( 150 ) 



the orbit. Colour uniform greyish brown above, whitish below. 

 A dark spot below the eye. 



Grows to 24 inches. (Tail 3-5 inches.) 



Inhabits Ceylon. 



S. venustus, Jerdon. 



Loreal none, confluent with hinder frontal, the lower angle of 

 which touches the second labial. One prse and two postoculars. 

 7 upper labials, the third and fourth entering the orbit. The 

 sixth is excluded by its fellows, from the labial margin. Colour 

 greyish, or reddish brown, with three rows of black rounded 

 yellow edged spots, each spot of the vertebral series being 

 8-shaped and formed of two smaller ones united. The lateral spots 

 more oblong and irregular. Head with symmetrical markings. 

 Belly white with quadrangular black spots. Colours nearly 

 equally checquered. 



Grows to 16 inches. 



Inhabits Western India. 



Scales in 17 rows. Loreal present. Anal bifid. 



S. Russellii, Daud. 



Coluber arnensis, Shaw. 

 C. monticolus, Cantor. 

 Loreal distinct, but sometimes confluent with the hinder front- 

 al. One prse and two postoculars. 7 upper labials, the third and 

 fourth entering the orbit. Colour brownish olive with bands on 

 the head very distinct, and body crossed with white edged black 

 bars. Belly white. The bars vary from one to three scales 

 broad, and in number from 17 to 30 or thereabouts. 

 Grows to 25 inches. (Tail about 5.) 



Inhabits the Eastern and Central Himalaya, Bengal, Penin- 

 sular India and Ceylon. 



S. binotatus, D. et B. 



Xenodon dubium,, Jerdon. 

 One pras and two postoculars. 7 upper labials, the third and 

 fourth entering the orbit. Head with three angular white, black- 



