RINGED SNAKE. 



47 



SQUAMATA. 

 {OPHWIA.) 



COLLI Bill DyE. 



^'^>A 



Genus, Natrix. Laur. 



Generic Character. — Head distinct, oblongo-ovate, depressed, covered with 

 scuta; gape wide ; body very long, nearly cylindrical, slightly depressed ; tail 

 cylindrical, slender ; scales imbricated, placed in longitudinal series, lanceo- 

 late, generally carinated ; abdominal shields simple, arched at the margin ; 

 caudal shields biserial. 



RINGED SNAKE. 



COMMON SNAKE. 



N^ati'ix torquala. Ray. 



