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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Mollusca (clams, snails, squids, and relatives)
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Class Gastropoda
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Order Neotaenioglossa
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Family Epitoniidae
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Genus Acirsa
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Genus Alexania
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Genus Amaea
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Genus Asperiscala
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Genus Boreoscala
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Genus Cirsotrema
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Genus Claviscala
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Genus Couthouyella
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Genus Depressiscala
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Genus Epitonium
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Genus Funiscala
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Genus Gyroscala
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Genus Iphitus
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Genus Murdochella
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Genus Nitidiscala
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Genus Nodiscala
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Genus Nystiella
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Genus Opalia
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Genus Opaliopsis
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Genus Sthenorytis
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