158 SOME NEW SECTIONS AT ILFORD 



into River Gravel with shells in the upper part, and overlaid by 

 made ground. Several imperfect examples of Covbiciila fltmiinalis 

 and Helix nemoralis were obtained from the sand, together with 

 an abnormal specimen of HeliccUa itala — a new record from 

 Ilford. The adjacent pit showed a similar section which did not 

 however, at that time, yield any shells, these being very 

 irregularly distributed throughout the deposit. 



Since the above visit we have systematically collected from 

 these sections and have been rewarded with several finds of great 

 interest. 



The following is a complete list of the Mollusca we have 

 obtained : — 



Agviolimax agi'cstis, Linn 



Vitrea crystaUina, Miill. 



V. nitida, Miill. 



Arioii ate I', Linn. 



Punctnm pygmaeiim, Drap. 



Pyramidnla rotundata, Miill. 



Enlota fruticum, Miill. 



HeliccUa itala, Linn. var. 

 ,, caper at a, Mont. 



Vallouia pulchella, Mull. 



Helix hovteusis, Miill. 

 ,, nemoralis, Linn. 



Pupa iHuscoruni, Linn. 



Vertigo antivevtigo, Drap. 



Claiisilia laminata, Mont. 



C hi.ientata, Strom. 



Cochlicopa Inbrica, Miill. 



Carychimn inininiiiiii, Miill. 



Succiiiea elegans, Risso. 



A ncylus fliiviatilis, M till . 



Limnea peirgcr, Miill. 



L. aiivicnlavia, Linn. 



L. paliistns, Mull. 



L. truncatnla, Miill. 



Planorbis niarginatns, Drap. 



P. glaber, JefFr. 



P. spirorbis, Miill. 



Valvata piscinalis, Miill 



V. cvistata, Miill. 



Bitlivnia tcntaculata, Linn. 



