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It is called ' Halhallia' in Bengal, and is one of the commonest 

 snakes in the country. 



T. monticola, Jerdon. 



Form slender. Head narrow. Eye large. Prjefrontals truneaired 

 in front, half as large as postfrontals. One prseocular. Three 

 narrow postoculars. Loreal large square. 8 upper labials, the 

 third, fourth and fifth entering the orbit. Scales keeled in 19 

 rows. Colour green, with 28 black bands across the trunk, each 

 band broken into three spots by two longitudinal bands of the 

 ground colour, a white dot marking the points of intersection. 

 The first cross-band occupies the occiput and is white-edged in 

 front. A pair of white dots between the eyes and a black dot 

 on the suture between the fifth and sixth upper labials. Below 

 white. 



Inhabits the Wynaad. 



T. Himalayanus, Giinther, 



Prsefrontals truncated in front, half as large as postfrontals. 

 Loreal square. One prseocular. Three postoculars. 8 upper 

 labials (sometimes 9), the fourth and fifth entering the orbit. 

 Scales strongly keeled in 19 rows. Colour brownish olive above, 

 with two dorsal rows of numerous small quadrangular transverse 

 yellow spots, more distinct posteriorly. A bright orange yellow 

 collar on the neck, behind which the trunk is reticulated with 

 yellow fading posteriorly into white. Chin and throat yellow. 

 Belly clouded with brownish, passing posteriorly into blackish 

 brown throughout. 



Grows to 31 inches. (Tail 8.) 



Inhabits Nipal and Sykkim. 



T. Ceylonensis, Giinther. 

 Prfefrontals obtusely rounded in front, half as large as 

 postfrontals. Loreal square. Two prseoculars, nearly equal. 

 Three narrow postoculars. 8 low upper labials, the fourth and 

 fifth entering the orbit. Colour brownish olive above. A row of 

 about 20 yellow ocelli edged with black along each side of the 



