50 



VENOMS 



Fig. 31. — Ancistrodon hypnalc. 



(The Carawalla of Ceylon.) 

 (After Sir Joseph Fayrer.) 



on the vertex ; a dark, light-edged band 

 on the temple ; belly whitish, more or 

 less speckled with grey or brown. 



Totallength, 490 millimetres ; tail 65. 



Habitat : From the borders of the 

 Caspian Sea and the Ural Eiver to the 

 U])per Yenisei ; Turkestan. 



A. intermedins. — Resembles the fore- 

 going very closely, but the snout is not 

 turned up at the end. 



Total length, 750 millimetres ; tail 85. 



Habitat : Central Asia, Eastern 

 Siberia, Mongolia, and Japan. 



A. blomhoffii. — Similar to A. halys, 

 but the snout is not turned up at the 

 end, and the body scales are in 21 i-ows ; 

 137—166 ventral scales; 29—55 sub- 

 caudals. 



Coloration very variable ; grey, brown, 

 or red above, with large black-edged spots 

 arranged in pairs ; black, light-edged 

 band on the temple ; upper lip uniformly 

 yellow or red ; belly yellow or reddish, 

 more or less spotted with black, or almost 

 entirely black. 



Total length, 720 millimetres; tail 

 100. 



Habitat : Eastern Siberia, Mongolia, 

 China, Japan, Siam. 



A. himalaijanus. — Snout scarcely 

 turned up, with a hard tip ; 5 — 7 supra- 

 labial shields. Body scales in 21 (rarely 

 23) rows ; 144 — 166 ventrals ; sub- 

 caudals in 35 — 51 pairs. 



