ Unio edgarianus Reeve, 1864 Quadrula (Pleuronaia) argentea (Lea, 1841) = Pleuronaia barnesiana
+ Unio lesleyi Lea, 1860
+ Unio fassinans Lea, 1868
+ Unio decisus Küster, 1852
+ Unio raveneliensis Reeve, 1864 Quadrula (Pleuronaia) argentea (Lea, 1841) = Pleurobema oviforme Quadrula (Pleuronaia) barnesiana (Lea, 1838) = Pleuronaia barnesiana
+ Unio bigbyensis Lea, 1841
+ Unio tellicoensis Lea, 1872
+ Unio estabrookianus Lea, 1845
+ Pleurobema fassinans var. rhomboidea Simpson, 1900 Quadrula (Pleuronaia) cor (Conrad, 1834) = Pleurobema clava
+ Unio bournianus Lea, 1840
+ Unio edgarianus Lea, 1840
+ Unio obuncus Lea, 1871
+ Unio tuscumbiensis Lea, 1871
+ Unio andersonensis Lea, 1872 Quadrula (Pleuronaia) cor (Conrad, 1834) = Fusconaia cuneolus Quadrula (Pleuronaia) cor (Conrad, 1834) = Fusconaia cor Quadrula (Pleuronaia) cuneola (Lea, 1840) = Fusconaia cuneolus
+ Unio clinchensis Lea, 1867 Quadrula (Pleuronaia) cuneola (Lea, 1840) = Pleurobema oviforme Quadrula (Pleuronaia) dolabelloides (Lea, 1840) = Fusconaia cuneolus
+ Unio thorntonii Lea, 1857
+ Unio mundus Reeve, 1864
+ Unio mooresianus Lea, 1857
+ Unio circumactus Lea, 1871
+ Unio recurvatus Lea, 1871
+ Unio flavidus Lea, 1872
+ Unio appressus Lea, 1871 Quadrula (Pleuronaia) dolabelloides (Lea, 1840) = Pleuronaia dolabelloides Quadrula (Pleuronaia) georgiana (Lea, 1841) = Pleurobema georgianum
+ Unio favosus Lea, 1857 Quadrula (Pleuronaia) meridithii [sic] (Lea, 1858) = Pleuronaia barnesiana
+ Unio lenticularis Lea, 1872 Quadrula (Pleuronaia) munda (Lea, 1857) = Pleuronaia barnesiana
+ Unio lawii Lea, 1871
+ Unio bellulus Lea, 1872
+ Unio pattinoides Lea, 1871
+ Unio ornatus Lea, 1861 Quadrula (Pleuronaia) munda (Lea, 1857) = Pleurobema oviforme Quadrula (Pleuronaia) pudica (Lea, 1860) = Pleuronaia barnesiana
+ Unio lyonii Lea, 1865 Quadrula (Pleuronaia) raveneliana (Lea, 1834) = Pleurobema oviforme Quadrula (Pleuronaia) striatissima (Anthony, J.G., 1865) = Pleurobema oviforme
+ Unio brevis Lea, 1872
+ Unio conasaugaensis Lea, 1872
+ Unio swordianus S.H. Wright, 1897
+ Unio planior Lea, 1868 Quadrula (Pleuronaia) tesserulae (Lea, 1862) = Pleurobema oviforme
+ Unio acuens Lea, 1871 Quadrula (Pleuronaia) tumescens (Lea, 1845) = Pleuronaia barnesiana
+ Unio radiosus Lea, 1871
+ Unio crudus Lea, 1871 Quadrula (Pleuronaia) valida (Lea, 1871) = Pleuronaia barnesiana
+ Unio cuneolus Küster, 1861
+ Unio argenteus Sowerby, 1866
+ Unio maculatus Conrad, 1834
+ Pleurobema conradi Vanatta, 1915
+ Pleurobema swordiana Simpson, 1900 Quadrula (Pleuronaia) valida (Lea, 1871) = Fusconaia cuneolus Quadrula (Pleuronaia) valida (Lea, 1871) = Pleuronaia dolabelloides Quadrula (Pleuronaia) valida (Lea, 1871) = Pleurobema oviforme Quadrula (Quincuncina) burkei (Walker, 1922) = Fusconaia burkei Quadrula (Quincuncina) securiformis (Conrad, 1849) = Pustulosa kleiniana
+ Unio infucatus Conrad, 1834
+ Unio liratus Shuttleworth, 1852
+ Unio sparsus Küster, 1861 Quadrula (Quincuncina) securiformis (Conrad, 1849) = Pustulosa infucata Quadrula (Quincuncina) securiformis-kleiniana (Lea, 1853) = Pustulosa kleiniana Quadrula (Quincuncina) vittata Frierson, 1927 = Glebula rotundata
+ Unio rotundatus Reeve, 1865 Quadrula (s.s.) conjugans (Wright, B.H., 1899) = Quadrula verrucosa Quadrula (s.s.) quadrula (Rafinesque, 1820) = Quadrula quadrula
+ Unio rugosus Barnes, 1823
+ Unio lacrymosus Lea, 1828
+ Unio dombeyanus Barnes, 1828
+ Unio asperrimus Lea, 1831
+ Unio quadratus Reeve, 1864
+ Unio lunulatus Pratt, 1876 Quadrula (s.s.) quadrula-apiculata (Say, 1829) = Quadrula quadrula Quadrula (s.s.) quadrula-aspera (Lea, 1831) = Quadrula verrucosa
+ Tritogonia tuberculata var. obesa Simpson, 1900 Quadrula (s.s.) quadrula-aspera (Lea, 1831) = Quadrula quadrula Quadrula (s.s.) quadrula-forsheyi (Lea, 1859) = Quadrula quadrula Quadrula (s.s.) quadrula-fragosa (Conrad, 1836) = Quadrula fragosa Quadrula (s.s.) quadrula-nobilis (Conrad, 1854) = Quadrula nobilis Quadrula (s.s.) quadrula-rumphiana (Lea, 1852) = Quadrula quadrula
+ Unio blandianus Lea, 1857 Quadrula (s.s.) quadrula-speciosa (Lea, 1862) = Quadrula quadrula Quadrula (Striata) striata (Rafinesque, 1820) = Plethobasus cooperianus
+ Unio striatus Reeve, 1864
+ Unio cooperianus Lea, 1834
+ Unio asperatus Sowerby, 1868 Quadrula (Striata) striata (Rafinesque, 1820) = Obovaria subrotunda Quadrula (Striata) striata (Rafinesque, 1820) = Pustulosa kieneriana Quadrula (Tritogonia) verrucosa (Rafinesque, 1820) = Quadrula verrucosa
+ Unio tuberculatus Barnes, 1823
+ Unio (Theliderma) pustulata Swainson, 1840
+ Unio gigas Sowerby, 1867
+ Quadrula parkeri Geiser, 1911 Simpsoniconcha ambigua (Say, 1825) = Simpsonaias ambigua
+ Unio hildrethianus Lea, 1834
+ Alasmidonta dubia Ferussac, 1835 Strophitus (Jugosus) wrightianus Walker, 1901 = Alasmidonta wrightiana Strophitus (Pseudodontoideus) alabamensis (Lea, 1861) = Pseudodontoideus connasaugaensis Strophitus (Pseudodontoideus) gesneri (Lea, 1858) = Pseudodontoideus subvexus Strophitus (Pseudodontoideus) spillmani (Lea, 1858) = Pseudodontoideus subvexus Strophitus (s.s.) connasaugaensis (Lea, 1858) = Pseudodontoideus connasaugaensis Strophitus (s.s.) radiatus (Conrad, 1834) = Strophitus radiatus
+ Margaritana elliottii Lea, 1858
+ Anodonta showalterii Lea, 1860
+ Margaritana elliptica Lea, 1859 Strophitus (s.s.) subvexus (Conrad, 1834) = Pseudodontoideus subvexus
+ Margaritana tombigbeensis Lea, 1862
+ Margaritana columbensis Lea, 1867 Strophitus (s.s.) undulatus (Say, 1817) = Strophitus undulatus
+ Alasmodonta edentula Say, 1829
+ Anodon areolatus Swainson, 1829
+ Anodon unadilla De Kay, 1843
+ Anodonta arkansensis Lea, 1852
+ Anodonta tetragona Lea, 1845
+ Anodon papyracea J.G. Anthony, 1865
+ Anodonta shaefferiana Lea, 1852
+ Anodon quadriplicatus Sowerby, 1870
+ Alasmodon rhombica J.G. Anthony, 1865
+ Anodon annulatus Sowerby, 1867 Strophitus (s.s.) undulatus-ovatus Frierson, 1927 = Strophitus undulatus Strophitus (s.s.) undulatus-pennsylvanicus [sic] (Say, 1817) = Strophitus undulatus Strophitus (s.s.) undulatus-rugosus (Swainson, 1822) = Strophitus undulatus Strophitus (s.s.) undulatus-tennesseensis Frierson, 1927 = Strophitus undulatus Strophitus (s.s.) undulatus-virgatus (Conrad, 1836) = Strophitus undulatus
+ Anodonta wardiana Lea, 1838
+ Anodonta pavonia Lea, 1838 Truncilla cognata (Lea, 1860) Truncilla donaciformis (Lea, 1828)
+ Unio zigzag Lea, 1829
+ Unio nervosa Conrad, 1834
+ Unio ziczac Hanley, 1843 Truncilla macrodon (Lea, 1859) Truncilla truncata Rafinesque, 1820
+ Unio elegans Lea, 1831 Truncilla truncata-vermiculata Rafinesque, 1820 = Truncilla truncata
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