86 



R E P T I L I A. 



CHELONIA. 



There are in the Ipswich Museum several skulls of turtles from 

 the Red Crag of Suffolk, and there is one in the British Museum ; 

 but they have, in all probability, been derived from some earlier 

 formation, and have not been generically determined. 



SQUAMATA. 



Genus TROPIDONOTUS, Kuhl. 

 TROPIDONOTUS NATRIX, LINN JE us. 



(Common Snake.) 

 (Vert. Forest Bed, p. 114, PLATE XVII., FIGS. 4, 5.) 



Two vertebrae belonging to Mr. E. T. Dowson, from West 

 Runton, and two from Bacton in the Museum of Owen's College, 

 Manchester, represent the common snake in the Forest-bed. 



The species is now living in Middle and Southern Europe. 



Genus PELIAS, Merrem. 

 (VIPERA, Laurenti.) 

 PELIAS BERUS, LIN N^ us. 

 (Viper.) 



(Vert. Forest Bed, p. 115, PLATE XVII., FIG. 6.) 



The viper is represented in the Forest-bed by a single ver- 

 tebra from West Ruriton, which is preserved in the Museum 

 of Practical Geology. 



The species is now living throughout Europe. 



