LIST OF PETERBOROUGH MOLLUSCA. 



Name. Locality. 



Z. pere}^ra var. ovata River Nene 



Do. var. aaiminata ,, 



T ■ J, ! 4 ■ (River Nene) 



^ I dykes j 



LimncKa sta^nalis ,, 



Do var. fra((ilis „ 



Limncea triincatula 



formation. 



Neritina fluviatilis 

 Paludina cotitecta 



Physa fontinalis 



Physa hypnorum 

 Pisidium aninicicm 



Pisidium fontinale 



Pisidium roseujn 

 Planorbis albus 

 Planorbis carinatus 

 Plano?-bis cofnplanatus 

 Planorbis corneus 

 Planorbis contortus 

 Planorbis vortex 

 Pupa unibilicata 

 SphoRriurn rivicola 

 Sphceriiwi corneum 

 Do. var. nucleus 

 Do. vdj. flavescens 



Sphcpj-ium lacustre 



Succinea putris 



Succinea elegans 



Unio piciorum 



Do. var. radiata 

 Do. var. compressa 



River Nene 



(River Nene) 

 I dyke.s j 



("River Nene) 

 ( & Orton / 



River Nene 



j River Nene 

 ( dykes 



Thorpe, Orton. Cornbrash 

 River Nene 



jRivcr Nene) 

 ( dykes / 



Remarks. 



Scarce. 



Common, 



Scarce, 



Common. 



Common. 

 Scarce, 



Scarce, 



>) 

 General, 



Common. 



General, 



Common, 



Common, 



Rare. 



Common, 



Rare. 



Rare. 



Scarce. 



1-^Tvhif^W.I Oxford Clay General, 



/ & \Vhittlesea| 

 River Nene 



General. 

 Scarce. 



