72 



BoiDa:. 



South-eastern Europe, Central and South Asia, Africa, Australia, 

 Western Forth America, Central and South America, and "West 

 Indies. 



Fig. 3. 



n. prf mr f ptf efg ]> P^ f'^ so 



q' a.a, sl£, 



stei CO, 'II 



Skull of 'Python wmethystimm. 



Synopsis of the Subfamilies and Genera. 



I. Supraorbital bone present PYTHONINjE. 



A. Prsemaxillary bone toothed ; subcaudals mostly in two rows. 



1. TaU not or but very slightly prehensile ; rostral shield 

 without or with shallow pits. 



No labial pits ; nostril lateral, in a single nasal ; no loreal. V 



1. Loxocemus, p. 74. \ 



Lower labials with pits ; nostril, lateral, between two nasals. ' 



2. Nardoa, p. 75. 



