1854.] PRESTWICH, LONDON CLAY AND BRACKLESHAM SANDS. 441 



Table showing the distribution and number of species in the London 

 Clay and Bracklesham Sands, and the number of species common 

 to these two deposits*. 



Class of the Organic Remains. 



Mammalia. 

 Pachydermata 



■AVES. 



Vulturidse and Struthidae ? .... 



Halcyonidse 



Ardeidse ? 



Reptilia. 



Crocodilia 



Ophidia 



Chelonia 



Pisces. 



Malacopteri apodes 



abdominales 



Pharyngognathi malacopterygii 



acanthopterygii 



Anacanthini thoracici 



Acanthopteri 



Ganoidei 



Holocephali 



Plagiostomi 



MOLLUSCA. 



Cephalopoda dibranchiata .... 



tetrabranchiata . . 



Gasteropoda opisthobranchiata 



pulmonifera 



■ prosobranchiata . . 



Lamellibranchiata monomyaria 



dimyaria. ... 



Bracliiopoda 



Bryozoa 



Articulata. 



Crustacea entomostraca , 



■ -— - — malacostraca 



Cii-ripedia 



Annelida 



Number of species. 



London 



Clay. 



2 

 1 

 \ 

 4 



2 

 1 



28 

 21 



1 



4 



5 



1 



5 



26 



11 



2 



28 



83 



3 



7 



5 



1 



132 



14 



56 



2 



_4 



224 



9 

 9 

 1 



Bracklesham Common to 

 Sands. the two series. 





 



J 

 1 



2 



4 



I 





 1 



3 

 

 

 2 

 

 4 

 18 

 28 



5 



3 



13 







219 



19 



108 



1 



372 



6 



2? 





 _5 

 13 





 

 1 

 

 



1 







1 



_7 



10 



3 







34 



5 



9 



1 



_0 



56 



2 

 ? 





 o 



* I have re-arranged this list in conformity with the classification adopted in 

 the last edition of Mr. Morris's Catalogue, which has appeared since this paper was 

 read.— J. P., Sept. 1854. 



2 H 2 



