278 



COLUBEIDjB. 



Synopsis of tJie Siibfainilies represented in the Indian Fauna. 



Series A. AGLYPHA. 



Postfrontal bone not produced 'over the su- 

 praorbital region ; scales imbricate .... Colitbhinje, p. 279. 



Postfrontal bone produced over the supra- 

 orbital region ; scales not imbricate .... AcHorHoncix^, p. 354 



Series B. OPISTHOGLYPHA. 



Nostrils lateral Dipsadin^e, p. 356. 



Nostrils on the upper surface of the head. . Homalopsin^, p. 372. 



Series C. PROTEROGLYPHA. 



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

 Tail compressed, caudal hypapophyses long. Hydbophiinje, p. 393, 



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

 terniinologj- of the head-shields. 



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

 cs'. Chin-shields (posterior). «. Nasal. 



/. Frontal. p. Pai-ietal. 



in. Inter nasal. pf. Prefrontal. 



I. Loreal. pro. Pra?ocular. 



la. Upper labial. 2)to. Post ocular. 



Ja'. Lower labial. r. Rostral. 



xho. Subocular. 

 so. Supraocular. 

 t. Temporals (first row). 

 i' . Temporals (second row). 

 V. First ventral. 



