206 



Pars 17 



2. Superfamilie: Holopoda 



* Apuridae 

 *|Rhytididae 



* Circinnariidae 

 *fPolygyridae 

 *fSagdidae 

 ♦•{-Acavidae 

 *|Eulotidae 

 *fHelicidae 

 •fCamaenidae 

 *|Bulimulidae 

 *-j-Odontostoinidae 



* Orthalicidae 

 *fStreptaxidae 

 *fCerionidae 



* Plectopylidae 

 ♦fMegaspiridae 

 ♦-j-Urocoptidae 



•j-Filholiidae 

 ♦fClausiliidae 

 ♦fOleacinidae 

 *fAchatinidae 

 ♦fRuminidae 

 *fCoeliaxidae 



II. Heternrethra (Elasmognatha) 



♦•j-Succiniidae 



III. Orthurethra 



*-}-Valloniidae 

 *-[pieurodiscidae 

 ♦fPupillidae 

 *|Buliminidae 



* Partulidae 



* Amastridae 



* Achatinellidae 



* Tornatellinidae 

 *fFerrussacidae 



Unterordnung: Basomtnatophora 



I. Gebydrophila 



•fAuriculidae 

 *fCarychiidae 



* Otinidae 



II. Hygrophila 



*fLymnaeidae 



♦fPlanorbidae 



*fAncylidae 



♦fPhysidae 



*|Chilinidae 



III. Thalassophila 



*|Siphonariidae 

 fAcroriidae 



T 



Amphibolidae 

 Unterordnung: Dltremata 



1. Superfamilie: Mesotremata 



• Vaginulidae 



2. Superfamilie: Opiathotreniata 



* Onchidiidae 



