148 
BRITISH ANIMALS. 
Class ill. IIEPTILES. 
I. Heart with two auricles. 
A. Body furnished Avith feet. 
I. Body protected by a corneous shield. Chelonta. 
Chelona. 
Coriudo. 
II. Body covered with scales. Saekta. 
iiacerta. 
B. Body destitute of feet. Ophidia. 
i. Ventral and dors.ai scales similar. 
Anguis. 
n. Ventral and dorsal scales dissiniilas'. 
Natrix. 
Vipera. 
]L Heart with one auricle. Batraciha. 
A. Furnished vrith a tail. 
Triton. 
Destitute of a tall. 
Ft an a. 
Bulb. 
