Genus: Cassis J.A. Scopoli, 1777 (syn: Cassida, Cassidea, Cassinia, Cassisoma, Fimbriola, Galeodocassis, Goniogalea, Hypocassis - DB: 41 SP, 29 IMG)
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Subgenus: Cassis (Morionella) W.H. Dall, 1909 † (DB: 1 SP, 1 IMG)
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Genus: Ceiba Clark & Durham, 1946 † (DB: 1 SP, 0 IMG)
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Genus: Cypraecassis S. Stutchbury, 1837 (syn: Cypraeicassis, Cypraeacassis - DB: 10 SP, 9 IMG)
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