58 



VIPERID.E. 



SQUAMATA. 

 (OPH1D1A.) 



VIPER1DA. 



Genus, Pelius. Merr. 



Generic Character .Head depressed, oblong-ovate, somewhat compressed 

 before, and wider behind the eyes ; vertex covered with scuta ; no pit between 

 the nostrils and eyes ; tail with double plates beneath. 



COMMON VIPER. 



ADDER. 



Pdius Berus. 



