91 



T. MACEOPHTHALMUS, Gthr. 



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

 that of the cobra. Ventrals 162, subc. 78. Eye large. Dark 

 brown dark vertebral spots and an indistinct s» collar ; belly 

 with anterior square spots. 



Himalayas. 

 T. DOESALis, Othr. 



Scales 17. Ventrals 143, subc. 52. Eye large. Resembles 

 the preceding species. 

 China. 



T. MACEOPS, Blyth. 



Scales 17. Ventrals 164, 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, Revnw. 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 s» 

 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. HIMALAYANaS, Othr. 



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

 Brownish olive, with dorsal series of transverse yellow spots ; 

 yellow collar and throat. 



