91 



T. MACROPHTHALMUS, Gthv. 



Scales 19, nmerous on the neck, wliich is dilatable, like 

 that of the cobra. Ventrals 162, subc. 78. Eve laro-e. Dark 

 brown dark vertebral spots and an indistinct >• collar ; belly 

 with anterior square spots. 

 Himalayas. 



T. DORS A LIS, Gth\ 



Scales 17. Ventrals 143, subc. 52. Eye lar^e. Resembles 

 the preceding species. 

 China. 



T. MACROPS, Blyili. 



Scales 17. Ventrals IGi, subc. 13. Eye very large. Dull 

 red, with a vertebral series of yellow spots and black lateral 

 spots ; variable. 

 Darjiling. 



[The following species have the last tooth enlarged and separated 

 by a distinct interval.] 



T. PLATYCEPS, Blyth. 



Scales 19, feebly keeled. Ventrals 173-186, subc. 90-96. 

 Brown, with a pale dorsal stripe ; a red and a black lateral 

 ventral stripe ; black or yellow postocular streak ; variable. 

 Himalayas. 



T. SUBMINIATUS, Rcinw. Plate XV, figs. 3 &; 4. 



Scales 19, keeled. Ventrals 142-168, subc. 61-88. Light 

 brown, with an interstitial colouring of bright red on the 

 neck, of black and yellow on the rest of the body ; yellow >■ 

 collar ; head green, cheeks pink, green and black double 

 post-orbital streak, throat yellow. When young it resem- 

 bles T. stolatus with yellow collar. 

 Burma, Assam, Straits. 



T. HIMALAYAN us, Gthv. 



Scales 19, strongly keeled. Ventrals 171, subc. 85. 

 Brownish olive, with dorsal series of transverse yellow spots ; 

 yellow collar and throat. 



