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GASTROPODA
 ACHATINIDAE |
 AGRIOLIMACIDAE |
 AMPULLARIIDAE |
 ARIONIDAE |
 BRADYBAENIDAE |
 CAMAENIDAE |
 CLAUSILIDAE |
 EUCONULIDAE |
 FERUSSACIIDAE |
 HELICIDAE |
 HELICINIDAE |
 HYDROBIIDAE |
 LIMACIDAE |
 LYMNAEIDAE |
 MEGALOMASTOMIDAE |
 MILACIDAE |
 NEOCYCLOTIDAE |
 NERITIDAE |
 ORTHALICIDAE |
 PACHYCHILIDAE |
 PHYSIDAE |
 PLANORBIDAE |
 PLEURODONTIDAE |
 PUPILLIDAE |
 SAGDIDAE |
 SCOLODONTIDAE |
 SPIRAXIDAE |
 STREPTAXIDAE |
 STROPHOCHEILIDAE |
 SUBULINIDAE |
 SUCCINEIDAE |
 THIARIDAE |
 THYSANOPHORIDAE |
 UROCOPTIDAE |
 VERONICELLIDAE |
 VERTIGINIDAE |
 XANTHONYCHIDAE |