1891.] W, L. Sclater — Notes on the Snahes in the Indian Museum. 241 



in Ramri Island on the Arakan coast is a very faded specimen of Pseu- 

 doxenodon macrojo?. 



The description of T. angusticeps seems to refer to both the lat- 

 ter species, T. hydrus and to Pseudoxenodon macrops. 



Tropibonotus pealii, sp. nov. (Plate VI, fig. 4.) 



Eye moderate, its diameter hardly equal to its distance from the 

 nostril ; rostral just visible from above ; internaaals broadly truncated 

 anteriorly, suture between them shorter than that between the prefron- 

 tals ; fiontal longer than its distance to the end of the snout, shorter than 

 the parietals ; loreal nearly square ; 1-2 preoculars ; 2-3 postoculars ; 

 temporals 2 -|- 2 ; upper labials nine, fourth and fifth entering the eye ; 

 five pairs of lower labials in contact with the anterior chin shields, which 

 are shorter than the posterior. Scales in 19 rows, strongly keeled, outer 

 row also keeled but not so strongly as the rest ; ventrals 142-144, sub- 

 caudals 75-77, anal entire. 



Colour in spirit dark brown above, with a narrow light longitudinal 

 line on either side, edged rather darker reaching the length of the body, 

 below on either side occupying the lateral scales bordering the venti'als 

 another light and much broader band two scales wide ; head dark brown 

 above, the upper and lower labials and rostral yellow, edged and blotched 

 with brown, ventrals very dark brown each tipped laterally with light 

 yellow, the longitudinal band so formed enlarges anteriorly to form a 

 large white mark under the posterior lower labials 5 an indistinct yellow 

 line along the middle of the ventral shields rather more conspicuous pos- 

 teriorly. 



Total length, 20 in. ; tail 5 in. 



This species is a very well marked one in every way ; it differs from 

 all the other Indian species (except T. plumbicolor ?) in having an undi- 

 vided anal shield ; apart from this it is perhaps somewhat allied to Tro- 

 pidonotus parallehis with which it agrees in having a small eye and the 

 outer row of scales keeled. 



There are in the Indian Museum two examples of this snake, both 

 collected in the Sibsagar district of Assam by Mr. S. E. Peal, who has 

 contributed very largely to our collection of snakes and after whom I 

 have much pleasure in naming this fine new species. 



Teopidonotus nicobarbnsis, sp. nov. (Plate VI, fig. 5.) 



Eye large, its diameter exceeding its distance from the nostril • 

 nostril just visible from above ; internasals truncated, suture between them 

 and between the prefrontals about equal in length ; frontal longer than 

 its distance to the end of the snout, very nearly as long as the parietals ; 



