458 



PROCEEDINGS OE THE GEOLOGICAL SOCIETY. 



List of Shells (continued). 



Univalves. 



Upper Lower 

 Beds. Beds. 



Nassa — ?, sp. n * 



incrassata yr r 



propinqua 2 



Natica catena c e 



elausa 



grcenlandioa 



helicoides vr 



Odostomia conoidea * 



Patella Tulgata vr 



vr 

 vr 

 vr 



Purpura lapillus 



Kingicula ventricosa . . 



Eissoa semicostata 



Scalaria grcBnlandica . 



Trevelyana 



Tornatella tornatilis . . 

 Trochus tumidus 







. vr 

 r 



r 

 r 



. nc 

 . nc 



c 

 r 



c 

 . vc 

 . vc 

 . V r 

 c 

 c 



vc 

 r 

 r 



n c 

 vr 

 r 



Trophon antiquum 



scalariforme 



Turritella communis . . 

 ■ incrassata 



c 

 t 

 c 

 c 



Yelutina laevigata 



Bivalves. 



Anomia ephippium 



patellifoi-mis 



vr 



r 

 r 





r 





V c 



groenlandicum . . 



Corbula striata 



Cyprina islandica 



vr 

 r 



vc 



Bivalves. Upper 



Beds. 



Diplodonta astartea 



Leda lanceolata 



limatula c 



Lepton nitidum 



Loripes divaricatus 



Lucina borealis nc 



Mactra ovalis r 



solida c 



stultorum 



subtruncata c 



Mya arenaria c 



truncata 



Mytilus edulis v c 



Nucula Cobboldi£e v r 



tenuis vr 



Pectunculus glycymeris 



Peoten opercularis r 



Saxicava rvigosa r 



Solen siliqua 



Tapes texturata 



virginea 



Tellina fabula 



lata c 



obliqua v c 



■ prsetenuis c 



Thracia phaseolina r 



Trigonella plana v r 



Yenus fasciata 



Brackiopod. 

 Ehynchonella psittacea 



Lower 

 Beds. 



t 



fr 



vr 

 vc 



vc 

 vc 



vr 

 vr 

 vr 



r 



r 



t 



t 



t 



vc 

 vc 

 vc 

 vr 

 lor 2 

 rr 



Land and Freshwater Shells. 



By thinia tentacrdata 



Carychium minimum 



Helix hispida 



pidchella 



Limnaa peregra 



■ palustris 



Paludestrina subumbili- 



cata V : 



Paludina lenta 



Planorbis complanatus 



spirorbis 



Pupa marginata 



Succinea putris 



Valvata cristata 



piscinalis v : 



vr 



t 

 r 

 t 

 vr 



t 



vr 

 t 

 t 



vr 

 vr 



Cyclas cornea v r 



Pisidium amnicum vr 



Foraminifera. 



Polystomella c c 



Eotalia c c 



Fragments of Balanus are common 

 in both beds. Spines of Spatangus and 

 small claws of Crab are scarce. Verte- 

 brae and other small bones of fishes are 

 common in the lower bed and rare in 

 the upper one. Eemains of Arvicola 

 very rare in either. Eemains of Ele- 

 phant and Mastodon have been quoted 

 from Bramerton, but they are very rare. 



In addition to these, Mr. Harmer has found the Panopcea norvegica and 

 Trochus sizypMmt.s in the lower bed, Astarte sulcata, Abra alba, and Nucula 

 nucleus in the upper bed. 



Postwick pit has long been noted for the occurrence of Rhyncho- 

 nella psittacea and for the annelid-drilled surface of the chalk at the 

 base of the crag. 



* From a bank in a lane leading to Bramerton. 



t These are from a small adjacent pit in Mr. Blake's grounds, in which 

 Scrobicularia piperata {Trigonella plana) occurs in abundance. 



