No. 39. — 1889.] ZOOLOGICAL TABLES. 213 



1. — Solid maxillary teeth, two to five. 46 E. curtus. 



2. — Solid maxillary teeth, seven to eight. 47 H. platuriis. 



3. — Solid maxillary teeth, seven to eighteen. 48 to 51 r 



H^drophis, all species. 



|SS = 52 DlSTIRA STOKESII. 



As in m, but solid maxillary teeth, four to ten in 

 number, are grooved anteriorly. 52 to 56, Distira, all 

 species. 



O = 57 VlPERA RUSSELLII. 



The anterior maxillary tooth forms a powerful 

 caniculated but ungrooved poison fang terminating in a 

 slit ; the maxillary is a short rounded bone, and being- 

 movable, the fang is carried lying back on the roof of 

 the mouth, being erected when the viper strikes. The 

 anterior mandibulary teeth are large ; the pterygoids 

 small, equal. 57 to 60, Viperidse. 



COLOUR. 



Section A. 



Belly white or yellowish, immaculate. (Sometimes 30 T. 

 stolatus has no spots on belly, and would then belong to this 

 section.) 



3 Python molurus. 



Light gray with a golden sheen. Deep brown, lance-shaped 

 spots on head and nape, streak from nostrils through eye to 

 mouth, confluent with band along lower jaw, sub-triangular 

 spot below eye, a vertebral series of large triangular spots with 

 oblong spots either side, a lateral series of rather irregular 

 spots with light centres. 



10 ASPIDURA BRACHYHORROS. 



Yellowish olive. Darker, four longitudinal streaks. 

 Brown, freckles on tail. Black, an oblique band on each 

 side of the neck, a vertebral series of dots. 



