Ch. XVI.] 



BKACKLESHAM BEDS. 



215 



probably more genial ; for amongst the companions of the sea-snake of 

 BracHesham was an extinct Gavial (Gavialis Dixoni, Owen), and numer- 

 ous fish, such as now frequent the seas of warm latitudes, as the sword-fish 

 (see fig. 208), and gigantic rays of the genus Myliobates (see fig. 209). 



Fig. 208. 



Prolonged premaxillary bone or " sword" of a fossil sword-fish {Cmlorhynchus). 

 sham. Dixon's Fossils of Sussex, pi. S. 



Brackle- 



Fig. 209. 



Fig. 210. 



Dental plates of 3fyliooates Edtcardsi. 

 Bracklesham Bay. Ibid. pL 8. 



Nummulites (JsPummularia) laevigata. 

 Bracklesham. Ibid. pi. 8. 



a. Section of the nummulite. 

 6. Group, with an individual showing the exterior 

 of the shelL 



The teeth of sharks also, of the genera Carcharodon, Otodus, Lamna, 

 Galeocerdo, and others, are abundant. (See figs. 211, 212, 213, 214.) 



Fig. 212, 



Fig. 213. 



Fig. 214. 



Carcharodtrt, heterodon, Agass. Otodus obliquus, Agass. Lamna elegans, Galeocerdo latidens, 



A 

 Teeth of sharks from Bracklesham Bay. 



The Nummulites Icevigata (see fig. 210), so characteristic of the lower 

 beds of the calcaire grossier in France, where it sometimes forms stony 

 layers, as near Compiegne, is very common at Bracklesham, together with 

 N. scabra and 1SF. variolaria. Out of 193 species of testacea procured 

 from the Bagshot and Bracklesham beds in England, 126 occur in the 

 calcaire grossier in France. It was clearly therefore coeval with that 

 part of the Parisian series more nearly than with any other. 



