1. Tribe Amblemini Rafinesque, 1820
   1. Genus Amblema Rafinesque, 1820
   2. Genus Plectomerus Conrad, 1853
   3. Genus Reginaia D. C. Campbell & Lydeard, 2012
   4. Genus Bariosta Rafinesque, 1831 accepted as Plectomerus Conrad, 1853
   5. Genus Baryosta Agassiz, 1846 accepted as Bariosta Rafinesque, 1831 accepted as Plectomerus Conrad, 1853 (invalid emendation of Bariosta)
   6. Genus Cokeria W. B. Marshall, 1916 accepted as Amblema Rafinesque, 1820 (junior synonym)
   7. Genus Gonamblus Rafinesque, 1831 accepted as Plectomerus Conrad, 1853
2. Tribe Lampsilini Ihering, 1901
   1. Genus Actinonaias Crosse & P. Fischer, 1894
   2. Genus Arotonaias E. von Martens, 1900
   3. Genus Atlanticoncha C. H. Smith, J. M. Pfeiffer & N. A. Johnson, 2020
   4. Genus Cambarunio Watters, 2018
   5. Genus Cyprogenia Agassiz, 1852
   6. Genus Cyrtonaias Crosse & P. Fischer, 1894
   7. Genus Delphinonaias Crosse & P. Fischer, 1894
   8. Genus Disconaias Crosse & P. Fischer, 1894
   9. Genus Dromus C. T. Simpson, 1900
   10. Genus Ellipsaria Rafinesque, 1820
   11. Genus Epioblasma Rafinesque, 1831
   12. Genus Friersonia Ortmann, 1912
   13. Genus Glebula Conrad, 1853
   14. Genus Hamiota Roe & Hartfield, 2005
   15. Genus Lampsilis Rafinesque, 1820
   16. Genus Leaunio Watters, 2018
   17. Genus Lemiox Rafinesque, 1831
   18. Genus Lenelliptio C. M. Kolesnikov, 1980 †
   19. Genus Ligumia Swainson, 1840
   20. Genus Medionidus C. T. Simpson, 1900
   21. Genus Obliquaria Rafinesque, 1820
   22. Genus Obovaria Rafinesque, 1819
   23. Genus Ortmanniana Frierson, 1927
   24. Genus Pachynaias Crosse & P. Fischer, 1894
   25. Genus Paetulunio Watters, 2018
   26. Genus Potamilus Rafinesque, 1818
   27. Genus Ptychobranchus C. T. Simpson, 1900
   28. Genus Sagittunio Watters, 2018
   29. Genus Toxolasma Rafinesque, 1831
   30. Genus Truncilla Rafinesque, 1819
   31. Genus Venustaconcha Frierson, 1927
   32. Genus Villosa Frierson, 1927
   33. Genus Aeglia Swainson, 1840 accepted as Lampsilis Rafinesque, 1820 (unaccepted > junior objective synonym)
   34. Genus Amygdalonaias Crosse & P. Fischer, 1894 accepted as Truncilla Rafinesque, 1819
   35. Genus Amygdalonajas Crosse & P. Fischer, 1894 accepted as Truncilla Rafinesque, 1819
   36. Genus Capsaeformis Frierson, 1927 accepted as Epioblasma Rafinesque, 1831
   37. Genus Carunculina C. T. Simpson, 1898 accepted as Toxolasma Rafinesque, 1831 (unaccepted > junior subjective synonym)
   38. Genus Conchodromus F. Haas, 1930 accepted as Dromus C. T. Simpson, 1900 (junior synonym)
   39. Genus Conradilla Ortmann, 1921 accepted as Lemiox Rafinesque, 1831
   40. Genus Corunculina C. T. Simpson, 1898 accepted as Carunculina C. T. Simpson, 1898 accepted as Toxolasma Rafinesque, 1831 (unaccepted > incorrect original spelling, corrected in errata)
   41. Genus Crenodonta Schlüter, 1838 accepted as Ellipsaria Rafinesque, 1820
   42. Genus Dromas Lindahl, 1906 accepted as Dromus C. T. Simpson, 1900
   43. Genus Dysnomia Agassiz, 1852 accepted as Epioblasma Rafinesque, 1831
   44. Genus Lampsida [sic] accepted as Lampsilis Rafinesque, 1820 (misspelling of original genus name, Lampsilis Rafinesque, 1820)
   45. Genus Lasmonos Rafinesque, 1831 accepted as Potamilus Rafinesque, 1818
   46. Genus Lastena Rafinesque, 1820 accepted as Potamilus Rafinesque, 1818
   47. Genus Leptodea Rafinesque, 1820 accepted as Potamilus Rafinesque, 1818
   48. Genus Limnadea Agassiz, 1846 accepted as Potamilus Rafinesque, 1818
   49. Genus Luteacarnea Frierson, 1927 accepted as Obovaria Rafinesque, 1819
   50. Genus Mesonaias Crosse & P. Fischer, 1894 accepted as Cyrtonaias Crosse & P. Fischer, 1894
   51. Genus Metaptera Rafinesque, 1820 accepted as Potamilus Rafinesque, 1818
   52. Genus Micromya Agassiz, 1852 accepted as Paetulunio Watters, 2018 (invalid: junior homonym of Micromya Rondani, 1840)
   53. Genus Monelagmus Agassiz, 1846 accepted as Leptodea Rafinesque, 1820 accepted as Potamilus Rafinesque, 1818
   54. Genus Monelasmus Agassiz, 1846 accepted as Potamilus Rafinesque, 1818
   55. Genus Naidea Swainson, 1840 accepted as Potamilus Rafinesque, 1818
   56. Genus Nedionidus [sic] accepted as Medionidus C. T. Simpson, 1900 (unaccepted > misspelling)
   57. Genus Oblicaria Rafinesque, 1820 accepted as Obliquaria Rafinesque, 1820
   58. Genus Obliquata Frierson, 1927 accepted as Epioblasma Rafinesque, 1831
   59. Genus Paraptera Ortmann, 1911 accepted as Potamilus Rafinesque, 1818
   60. Genus Pareptera Ortmann, 1911 accepted as Leptodea Rafinesque, 1820 accepted as Potamilus Rafinesque, 1818
   61. Genus Penita Frierson, 1927 accepted as Epioblasma Rafinesque, 1831
   62. Genus Pilea C. T. Simpson, 1900 accepted as Epioblasma Rafinesque, 1831 (junior subjective synonym)
   63. Genus Plagiola Rafinesque, 1819 accepted as Ptychobranchus C. T. Simpson, 1900
   64. Genus Plagiolopsis Thiele, 1934 accepted as Ellipsaria Rafinesque, 1820
   65. Genus Proptera Rafinesque, 1819 accepted as Potamilus Rafinesque, 1818
   66. Genus Pseudoon C. T. Simpson, 1900 accepted as Obovaria Rafinesque, 1819 (unaccepted > junior subjective synonym)
   67. Genus Rotundaria Rafinesque, 1820 accepted as Obovaria Rafinesque, 1819
   68. Genus Scalenilla Ortmann & B. Walker, 1922 accepted as Epioblasma Rafinesque, 1831 (unaccepted > junior subjective synonym)
   69. Genus Simpsonunio Starobogatov, 1970 accepted as Lampsilis Rafinesque, 1820
   70. Genus Stenelasma Herrmannsen, 1849 accepted as Potamilus Rafinesque, 1818
   71. Genus Striata Frierson, 1927 accepted as Obovaria Rafinesque, 1819
   72. Genus Subtentus Frierson, 1927 accepted as Ptychobranchus C. T. Simpson, 1900
   73. Genus Symphynota I. Lea, 1829 accepted as Potamilus Rafinesque, 1818 (unaccepted > junior objective synonym)
   74. Genus Torulosa Frierson, 1927 accepted as Epioblasma Rafinesque, 1831
   75. Genus Toxelasma Agassiz, 1846 accepted as Toxolasma Rafinesque, 1831 (emendation)
   76. Genus Troncilla Rafinesque, 1819 accepted as Truncilla Rafinesque, 1819
   77. Genus Truncillopsis Ortmann & B. Walker, 1922 accepted as Epioblasma Rafinesque, 1831 (unaccepted > junior subjective synonym)
3. Tribe Pleurobemini Hannibal, 1912
   1. Genus Elliptio Rafinesque, 1819
   2. Genus Elliptoideus Frierson, 1927
   3. Genus Eurynia Rafinesque, 1819
   4. Genus Fusconaia C. T. Simpson, 1900
   5. Genus Hemistena Rafinesque, 1820
   6. Genus Parvaspina Perkins, N. A. Johnson & Gangloff, 2017
   7. Genus Plethobasus C. T. Simpson, 1900
   8. Genus Pleurobema Rafinesque, 1819
   9. Genus Pleuronaia Frierson, 1927
   10. Genus Aximedia Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   11. Genus Canthyria Swainson, 1840 accepted as Elliptio Rafinesque, 1819
   12. Genus Elliptoidens Frierson, 1927 accepted as Elliptoideus Frierson, 1927
   13. Genus Ensinaia Starobogatov, 1970 accepted as Elliptio Rafinesque, 1819
   14. Genus Fuscnoaia C. T. Simpson, 1900 accepted as Fusconaia C. T. Simpson, 1900 (incorrect subsequent spelling)
   15. Genus Fusconaja C. T. Simpson, 1900 accepted as Fusconaia C. T. Simpson, 1900 (incorrect subsequent spelling)
   16. Genus Fusconala C. T. Simpson, 1900 accepted as Fusconaia C. T. Simpson, 1900 (incorrect subsequent spelling)
   17. Genus Fusconaria accepted as Fusconaia C. T. Simpson, 1900 (incorrect subsequent spelling)
   18. Genus Fusconia [sic] accepted as Fusconaia C. T. Simpson, 1900 (incorrect subsequent spelling)
   19. Genus Hemilastena Agassiz, 1852 accepted as Hemistena Rafinesque, 1820 (unjustified emendation of Hemistena)
   20. Genus Levingtonia [sic] accepted as Lexingtonia Ortmann, 1914 accepted as Fusconaia C. T. Simpson, 1900 (incorrect subsequent spelling)
   21. Genus Lexingtonia Ortmann, 1914 accepted as Fusconaia C. T. Simpson, 1900 (junior synonym)
   22. Genus Lintoxia Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   23. Genus Lyntoxia Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   24. Genus Odatelia Rafinesque, 1832 accepted as Hemistena Rafinesque, 1820
   25. Genus Quincuncina Ortmann, 1922 accepted as Fusconaia C. T. Simpson, 1900 (unaccepted > junior subjective synonym)
   26. Genus Sayunio De Gregorio, 1914 accepted as Hemistena Rafinesque, 1820
   27. Genus Scalenaria Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   28. Genus Scatenaria Rafinesque, 1820 accepted as Scalenaria Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819 (alternative original spelling)
   29. Genus Sintoina Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   30. Genus Sintoxia Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   31. Genus Syntonia Rafinesque, 1820 accepted as Pleurobema Rafinesque, 1819
   32. Genus Syntoxia Agassiz, 1846 accepted as Pleurobema Rafinesque, 1819 (emendation)
4. Tribe Popenaiadini Heard & Guckert, 1971
   1. Genus Barynaias Crosse & P. Fischer, 1894
   2. Genus Martensnaias Frierson, 1927
   3. Genus Micronaias C. T. Simpson, 1900
   4. Genus Nephritica Frierson, 1927
   5. Genus Nephronaias Crosse & P. Fischer, 1894
   6. Genus Popenaias Frierson, 1927
   7. Genus Psoronaias Crosse & P. Fischer, 1894
   8. Genus Psorula F. Haas, 1930
   9. Genus Reticulatus Frierson, 1927
   10. Genus Sphenonaias Crosse & P. Fischer, 1894
   11. Genus Lapidosus C. T. Simpson, 1900 accepted as Disconaias Crosse & P. Fischer, 1894
   12. Genus Perpenaias A. E. Salisbury, 1948 accepted as Popenaias Frierson, 1927 (error for Popenaias Frierson, 1927)
   13. Genus Popenais Frierson, 1927 accepted as Popenaias Frierson, 1927 (incorrect subsequent spelling)
5. Tribe Quadrulini Ihering, 1901
   1. Genus Cyclonaias Pilsbry, 1922
   2. Genus Eonaias W. B. Marshall, 1929 †
   3. Genus Megalonaias Utterback, 1915
   4. Genus Proparreysia Pilsbry, 1921 †
   5. Genus Protamblema Modell, 1957 †
   6. Genus Quadrula Rafinesque, 1820
   7. Genus Theliderma Swainson, 1840
   8. Genus Tritogonia Agassiz, 1852
   9. Genus Uniomerus Conrad, 1853
   10. Genus Amphinaias Crosse & P. Fischer, 1894 accepted as Quadrula Rafinesque, 1820
   11. Genus Bullata Frierson, 1927 accepted as Cyclonaias Pilsbry, 1922
   12. Genus Magalonaias Utterback, 1915 accepted as Megalonaias Utterback, 1915
   13. Genus Orthonymus Agassiz, 1852 accepted as Theliderma Swainson, 1840
   14. Genus Pustulosa Frierson, 1927 accepted as Cyclonaias Pilsbry, 1922
   15. Genus Quaduila Rafinesque, 1820 accepted as Quadrula Rafinesque, 1820
   16. Genus Telederma Swainson, 1840 accepted as Theliderma Swainson, 1840
   17. Genus Thelyderma Agassiz, 1846 accepted as Theliderma Swainson, 1840
   18. Genus Tritigonia Agassiz, 1852 accepted as Tritogonia Agassiz, 1852 (incorrect spelling)
6. Genus Symphinota [sic] accepted as Symphynota I. Lea, 1829 accepted as Potamilus Rafinesque, 1818 (unaccepted > misspelling)
7. Genus Symphonota [sic] accepted as Symphynota I. Lea, 1829 accepted as Potamilus Rafinesque, 1818 (unaccepted > misspelling)

 The webpage text is licensed under a Creative Commons Attribution 4.0 License