THE POISONOUS SNAKES OP INDIA. 



29 



is perhaps rather a nice point which may require a practised eye to 



y«/ 



B 



Cuneaiit , 



c 



Fig. 16. — Naia tripudians (nat. size). 



determine positively, but to an observant enquirer there should be 

 little diflBculty, and with proper care the character is a very valu- 

 able one. 



Supplementary characters. — Prcefrontals touch the internasal, prse- 

 ocular, supraocular, and frontal. Temporals 2, the lower touching 

 the 5th and 6th supralabials. Supralabials 7. Anterior sublinguals 

 touch 4 infralabials. Posterior sublinguals touch the 4th and 6th 

 infralabials. Infralabials. — The 4th and 5th are the largest of the 

 series, and about subequal. Scales. — 2 heads length behind the 



