• Diplodonta Bronn, 1831
• Diplodonta (Diplodonta) Bronn, 1831 represented as Diplodonta Bronn, 1831
• Diplodonta (Diplodonta) brocchii (Deshayes, 1850) represented as Diplodonta brocchii (Deshayes, 1850)
• Diplodonta (Diplodonta) dautzenbergi Thiele, 1931 represented as Diplodonta dautzenbergi Thiele, 1931
• Diplodonta (Diplodonta) enigmatica Cosel, 1995 represented as Diplodonta enigmatica Cosel, 1995
• Diplodonta (Diplodonta) lateralis E. A. Smith, 1876 represented as Diplodonta lateralis E. A. Smith, 1876
• Diplodonta (Diplodonta) mareana Weisbord, 1964 † represented as Diplodonta mareana Weisbord, 1964 †
• Diplodonta (Diplodonta) petropolitana Stenzel, 1957 † represented as Diplodonta petropolitana Stenzel, 1957 †
• Diplodonta (Diplodonta) planissima Kilburn, 1996 represented as Diplodonta planissima Kilburn, 1996
• Diplodonta (Diplodonta) rotundata (Montagu, 1803) represented as Diplodonta rotundata (Montagu, 1803)
• Diplodonta (Diplodonta) undata Cosel, 1995 represented as Diplodonta undata Cosel, 1995
• Diplodonta (Felania) Récluz, 1851 represented as Diplodonta Bronn, 1831
• Diplodonta (Felania) annandalei Preston, 1914 represented as Diplodonta annandalei Preston, 1914
• Diplodonta (Felania) chilkaensis Preston, 1914 accepted as Felaniella cuneata (Spengler, 1798)
• Diplodonta (Felania) circularis Dunker, 1846 represented as Diplodonta circularis Dunker, 1846 accepted as Diplodonta diaphana (Gmelin, 1791)
• Diplodonta (Felania) diaphana (Gmelin, 1791) represented as Diplodonta diaphana (Gmelin, 1791)
• Diplodonta (Felania) knudseni Nicklès, 1955 represented as Diplodonta knudseni Nicklès, 1955
• Diplodonta (Felania) nizeryi Cosel & Gofas, 2018 represented as Diplodonta nizeryi Cosel & Gofas, 2018
• Diplodonta (Felania) ovalis Preston, 1914 accepted as Felaniella cuneata (Spengler, 1798)
• Diplodonta (Felaniella) Dall, 1899 accepted as Felaniella Dall, 1899
• Diplodonta (Felaniella) artemidis Dall, 1909 accepted as Diplodonta cornea (Reeve, 1850)
• Diplodonta (Microstagon) Cossmann, 1896 represented as Diplodonta Bronn, 1831
• Diplodonta (Microstagon) obliqua R. A. Philippi, 1846 accepted as Microstagon obliquum (R. A. Philippi, 1846)
• Diplodonta (Phlyctiderma) Dall, 1899 accepted as Phlyctiderma Dall, 1899
• Diplodonta (Phlyctiderma) caelata (Reeve, 1850) represented as Phlyctiderma caelatum (Reeve, 1850)
• Diplodonta (Phlyctiderma) lampra J. A. Gardner, 1936 † (uncertain > unassessed)
• Diplodonta (Phlyctiderma) notata Dall & C. T. Simpson, 1901 accepted as Diplodonta notata Dall & C. T. Simpson, 1901
• Diplodonta (Phlyctiderma) puncturella (Dall, 1899) † accepted as Phlyctiderma puncturella (Dall, 1899) †
• Diplodonta (Phlyctiderma) semiaspera R. A. Philippi, 1836 represented as Phlyctiderma semiasperum (R. A. Philippi, 1836)
• Diplodonta (Phlyctiderma) semirugosa Dall, 1899 represented as Phlyctiderma semirugosum (Dall, 1899)
• Diplodonta (Phlyctiderma) subreticulata Jaeckel & Thiele, 1931 accepted as Lajonkairia elegans (H. Adams, 1870)
• Diplodonta (Sphaerella) Conrad, 1838 † accepted as Diplodonta Bronn, 1831
• Diplodonta (Sphaerella) rehderi van Regteren Altena, 1968 accepted as Timothynus rehderi (van Regteren Altena, 1968)
• Diplodonta (Sphaerella) subvexa (Conrad, 1838) accepted as Diplodonta subvexa (Conrad, 1838) †
• Diplodonta (Timothynus) G. D. Harris & K. van W. Palmer, 1946 accepted as Timothynus G. D. Harris & K. van W. Palmer, 1946
• Diplodonta (Timothynus) holosphaera Melvill, 1899 accepted as Timothynus holosphaerus (Melvill, 1899)
• Diplodonta (Timothynus) inezensis (Hertlein & A. M. Strong, 1947) accepted as Timothynus inezensis (Hertlein & A. M. Strong, 1947)
• Diplodonta (Timothynus) pinnaculum Kilburn, 1996 accepted as Timothynus pinnaculum (Kilburn, 1996)
• Diplodonta (Timothynus) pseudoglobosa Kilburn, 1996 accepted as Timothynus pseudoglobosus (Kilburn, 1996)
• Diplodonta (Zemysina) H. J. Finlay, 1926 accepted as Zemysina H. J. Finlay, 1926
• Diplodonta (Zemysina) brocchii (Deshayes, 1850) accepted as Diplodonta brocchii (Deshayes, 1850)
• Diplodonta (Zemysina) decipiens Deshayes, 1857 † accepted as Zemysina decipiens (Deshayes, 1857) †
• Diplodonta (Zemysina) densisculpta Marwick, 1960 accepted as Zemysina densisculpta (Marwick, 1960) †
• Diplodonta (Zemysina) globus (H. J. Finlay, 1926) accepted as Zemysina globus (H. J. Finlay, 1926)
• Diplodonta (Zemysina) guyerdeti Deshayes, 1866 † accepted as Zemysina guyerdeti (Deshayes, 1866) †
• Diplodonta (Zemysina) ingens Deshayes, 1857 † accepted as Zemysina ingens (Deshayes, 1857) †
• Diplodonta (Zemysina) lamberti Deshayes, 1857 † accepted as Zemysina lamberti (Deshayes, 1857) †
• Diplodonta (Zemysina) striatina Deshayes, 1857 † accepted as Zemysina striatina (Deshayes, 1857) †
• Diplodonta (Zemysina) striatula (H. J. Finlay, 1926) accepted as Zemysina striatula (H. J. Finlay, 1926)
• Diplodonta (Zemysina) tasmanica Tenison Woods, 1876 accepted as Diplodonta tasmanica Tenison Woods, 1876 accepted as Zemysia tasmanica (Tenison Woods, 1877)
• Diplodonta acclinis (Conrad, 1832) † (uncertain > unassessed)
• Diplodonta adangmarum Cox, 1952 †
• Diplodonta africana Bartsch, 1915 accepted as Moerella canonica (A. E. Salisbury, 1934)
• Diplodonta agulhasensis Jaeckel & Thiele, 1931 accepted as Felaniella dolabrata (A. Gould, 1861)
• Diplodonta aizyensis Deshayes, 1857 † accepted as Phlyctiderma aizyense (Deshayes, 1857) †
• Diplodonta aleutica Dall, 1901
• Diplodonta almo Bartsch, 1915 accepted as Salmacoma litoralis (Krauss, 1848)
• Diplodonta amboinensis E. A. Smith, 1885
• Diplodonta annandalei Preston, 1914 (uncertain > taxon inquirendum)
• Diplodonta apicalis R. A. Philippi, 1836 accepted as Diplodonta trigona (Scacchi, 1835) accepted as Microstagon trigonum (Scacchi, 1835)
• Diplodonta artemidis Dall, 1909 accepted as Diplodonta cornea (Reeve, 1850)
• Diplodonta auriculata G. B. Sowerby III, 1905 accepted as Diplodonta rotundata (Montagu, 1803)
• Diplodonta auriculata G. B. Sowerby III, 1905 sensu Fischer-Piette & Nicklès, 1946 accepted as Diplodonta jousseaumei E. Lamy, 1921 accepted as Lamysia jousseaumei (E. Lamy, 1921)
• Diplodonta auversiensis Deshayes, 1857 †
• Diplodonta balcombensis Pritchard, 1906 †
• Diplodonta barhampurensis Preston, 1915 (uncertain > unassessed)
• Diplodonta barleei Jeffreys, 1858 accepted as Diplodonta rotundata (Montagu, 1803)
• Diplodonta berghi Dautzenberg & H. Fischer, 1897 accepted as Diplodonta rotundata (Montagu, 1803)
• Diplodonta bidens Deshayes, 1857 † accepted as Zemysia bidens (Deshayes, 1857) †
• Diplodonta biimpressa Deshayes, 1857 † accepted as Felaniella biimpressa (Deshayes, 1857) †
• Diplodonta bogii van Aartsen, 2004 accepted as Transkeia bogii (van Aartsen, 2004)
• Diplodonta brasiliensis Mittre, 1850 accepted as Diplodonta punctata (Say, 1822)
• Diplodonta brocchii (Deshayes, 1850)
• Diplodonta brocchii var. rotundella Sacco, 1901 † (uncertain > unassessed)
• Diplodonta bullata Dunker, 1865 accepted as Transkeia bullata (Dunker, 1865)
• Diplodonta caelata (Reeve, 1850) accepted as Phlyctiderma caelatum (Reeve, 1850)
• Diplodonta caloosaensis Dall, 1900 † (uncertain > unassessed)
• Diplodonta candeana (A. d'Orbigny, 1853) accepted as Felaniella candeana (A. d'Orbigny, 1853)
• Diplodonta chilkaensis Preston, 1914 (uncertain > taxon inquirendum)
• Diplodonta circularis Dunker, 1846 accepted as Diplodonta diaphana (Gmelin, 1791)
• Diplodonta coelata Deshayes, 1857 †
• Diplodonta consors Deshayes, 1857 † accepted as Bruetia consors (Deshayes, 1857) †
• Diplodonta conspicua E. A. Smith, 1885 accepted as Felaniella conspicua (E. A. Smith, 1885) accepted as Neodiplodonta conspicua (E. A. Smith, 1885)
• Diplodonta cornea (Reeve, 1850)
• Diplodonta corpulenta E. A. Smith, 1885 accepted as Transkeia corpulenta (E. A. Smith, 1885)
• Diplodonta corpusculum P. Oppenheim, 1903 †
• Diplodonta crebristriata G. B. Sowerby III, 1905 accepted as Felaniella cuneata (Spengler, 1798)
• Diplodonta dalli Dickerson, 1917 † (uncertain > unassessed)
• Diplodonta danieli Klein, 1967
• Diplodonta dautzenbergi Thiele, 1931
• Diplodonta davisi Dailey & Popenoe, 1966 †
• Diplodonta decipiens Deshayes, 1857 † accepted as Zemysina decipiens (Deshayes, 1857) †
• Diplodonta dedocoris Pilsbry & C. W. Johnson, 1917 † (uncertain > unassessed)
• Diplodonta densisculpta Marwick, 1960 † accepted as Zemysina densisculpta (Marwick, 1960) †
• Diplodonta diaphana (Gmelin, 1791)
• Diplodonta dilatata R. A. Philippi, 1836 accepted as Diplodonta rotundata (Montagu, 1803)
• Diplodonta discrepans P. P. Carpenter, 1857 accepted as Zemysina orbella (A. Gould, 1851)
• Diplodonta dubia Prashad, 1932 accepted as Transkeia dubia (Prashad, 1932)
• Diplodonta duplicata Deshayes, 1857 † accepted as Zemysia duplicata (Deshayes, 1857) †
• Diplodonta eddystonia (J. T. Marshall, 1895) accepted as Diplodonta rotundata (Montagu, 1803)