248 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Apr. 21, 



Organic Remains of the Thanet Sands. 



c Common. r Rare. 

 cc Very common. rr Very rare. 

 ccc Very abundant. 



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ll 



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Highest vertical range in the 

 English marine Tertiaries. 



Univalves. 

 Ampullaria subdepressa, A/orr/s {a.)... c 



Calyptraea trochiforrais, Lam. ? rr 



Chemnitzia or Eulima, a very small 



species ., rr 



Dentalium nitens, Sow. (a*.) r 



Fusus, one or two species r 



Rostellaria or Aporrhais rr 



Scalaria Bowerbankii, Mor. pi. 16. 



fia:. 9 (af.) rr 



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Barton Clay. 

 Barton Clay. 



Basement-bed L. Clay. 



Barton Clay. 

 Bracklesham Clay. 



Basement-bed L. Clay. 



Basement-bed L. Clay. 

 Mid. Div. L. L. Tert. 

 Mid. Div. L. L. Tert. 



London Clay. 

 Barton Clay. 



Barton Clay. 

 London Clay. 



, a smaller species (b.) rr 



Trophon subnodosum, Mor. pi. 16. 

 fig. 10 rr 



Bivalves. 

 Area, one, or probably two, small 



species (e.) r 



Astarte tenera, Mor. pi. 16. fig. 6 (d.) r 



Cardium, large species rr 



Corbula globosa, Sow.} c 



longirostris, DesA. (e.) c 



Crassatella rr 



Cyprina Morrisii, aS'ow ccc 



, a rather larger species (/.) c 



Cytherea orbicularis, Mor. pi. 16. fig. 5. c 

 , a rather smaller species (g.) ... r 



Cucullaea crassatina, Lam. (h.) c 



Glycimeris Rutupiensis, Mor. pi. 16. 



fig. 2 r 



Leda substriata, Mor. pi. 16. fig. 7. ... c 



Modiola r 



margaritacea, Lam. ? c 



Ostrea, a very small species r 





Panopsea granulata, ikf or. pi. 16. fig. 3 (^.) r 

 Pecten Prestvichii, Mor. pi. 16. fig. 8. rr 

 Pholadomya cuneata. Sow c 



Konmckii, NystQ) (/.) c 





Ringicula turgid a rr 



Sanguinolaria Edvardsii, Mor. pi. 16. 



fig. 1 c 



)Saxicava compressa, Edw. MSS. ? (m.) rr 

 Thracia oblata, ^SoM? cc 



Entomostraca. 

 Cythereis, nov. sp rr 





