Heterobranchia
Architectonicidae
Mathildidae
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Pyramidellidae
Amathinidae
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Cochlicopidae
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Cerastuidae
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Odontostomidae
Urocoptidae
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Megaspiridae
Coelociidae
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Partulidae
Achatinidae
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Megalobulimidae
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Rhytididae
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Polygyridae
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Bradybaenidae
Sphincterochilidae
Hygromiidae
Helicellidae
Helicidae
Helminthoglyptidae