18 J. Anderson — Reptilian Accession to the Indian Museum. [No. 1, 



Darjeeling, 5000 feet. 



This description is drawn np from two specimens* that agree 

 in every particular. It is closely allied to G. suhniniatus and 

 T. himaiayanus, but distinguished from them by its dentition, the 

 relatively fewer number of its caudal plates and by its distinctive 

 coloration. 



Hydrophid^. 



Hydrophis tuberculata, n. sp. 



Head slightly broader than the neck and of moderate length. 

 Neck not very slender. Rostral broader than high. Fourth and 

 fifth labials below the eye ; one praaocular and two posfcoculars. 

 Three to four temporals along the side of each occipital, the anterior 

 one the largest and almost entering the labial margin. The nasals 

 are large and quadrangular, and much larger than the frontals 

 which are rounded behind. The vertical is emarginate and much 

 smaller than the elongated occipitals.f All the shields of the head, 

 including the lower labials and the scales in the immediate vicini- 

 ty of the head, are thickly studded over with minute granules. 

 Thirty-eight rows of slightly imbricate scales round the neck, each 

 scale with two prominent tubercles, one before the other. Ventrals 

 321, small, about twice the size of the adjoining scales, irregular, 

 sometimes dividing, those on the fore part of the body largest. 

 Each ventral with several minute tubercles on either side. Four 

 anal shields, the external the largest. Terminal scale of tail mo- 

 derately large, tuberculated at its base. Trunk encircled by 59 black 

 bands, 8 black bars on the tail. The bands are broadest and black- 

 est on the back, contracting on the sides into narrow indistinct lines, 

 continued on to the ventral surface. Ground colour olive yellow 

 above, bright gamboge yellow below. A dark olive patch on the 

 crown of the head with a pale yellowish band from orbit to orbit, and 

 passing backwards through the temporals to the neck. An obscure 

 dark line through the upper labials which are yellowish. Length 

 49 inches. 



* No. 1. Length 35i ; tail 7f. No. 2. Length 34f ; tail 7. 

 f Two large pairs of square-shaped chin-shields in contact with each other 

 and four of the lower labials. 



