Reading Beds. 



243 



turtles, and the scutes of a crocodile ; several fish of the 

 genus Lamna (L. contortidens, &c.), Lepidosteus , 

 LepidotuSy and Myliobatis ; marine Gasteropoda, such 

 as Cerithium funatum, &c. ; Fusus latus, Hydrobia 

 Parkinsoni, Melanopsis brevis, &c. ; Natica, Neritina, 



FIG. 48. 



Pitharella Rickmanii. Cerithium funatum. Ostrea tenera. 



Cyrena telenella. Hoploparia gammaroides. Panopoea intermedia. 



Group of Fossils from the Woolwich and Beading Beds. 



and others. Lamellibranchiata, not very numerous as 

 genera and species, but plentiful as individuals, occur 

 both in the sands and clays, including species of Area, 

 Cardium, Corbula, Cyprina Morrisii, Cyrena cor data, 

 &c., Modiola elegans, Ostrea edulina or Bellovacina, 



R2 



