Table A. Showiii"- the o-eueial raoge and distribution of the organic remains of the Basement bed of the London Clay through the Hampshire and 



London Tertiary districts. 



mte —The line of ranRe is taken from the Isle of Wight north to Hungerford, thence east to Heme Bay. The names of the different localities are placed approximately at their relative 

 geographical distances. Where there are breaks in the black lines the species have not been found. The breadth of the line indicates the greater or lesser abundance of the specie ' 

 any given place. The last two columns s 



' the further vertical range of the species. 



Ditrupa plana, Sow. sp 



Panopa^a intermedia, Sow 



Corbula revoluta. Sow 



longii"ostris. Dash 



Cyrena cuneiformis, Sow 



obovata. Sow 



tellinella, Fer 



Cyprina Morrisii, Sow 



Cytherea obliqua, Bash 



ovalis, var., Sow. ? 



Cardium nitens, Sow 



Plumsteadiense, Sow 



. n-sP 



Pectunculus brevirostris, Sow 



Plumsteadiensis, Sow 



Nucula margaritacea, var. B, Z>mA. 

 Modiola depressa, Sow 



.Ostrea Bellovaciiia, Lam. (0. pulchra .') 

 Calyptra?a trochiformis, /.am. ... 



Melania inquinata, Dcf. 



Natica glauciuoides, Sow 



Mantonieusis, Filk 



labellata, iam 



Ceritbium variabile, Besh 



Cancellaria Iseviuscula, Desh 



Rostellaria Sowerliyi, Mant 



. n-sp 



Cassidaria striata. Sow 



Bucciuum junceum, Sow 



Fusus tuberosus, Sow 



Pyrula tricostata, Desk 



. Pleurotoma comma. Sow 



til II 



^•a S ^'o? S 





lit 



ill 



III 



