| 1. | Swainson, 1855 as a subgenus in " Calliostoma"
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| 2. | "Calliostoma ligatum " is a broadcast spawner.
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| 3. | Dautzenberg, 1927 is a synonym of " Calliostoma lividum"
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| 4. | He named the calliostoma topsnail " Calliostoma philippei"
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| 5. | He named the calliostoma topsnail " Calliostoma philippei"
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| 6. | The jaw is like that of " Calliostoma " in shape.
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| 7. | Guido Poppe named the topsnail " Calliostoma mariae " after his mother Maria Peyskens.
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| 8. | The genus " Calliostoma " is known in fossil records from the Upper Cretaceous onwards.
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| 9. | The North Atlantic topshell " Calliostoma occidentale " has been reported to feed on coelenterates.
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| 10. | B . A . Marshall, 1995 is an invalid name : junior homonym of " Calliostoma coronatum"
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