1. Subfamily Emarginulinae Children, 1834
   1. Genus Agariste Monterosato, 1892
   2. Genus Altrix K. van W. Palmer, 1942
   3. Genus Arginula K. van W. Palmer, 1937
   4. Genus Buchanania Lesson, 1831
   5. Genus Clathrosepta J. H. McLean & D. L. Geiger, 1998
   6. Genus Clypidina Gray, 1847
   7. Genus Emarginella Pilsbry, 1891
   8. Genus Emarginula Lamarck, 1801
   9. Genus Fissurisepta G. Seguenza, 1863
   10. Genus Laeviemarginula Habe, 1953
   11. Genus Laevinesta Pilsbry & T. L. McGinty, 1952
   12. Genus Manganesepta J. H. McLean & D. L. Geiger, 1998
   13. Genus Montfortula Iredale, 1915
   14. Genus Parmaphorella Strebel, 1907
   15. Genus Pupillaea Gray, 1835
   16. Genus Rixa Iredale, 1924
   17. Genus Scelidotoma J. H. McLean, 1966
   18. Genus Scutus Montfort, 1810
   19. Genus Stromboli S. S. Berry, 1954
   20. Genus Tugali J. E. Gray, 1843
   21. Genus Tugalina Habe, 1953
   22. Genus Vacerrena Iredale, 1958
   23. Genus Aviscutum Iredale, 1940 accepted as Scutus Montfort, 1810
   24. Genus Notomella Cotton, 1957 accepted as Emarginula Lamarck, 1801 (junior subjective synonym)
   25. Genus Parmophoridea Wenz, 1938 accepted as Parmaphorella Strebel, 1907 (unnecessary replacement name)
   26. Genus Parmophorus Blainville, 1817 accepted as Scutus Montfort, 1810 (unnecessary substitute name for Scutus)
   27. Genus Plagiorhytis P. Fischer, 1885 accepted as Montfortula Iredale, 1915 (Invalid: junior homonym of Plagiorhytis Chaudoir, 1848)
   28. Genus Rimulanax Iredale, 1924 accepted as Puncturella (Cranopsis) A. Adams, 1860 accepted as Puncturella R. T. Lowe, 1827 (unaccepted > junior subjective synonym)
   29. Genus Rimularia Bronn, 1838 accepted as Rimula Defrance, 1827 (unjustified emendation of Rimula Defrance, 1827)
   30. Genus Semperia Crosse, 1867 accepted as Emarginula Lamarck, 1801 (junior subjective synonym)
   31. Genus Subzeidora Iredale, 1924 accepted as Emarginula (Subzeidora) Iredale, 1924 represented as Emarginula Lamarck, 1801
   32. Genus Tugalia [sic] accepted as Tugali J. E. Gray, 1843 (incorrect subsequent spelling)
   33. Genus Vacerra Iredale, 1924 accepted as Vacerrena Iredale, 1958 (invalid: junior homonym of Vacerra Godman, 1900 [Lepidoptera]; Vacerrena is a replacement name)
   34. Genus Variegemarginula J. H. McLean, 2011 accepted as Montfortula Iredale, 1915
   35. Genus Clypidella Swainson, 1840 (uncertain > taxon inquirendum)
2. Subfamily Fissurellideinae Pilsbry, 1890
   1. Genus Cosmetalepas Iredale, 1924
   2. Genus Diodora J. E. Gray, 1821
   3. Genus Fissurellidea A. d'Orbigny, 1839
   4. Genus Lucapina J. E. Gray, 1835
   5. Genus Megathura Pilsbry, 1890
   6. Genus Monodilepas H. J. Finlay, 1926
   7. Genus Elegidion Iredale, 1924 accepted as Diodora J. E. Gray, 1821 (unaccepted > junior subjective synonym)
   8. Genus Fissurellidaea [sic] accepted as Fissurellidea A. d'Orbigny, 1839 (misspelling of genus)
   9. Genus Fissuridea Swainson, 1840 accepted as Diodora J. E. Gray, 1821 (unaccepted > junior subjective synonym)
   10. Genus Foraminella G. B. Sowerby I, 1835 accepted as Lucapina J. E. Gray, 1835 (Not available: introduced in synonymy; placed in synonymy of Lucapina by First Reviser's choice by Thiele, 1929)
   11. Genus Glyphis P. P. Carpenter, 1857 accepted as Diodora J. E. Gray, 1821 (invalid: junior homonym of Glyphis Agassiz, 1843)
   12. Genus Megatebennus Pilsbry, 1890 accepted as Fissurellidea A. d'Orbigny, 1839
3. Subfamily Fissurellinae J. Fleming, 1822
   1. Genus Amblychilepas Pilsbry, 1890
   2. Genus Dendrofissurella J. H. McLean & Kilburn, 1986
   3. Genus Fissurella Bruguière, 1789
   4. Genus Leurolepas J. H. McLean, 1970
   5. Genus Lucapinella Pilsbry, 1890
   6. Genus Macroschisma Gray, 1835
   7. Genus Medusafissurella J. H. McLean & Kilburn, 1986
   8. Genus Balboaina Pérez Farfante, 1943 accepted as Fissurella Bruguière, 1789
   9. Genus Dolichoschisma Iredale, 1940 accepted as Macroschisma Gray, 1835
   10. Genus Forolepas Iredale, 1940 accepted as Macroschisma Gray, 1835
   11. Genus Machrochisma accepted as Macroschisma Gray, 1835 (misspelling)
   12. Genus Sophismalepas Iredale, 1924 accepted as Amblychilepas Pilsbry, 1890
4. Subfamily Rimulinae Anton, 1838
   1. Genus Rimula Defrance, 1827
5. Subfamily Zeidorinae Naef, 1913
   1. Genus Cornisepta J. H. McLean & D. L. Geiger, 1998
   2. Genus Hemimarginula J. H. McLean, 2011
   3. Genus Hemitoma Swainson, 1840
   4. Genus Montfortia Récluz, 1843
   5. Genus Montfortista Iredale, 1929
   6. Genus Montfortulana Habe, 1961
   7. Genus Octomarginula J. H. McLean, 2011
   8. Genus Profundisepta J. H. McLean & D. L. Geiger, 1998
   9. Genus Puncturella R. T. Lowe, 1827
   10. Genus Zeidora A. Adams, 1860
   11. Genus Cemoria Risso, 1826 accepted as Puncturella R. T. Lowe, 1827 (junior subjective synonym)
   12. Genus Legrandia C. E. Beddome, 1883 accepted as Zeidora A. Adams, 1860 (invalid: junior homonym of Legrandia Hanley, 1872)
   13. Genus Nesta H. Adams, 1870 accepted as Zeidora A. Adams, 1860
   14. Genus Sipho T. Brown, 1827 accepted as Puncturella R. T. Lowe, 1827
   15. Genus Siphonella Issel, 1869 accepted as Montfortista Iredale, 1929 (Invalid: junior homonym of Siphonella Hagenow, 1851)
   16. Genus Subemarginula J. E. Gray, 1847 accepted as Hemitoma Swainson, 1840 (same type species)
   17. Genus Zidora P. Fischer, 1885 accepted as Zeidora A. Adams, 1860 (invalid: unjustified emendation of Zeidora A. Adams, 1860)
   18. Genus Cranopsis A. Adams, 1860 (uncertain, validity debated)
6. Subfamily Diodorinae Odhner, 1932 accepted as Fissurellideinae Pilsbry, 1890 (unaccepted > junior subjective synonym)
7. Subfamily Hemitominae Kuroda & Habe, 1971 accepted as Zeidorinae Naef, 1913
8. Subfamily Fissurellidae incertae sedis (temporary name)

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