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GASTROPODA
 ACICULIDAE |
 AGRIOLIMACIDAE |
 ARIONIDAE |
 BOETTGERILLIDAE |
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 COCHLICELLIDAE |
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 DIPLOMMATINIDAE |
 DISCIDAE |
 ELLOBIDAE |
 ENIDAE |
 EUCONULIDAE |
 FERUSSACIIDAE |
 GASTRODONTIDAE |
 HELICIDAE |
 HYGROMIIDAE |
 LAURIIDAE |
 LIMACIDAE |
 MILACIDAE |
 ORCULIDAE |
 OXYCHILIDAE |
 PLEURODISCIDAE |
 POMATIIDAE |
 PRISTILOMATIDAE |
 PUNCTIDAE |
 PUPILLIDAE |
 PYRAMIDULIDAE |
 SPHINTEROCHILIDAE |
 SUBULINIDAE |
 SUCCINEIDAE |
 TRIGONOCHLAMIDIDAE |
 TRIGONOCHLAMYDIDAE |
 TRUNCATELLIDAE |
 VALLONIIDAE |
 VERTIGINIDAE |
 VITRINIDAE |
 ZONITIDAE |