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Superfamily Helicoidea
Family Solaropsidae
Family Camaenidae
Family Sphincterochilidae
Family Hygromiidae
subfamily Trichiinae 
Family Helicidae
subfamily Ariantinae
subfamily Helicigoninae
subfamily Leptaxinae
subfamily Helicinae
subfamily Helicodontinae 
Family Helicellidae
Family Bradybaenidae
subfamily Bradybaeninae
subfamily Helicostylinae
Family Helminthoglyptidae
Family Oreohelicidae
Family Humboldtianidae