1. Genus Amygdalum Megerle von Mühlfeld, 1811
   1. Species Amygdalum americanum T. Soot-Ryen, 1955
   2. Species Amygdalum anoxicolum P. G. Oliver, 2001
   3. Species Amygdalum arborescens (Fischer von Waldheim, 1807)
   4. Species Amygdalum newcombi (Dall, Bartsch & Rehder, 1938)
   5. Species Amygdalum pallidulum (Dall, 1916)
   6. Species Amygdalum peasei (Newcomb, 1870)
   7. Species Amygdalum politum (A. E. Verrill & S. Smith, 1880)
   8. Species Amygdalum sagittatum (Rehder, 1935)
   9. Species Amygdalum soyoae Habe, 1958
   10. Species Amygdalum striatum (F. W. Hutton, 1873)
   11. Species Amygdalum watsoni (E. A. Smith, 1885)
   12. Species Amygdalum agglutinans (Cantraine, 1835) accepted as Lioberus agglutinans (Cantraine, 1835)
   13. Species Amygdalum beddomei Iredale, 1924 accepted as Amygdalum striatum (F. W. Hutton, 1873) (unaccepted > junior subjective synonym)
   14. Species Amygdalum dendriticum Megerle von Mühlfeld, 1811 accepted as Amygdalum arborescens (Fischer von Waldheim, 1807)
   15. Species Amygdalum frixum Mörch, 1853 accepted as Barbatia amygdalumtostum (Röding, 1798)
   16. Species Amygdalum japonica (Dunker, 1857) accepted as Arcuatula japonica (Dunker, 1857) (unaccepted > superseded combination)
   17. Species Amygdalum luteum (P. Fischer, 1882) accepted as Amygdalum politum (A. E. Verrill & S. Smith, 1880) (unaccepted > junior subjective synonym)
   18. Species Amygdalum papyrium (Conrad, 1846) accepted as Arcuatula papyria (Conrad, 1846) (unaccepted > superseded combination)
   19. Species Amygdalum plumeum Kuroda & Habe, 1971 accepted as Amygdalum peasei (Newcomb, 1870)
2. Genus Aulacomya Mörch, 1853
   1. Species Aulacomya atra (Molina, 1782)
      1. Subspecies Aulacomya atra atra (Molina, 1782)
      2. Subspecies Aulacomya atra capensis (Dunker, 1846)
      3. Subspecies Aulacomya atra crenata (Lamarck, 1819) accepted as Aulacomya atra capensis (Dunker, 1846)
      4. Subspecies Aulacomya atra maoriana (Iredale, 1915) accepted as Aulacomya maoriana (Iredale, 1915) (superseded combination)
      5. Subspecies Aulacomya atra regia (A. W. B. Powell, 1957) accepted as Aulacomya atra (Molina, 1782)
   2. Species Aulacomya maoriana (Iredale, 1915)
   3. Species Aulacomya regia A. W. B. Powell, 1957
   4. Species Aulacomya ater (Molina, 1782) accepted as Aulacomya atra (Molina, 1782) (incorrect gender ending)
      1. Subspecies Aulacomya ater ater [sic] accepted as Aulacomya atra (Molina, 1782) (incorrect gender ending)
      2. Subspecies Aulacomya ater maoriana (Iredale, 1915) accepted as Aulacomya maoriana (Iredale, 1915) (superseded combination)
      3. Subspecies Aulacomya ater regia A. W. B. Powell, 1957 accepted as Aulacomya atra (Molina, 1782)
   5. Species Aulacomya capensis (Dunker, 1846) accepted as Aulacomya atra capensis (Dunker, 1846)
   6. Species Aulacomya magellanica (Chemnitz, 1785) accepted as Aulacomya atra (Molina, 1782)
      1. Subspecies Aulacomya magellanica regia A. W. B. Powell, 1957 accepted as Aulacomya regia A. W. B. Powell, 1957
3. Genus Urumella Hayami & Kase, 1993
   1. Species Urumella concava Hayami & Kase, 1993
4. Genus Modiella Monterosato, 1884 accepted as Amygdalum Megerle von Mühlfeld, 1811 (synonym)

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