Mr. Webster on the Strata lying over the Chalk. 179 



Pecten, several species. 



Chama ? 



Terebratula, many species. 



A longitudinal transversely rugose ostrea-form bivalve of a fibrous 

 structure. 



Fragments of another fibrous sbell of a large size, of an unknown 

 gerius. See Park. Organic Rem. pi. 5. fig. 3. 



Alcyonia, sponges, and numerous unknown zoophytes. 



A ramose madrepore. 



Several species of minute encrini, figured by Mr. Parkinson. 



Jn the Chalk without Flints. 



Echini : several of the same families as those in the chalk witli 

 flints. Many of them, however, particularly the Cassides, 

 differing much in their forms from the above. 



Spines of echini : and particularly those described by M. Braard 

 as resembling the belemnite. 



Patella. 



Trochus. 



Serpulse, several species. 



Belemnites. 



Lima ? 



Fish, too much mutilated to ascertain the genus. 



Palates, scales, vertebrse and teeth of fish. 



Cancri. 



In the Chalk Marl.* 



Ammonites : the contour of the spiral varying from the circular 

 to the long-elliptical. 



* On the authority of Mr. Parkinson I notice that the supposition of having 

 (liscovcrod a specimen of Trigonia in chalk is erroneous. This belongs only to inferior 

 strata. 



z 2 



