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nasal. Second much larger, just touches nasal, broadly the fronto- 

 nasal, and narrowly the lower prseocular. 



The third touches the lower prseocular and subocular. The 

 fourth is slightly less than the third, and only narrowly touches 

 the subocular, and more broadly the lower postocular. 



Scales of body in 18 longitudinal and 390 transverse rows. 

 Tail nearly three times as long as the head and terminating in a 

 minute point. 



Colour above deep brownish black, sides vinaceous. Below 

 paler, mottled with white. Inhabits the Andaman islands. 



b. The frontonasal separated from the labials by the intervening 

 nasal and prceocular shields. 

 T. braminus Daud. 



Kostral one-third as broad as the head, not much broader 

 above than below. Nasal entirely separate from the frontonasal, 

 but in contact with the prseocular below the frontonasal. Upper 

 part of frontonasal almost as broad as the rostral, behind which 

 it reaches, but without touching its fellow on the other side. 

 Prseocular and ocular equal. Eye very distinct. First labial in 

 contact with rostral and nasal. The second with nasal and prseocu- 

 lar but not with the frontonasal. The third slightly ascending 

 between the prseocular and ocular. The fourth below the ocular 

 and extending farther backwards. Frontal, supraoculars, and 

 parietals equal. Head shields with a pale crenulate margin. Body 

 rather thicker behind than in front. Scales of body in 20 longi- 

 tudinal and 316 transverse rows. 



Colour uniform brown, paler below. 



Grows to 8 inches. Circumference yV^h of entire length. 



Inhabits Ceylon, Bengal, N. W. and Central India, Tenasserim, 

 and the Malay Archipelago (Stol.) 



T. pammeces, Giinther. 



T. tenuis Giinther (prseoc.) 

 Closely allied to braminus but of much slenderer proportions. 

 Scales of body in 20 longitudinal and 366 transverse rows. 

 Circumference iith of entire length. 



