1. Genus Cassis Scopoli, 1777
2. Genus Cypraecassis Stutchbury, 1837
3. Genus Dalium Dall, 1889
4. Genus Eucorys Beu, 2008
5. Genus Galeodea Link, 1807
6. Genus Microsconsia Beu, 2008
7. Genus Oocorys P. Fischer, 1884
8. Genus Sconsia J. E. Gray, 1847
9. Genus Benthodolium A. E. Verrill, 1884 accepted as Oocorys P. Fischer, 1884
10. Genus Casis [sic] accepted as Cassis Scopoli, 1777 (unaccepted > misspelling - incorrect subsequent spelling)
11. Genus Cassidaria Lamarck, 1816 accepted as Galeodea Link, 1807 (unaccepted > junior objective synonym)
12. Genus Cassidea Bruguière, 1789 accepted as Cassis Scopoli, 1777 (unaccepted > junior objective synonym)
13. Genus Cypraeicassis Cossmann, 1903 accepted as Cypraecassis Stutchbury, 1837 (unaccepted > unjustified emendation)
14. Genus Echinora Schumacher, 1817 accepted as Galeodea Link, 1807 (junior objective synonym of Galeodea)
15. Genus Galeoocorys Kuroda & T. Habe, 1957 accepted as Galeodea Link, 1807 (unaccepted > junior subjective synonym)
16. Genus Goniogalea Mörch, 1857 accepted as Cassis Scopoli, 1777 (unaccepted > junior subjective synonym)
17. Genus Hadroocorys Quinn, 1980 accepted as Oocorys P. Fischer, 1884 (junior synonym)
18. Genus Hypocassis Iredale, 1927 accepted as Cassis (Hypocassis) Iredale, 1927 represented as Cassis Scopoli, 1777 (unaccepted > junior subjective synonym)
19. Genus Levenia J. E. Gray, 1847 accepted as Cypraecassis Stutchbury, 1837 (unaccepted > junior subjective synonym)
20. Genus Morio Montfort, 1810 accepted as Galeodea Link, 1807 (junior objective synonym of Galeodea)
21. Genus Nannocassis Iredale, 1927 accepted as Cassis Scopoli, 1777 (unaccepted > junior subjective synonym)

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