Actinonaias carinata (Barnes, 1823) accepted as Actinonaias ligamentina (Lamarck, 1819) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias carinata calendis (Rafinesque, 1831) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias carinata carinata (Barnes, 1823) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias carinata gibba (C. T. Simpson, 1900) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias carinata upsonii (W. A. Marsh, 1887) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias gibba (C. T. Simpson, 1900) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias ligamentina (Lamarck, 1819) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias ligamentina carinata (Barnes, 1823) accepted as Ortmanniana ligamentina (Lamarck, 1819) (basis of record)
Actinonaias pectorosa (Conrad, 1834) accepted as Ortmanniana pectorosa (Conrad, 1834) accepted as Lampsilis pectorosa (Conrad, 1834) (basis of record)
Aeglia Swainson, 1840 accepted as Lampsilis Rafinesque, 1820 (basis of record)
Alasmidens A. H. Clarke, 1981 accepted as Alasmidonta (Alasmidens) A. H. Clarke, 1981 represented as Alasmidonta Say, 1818 (basis of record)
Alasmidonta (Alasmidens) mccordi (Athearn, 1964) accepted as Alasmidonta mccordi Athearn, 1964 (basis of record)
Alasmidonta (Bullella) triangulata (I. Lea, 1858) accepted as Alasmidonta triangulata (I. Lea, 1858) (basis of record)
Alasmidonta (Decurambis) marginata (Say, 1818) accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta (Decurambis) marginata truncata (B. H. Wright, 1898) accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta (Decurambis) marginata variabilis F. C. Baker, 1928 accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta (Pegias) fabula (I. Lea, 1838) represented as Pegias fabula (I. Lea, 1838) (basis of record)
Alasmidonta (Pressodonta) calceola (I. Lea, 1830) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta (Pressodonta) calceola minor (I. Lea, 1845) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta (Pressodonta) diversa (Conrad, 1856) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta (Pressodonta) etowahensis (I. Lea, 1858) accepted as Lasmigona etowaensis (Conrad, 1849) (basis of record)
Alasmidonta (Pressodonta) georgiana (I. Lea, 1859) accepted as Lasmigona etowaensis (Conrad, 1849) (basis of record)
Alasmidonta (Pressodonta) holstonia (I. Lea, 1838) accepted as Lasmigona holstonia (I. Lea, 1838) (basis of record)
Alasmidonta (Pressodonta) minor (I. Lea, 1845) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta (Pressodonta) viridis (Rafinesque, 1820) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta (Rugifera) marginata (Say, 1818) accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta (Rugifera) truncata (B. H. Wright, 1898) accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta (Sulcularia) badia (Rafinesque, 1831) accepted as Lasmigona holstonia (I. Lea, 1838) (basis of record)
Alasmidonta (Sulcularia) diversa (Conrad, 1856) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta badia (Rafinesque, 1831) accepted as Lasmigona holstonia (I. Lea, 1838) (basis of record)
Alasmidonta badium (Rafinesque, 1831) accepted as Lasmigona holstonia (I. Lea, 1838) (basis of record)
Alasmidonta calceolus (I. Lea, 1830) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta calceolus danielsi F. C. Baker, 1928 accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta calceolus magnalacustris F. C. Baker, 1928 accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta calceolus minor (I. Lea, 1845) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta costata Rafinesque, 1820 accepted as Lasmigona costata (Rafinesque, 1820) (basis of record)
Alasmidonta deltoidea (I. Lea, 1838) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta elliottii (I. Lea, 1858) accepted as Anodontoides radiatus (Conrad, 1834) accepted as Strophitus radiatus (Conrad, 1834) (basis of record)
Alasmidonta etowahensis (I. Lea, 1858) accepted as Lasmigona etowaensis (Conrad, 1849) (basis of record)
Alasmidonta fabula (I. Lea, 1838) accepted as Pegias fabula (I. Lea, 1838) (basis of record)
Alasmidonta georgiana (I. Lea, 1859) accepted as Lasmigona etowaensis (Conrad, 1849) (basis of record)
Alasmidonta hians (Rafinesque, 1831) accepted as Lasmigona costata (Rafinesque, 1820) (basis of record)
Alasmidonta holstonia (I. Lea, 1838) accepted as Lasmigona holstonia (I. Lea, 1838) (basis of record)
Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta marginata susquehannae Ortmann, 1919 accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta mccordi Athearn, 1964 (basis of record)
Alasmidonta minor (I. Lea, 1845) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmidonta papyraceum (Rafinesque, 1831) accepted as Lasmigona costata (Rafinesque, 1820) (basis of record)
Alasmidonta scriptum (Rafinesque, 1831) accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta triangulata (I. Lea, 1858) (basis of record)
Alasmidonta truncata (B. H. Wright, 1898) accepted as Alasmidonta marginata Say, 1818 (basis of record)
Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasminota Ortmann, 1914 accepted as Lasmigona Rafinesque, 1831 (basis of record)
Alasmodon rhombica J. G. Anthony, 1865 accepted as Strophitus undulatus (Say, 1817) (basis of record)
Alasmodonta [sic] accepted as Alasmidonta Say, 1818 (basis of record)
Alasmodonta (Pegias) fabula (I. Lea, 1838) accepted as Pegias fabula (I. Lea, 1838) (basis of record)
Alasmodonta (Pressodonta) calceola (I. Lea, 1830) accepted as Alasmidonta viridis (Rafinesque, 1820) (basis of record)
Alasmodonta ambigua Say, 1825 accepted as Simpsonaias ambigua (Say, 1825) (basis of record)
Alasmodonta complanata Barnes, 1823 accepted as Lasmigona complanata (Barnes, 1823) (basis of record)
Alasmodonta confragosa Say, 1829 accepted as Arcidens confragosus (Say, 1829) (basis of record)
Alasmodonta edentula Say, 1829 accepted as Strophitus undulatus (Say, 1817) (basis of record)
Alasmodonta impressa J. G. Anthony, 1865 accepted as Lasmigona holstonia (I. Lea, 1838) (basis of record)
Alasmodonta radiata Conrad, 1834 accepted as Anodontoides radiatus (Conrad, 1834) accepted as Strophitus radiatus (Conrad, 1834) (basis of record)
Alasmodonta rugosa Barnes, 1823 accepted as Lasmigona costata (Rafinesque, 1820) (basis of record)
Amblasmodon Rafinesque, 1831 accepted as Lasmigona Rafinesque, 1831 (basis of record)
Amblasmodon hians Rafinesque, 1831 accepted as Lasmigona costata (Rafinesque, 1820) (basis of record)
Amblema Rafinesque, 1820 (basis of record)
Amblema (Amblema) plicata elliottii (I. Lea, 1857) accepted as Amblema elliottii (I. Lea, 1857) (basis of record)
Amblema (Amblema) plicata perplicata (Conrad, 1841) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema (Megalonaias) gigantea (Barnes, 1823) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema (Megalonaias) gigantea boykiniana (I. Lea, 1840) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema (Megalonaias) gigantea gigantea (Barnes, 1823) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema (Megalonaias) heros (Say, 1829) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema (Megalonaias) triumphans (B. H. Wright, 1898) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema (Plectomerus) dombeyana (Valenciennes, 1827) accepted as Plectomerus dombeyanus (Valenciennes, 1827) (basis of record)
Amblema boykiniana (I. Lea, 1840) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema costata Rafinesque, 1820 accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema costata elliottii (I. Lea, 1857) accepted as Amblema elliottii (I. Lea, 1857) (basis of record)
Amblema dombeyana (Valenciennes, 1827) accepted as Plectomerus dombeyanus (Valenciennes, 1827) (basis of record)
Amblema elliottii (I. Lea, 1857) (basis of record)
Amblema gibbosa Rafinesque, 1820 accepted as Epioblasma torulosa (Rafinesque, 1820) (basis of record)
Amblema gibbosa difformis Rafinesque, 1820 accepted as Epioblasma torulosa (Rafinesque, 1820) (basis of record)
Amblema gibbosa olivacea Rafinesque, 1820 accepted as Epioblasma torulosa (Rafinesque, 1820) (basis of record)
Amblema gibbosa radiata Rafinesque, 1820 accepted as Epioblasma torulosa (Rafinesque, 1820) (basis of record)
Amblema gigantea (Barnes, 1823) accepted as Megalonaias nervosa (Rafinesque, 1820) (basis of record)
Amblema olivaria Rafinesque, 1820 accepted as Obovaria olivaria (Rafinesque, 1820) (basis of record)
Amblema olivaria dilatata Rafinesque, 1820 accepted as Obovaria olivaria (Rafinesque, 1820) (basis of record)
Amblema olivaria fasciolaris Rafinesque, 1820 accepted as Obovaria olivaria (Rafinesque, 1820) (basis of record)
Amblema perplicata (Conrad, 1841) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema perplicata pauciplicatus (I. Lea, 1872) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema perplicata perplicata (Conrad, 1841) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema perplicatus elliottii (I. Lea, 1857) accepted as Amblema elliottii (I. Lea, 1857) (basis of record)
Amblema peruviana (Lamarck, 1819) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema plicata (Say, 1817) (basis of record)
Amblema plicata costata (Rafinesque, 1820) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema plicata elliottii (I. Lea, 1857) accepted as Amblema elliottii (I. Lea, 1857) (basis of record)
Amblema plicata hippopaea (I. Lea, 1845) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema plicata hippopoea (I. Lea, 1845) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema plicata perplicata (Conrad, 1841) accepted as Amblema plicata (Say, 1817) (basis of record)
Amblema plicata pilsbryi (W. A. Marsh, 1891) accepted as Amblema plicata (Say, 1817) (basis of record)

 Status

 for Unio granulatus I. Lea, 1861

Previously considered a synonym of Toxolasma paulum I. Lea, 1840; treated as a taxon inquirendum by Williams et al. ... [details]