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1890 Xenogalea Iredale, 1927: synonym of Semicassis Mörch, 1852 Xenophalium Iredale, 1927: synonym of Semicassis Mörch, 1852 Casmaria erinaceus Cassis cornuta
Semicassis pyrum（英语：Semicassis pyrum）的螺殼, which has a large aperture and a pronounced parietal callus（英语：parietal callus）