208 



[Proc. B. N. F. C, 



TABLE— Continued. 



SPECIES. 



Scrobicularia alba 

 Solen ensis 

 Thracia papyracea 

 Corbula gibba 

 Patella vulgata 

 Helcion pellucidum 



v. laevis 



Tectura virginea 

 Fissurella Grseca 

 Cyclostrema nitens 

 •Trochus cinerareus 



umbilicatus 



zizypbinus 



Phasianella pulla 

 Lacuna divaricata" 



puteolus 



Littorina obtusata 



rudis 



litorea 



Rissoa inconspicua 



membranacea 



v. elata 



violacea 



striata. 



v. arctica 



Hydrobia ulvse 

 Skenea planorbis 

 Coecum glabrum 

 Turritella terebra 

 Ceritbium reticulatum 

 Purpura lapillus 

 Buccinum undatum 

 Murex erinaceus 

 Nassa reticulata 

 pygmsea 



Pleurotoma ruf a 

 TJtriculus obtusus 

 Acera bullata 

 Limnaea palustris 



Cancer 



Balanus ■ 



Spirorbis 



Corylus avellana 



Gravels. 



PQ 



pq 



O 



pq 





f 



vr 

 f 

 f 

 vr 

 vr 



•vr 



VC 



vr 



f 



vr 



r 

 vc 



r 



c 

 vr 



c 



f 



vr 

 vc 



c 



c 



vc 

 vr 



vr 

 vr 



vr 

 vr 



vr 



f 

 r 



vr 

 c 



us 



hrl°2 



pqpci 



vr 

 f 

 r 

 c 



f 



r 

 r 



vc 

 r 

 f 



H 6 



f 

 vr 



c 



vr 



r 

 c 

 c 



f 

 f 



vr 

 f 



vr 

 r 

 f 

 r 



REMARKS. 



S. piperata occurs in 

 some abundance in the 

 clay at tbe old pottery. 

 Two single valves. 



Of depressed shape. 



One very young ex- 

 ample. 

 Throughout the beds. 



One large example. 



Generally abundant. 



In the upper beds, 

 Rissoce and other small 

 shells do not occur, 

 having been destroyed 

 by the action of per- 

 colating water. 



One specimen. 



Remarkable for its 

 rarity. 



One example. 



One example. 

 Claws chiefly— un- 

 determinable. 



A few hazel nuts in 

 the lowest bed. 



