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splash on either end, and anteriorly a pair of median dots also. 

 Lips black spotted. 



Grows to 32 inches. (Tail 10.) 



Eanges from Simla to the Khasi, Garo and Jyntea hills and 

 round to the Arakan range (Nioungjo), and Upper Burmah and 

 Yunan. 



A. Nikobariensis, Stol. J. A. S., 1870, p. 184. 



Prsefrontals broader than long, half the size of the posterior. 

 Vertical sub-trigonal, large, with a very short point in front and 

 rapidly contracting behind, larger than the superciliaries. Each 

 occipital one-fourth larger than the vertical, and extending to 

 the lower postocular. Loreal and postnasal united. Prseocular 

 one, large, squarish. Postoculars two, small. Upper labials 7, 

 the third and fourth entering the orbit. Posterior labials divi- 

 ded in two. The first pair of labials form a suture followed by 

 two pair of sub-equal chin shields. Anterior half of body red- 

 dish brown above, posterior blackish grey. Head above black- 

 ish. The three first labials with yellow spots. A short yellow 

 streak from the eye to the gape. A black collar, yellow mar- 

 gined with an interrupted yellow band, more distinct before. 

 An undulating row of dark dorsal spots. Sides grey marbled, 

 rounded above with a line of closely set black spots, then dusky. 

 Below yellowish with a red tinge. Ventrals black spotted. 



Grows to 17-50 inches. (Tail 4-50.) 



Inhabits Kamorta (Nikobars). 



Ctclophis, Gunther. 

 Form rather slender. One nasal shield pierced by the nostril- 

 Karely two nasals. Scales smooth in 15 rows. Eye moderate 

 with round pupil. 



C. frsenatus, Giinther. 



G. monticola, Blyih {not Gunther). 

 Rostral broader than high. Prsefrontals much broader than 

 long, sub-quadrangular, not quite half as large as the post- 

 frontaJs. One prseocular. Two postoculars. Loreal square 



