72 



BOIDiE. 



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

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

 Indies. 



Fig. 3. 



n. jirf sor f ptf epg P Pf^ f^ _.„ 



S" aa^ sCe, 



ST6 c a 1 



Skull of Python amethystinus. 



Synopsis of the Subfamilies and Genera. 



I. Supraorbital bone present PYTHONINiE. 



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



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

 without or with shallow pits. 



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



1. Loxocemus, p. 74. 



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



2. Nardoa, p. 75. 



