1 86 



LIST OF PETERBOROUGH INFOLLUSCA. 



Name. 



Cyclostoma clegans 

 Dreissena polymorpha 



Helix aspersa 



Helix arbiisfonnn 



Do. var. flaveseens 

 Do. var. major 



Helix caniiana 



Helix caperata 



Do. var. or/iata 



Helix ericetoniin 

 Do. var. albida 



Helix hispida 



Do. var. subnifa 

 Helix hortcnsis 



Do. var. hybrida 

 Helix lapicida 

 Helix nemo rails 

 Helix pulchella 



Do. var. costata 

 Helix rotimdata 



Helix riifeseeiis 



Do. var. albida 

 Helix sericea 



Helix virgata 



Do. var. albida ? 

 Limax marginatus 

 Liinax flavus 

 Limax agrestis 

 Limncza aurictdaria 

 LimncBa peregra 



T r. Geoloa;ical 



T.ocahty. foniwdon. 



Thorpe, Fl'tton 



River Nene 



Thorpe and CornbrashtS: 



( Fletton Oxford Clay J 



Remarks. 



Local. 

 General. 



Common. 



Thorpe 



River Lane Claj' 

 Thorpe Cornbrash 



Thorpe and \ 

 Eastfield j 



Thorpe 



River Lane 



River Lane 

 & Thorpe 

 River Lane 



Fletton & ( 

 Thorpe j 



Thorpe 



Fletton 



River Nene 



Gravel 



Scarce. 



Frequent. 

 Scarce. 

 General. 

 Frequent. 



Common. 



Frequent, 



Local. 



General. 



Frequent. 

 Common. 

 Frequent. 



General. 



General. 



Scarce. 

 Common. 



J.C, iv., April, 1SS4. 



