278 



COLUBRIDJE. 



Synopsis of the Subfamilies represented in the Indian Fauna. 



Series A. AGLYPHA. 



Postfrontal bone not produced "over the su- 



praorbital region ; scales imbricate CCXLUBBIN^E, p. 279. 



Postfrontal bone produced over the supra- 

 orbital region ; scales not imbricate .... ACROOHORDIX.S:, p. 354 



Series B. OPISTHOGLYPHA. 



Nostrils lateral DIPSADIXJE, p. 356. 



Nostrils on the upper surface of the head. . HOMALOPSIN.S:, p. 372. 



Series C. PROTEROGLYPHA. 



Tail round, caudal hypapophyses short .... ELAPINJE, p. 382. 

 Tail compressed, caudal hypapophyses long. HYDHOPHIIN.S:, p. 393. 



Fig. 87. Three views of head of Zamenis ventrimaculatus, to explain the 

 terminology of the head-shields. 



cs. Chin-shields (anterior), m. Mental. 

 cs'. Chin-shields (posterior), n. Nasal. 



/. Frontal. p. Parietal. 



in. Internasal. pf. Prsefrontal. 



/. Loreal. pro. Pracocular. 



fa. Upper labial. pfo. Postocular. 



la'. Lower labial. r. Eostral. 



xl?. Subocular. 

 so. Supraocular. 

 /. Temporals (first row). 

 t'. Temporals (second row). 

 v. First ventral. 



