t*Ancylus fluvi.itilis 

 t ,, lacustris 

 f Arion ater 



,, hortensis 

 *Limax marginatus 



, , flavus 



,, agrestis 



* ,, maximus 

 t*Succinea putris 



* ,, elegans 

 t*'V^itrina pellucida 

 t*Zonites cellarius 

 t* ,, alliarius 

 t* ,, nitidulus 

 t* ,, crystallinus 

 t , , fulvus 



f *Helix aculeata 

 t* ,, pomatia 

 t* ,, aspersa 

 t* ,, nemoralis 

 t* ,, hortensis 

 t* ,, arbustoruin 



var. alpestris 

 t* ,, cantiana 

 t* ,, rufescens 

 t* ,, hispida 



var. concinna 

 t , , fusca 

 t* , , caperata 



,, virgata 

 t* ,, ericetorum 

 t* ,, rotundata 

 t . . pygmoea 



,, pulchella 

 t* ,, lapicida 

 t*Bulimus obscurus 

 t*Pupa umbilicata 

 t*Vertigo pygmaea 

 t*Clausilia rolphii 

 f ,, rugosa 

 *Cochlicopa lubrica 

 t Achatina acicula 

 t Carychium minimum 

 t*Cyclostoma elegans 



St. Margarets. 



Hoddesdon Fields. 



Passim. 



Passim. 



Gallows Hill. 



Passim. 



Passim. 



Passim. 



Passim. 



St. Margarets. 



Gallows Hill. 



Passim. 



Gallows Hill. 



Passim. 



Passim. 



Hoddesdon Fields. 



Hoddesdon Fields. 



Gallows Hill. 



Passim. 



Passim. Several varieties. 



Passim. Varieties passim. 



St. Margarets. 



Banks of River Lea. 



Passim. 



Passim. 



Passim. 



Gallows Hill. 



Gallows Hill. 



Passim. 



Towards Hertford, 1889. 



Gallows Hill. 



Passim. 



Hoddesdon Fields. 



Passim. 



Gallows Hill. 



Passim. 



Passim. 



Rye House. 



Gallows Hill. 



Passim. 



Passim. 



St. Margarets. 



Passim. 



Gallows Hill. 



