1870.] Indian and Malayan Amphibia and Reptilia. 151 



The disks of the fingers and toes are well developed, on the latter 

 the web reaches fully up to the tip of the third and fifth toes. The 

 second and fourth fingers are sub -equal, and the third is about one- 

 third longer than the fourth. Two metatarsal tubercles are present, 

 the marginal one at the base of the first toe is elongated and later- 

 ally strongly compressed, the other which is smaller and rounded 

 is placed at the base of the fourth toe. The length of the body 

 (measured in 8 full grown and 5 young specimens), is somewhat 

 more than the distance between the anus and heel, and the fourth 

 toe is shorter than half the length of the body. The following are 

 the actual measurements of two of the largest specimens : 



<? ? 



Length of body, 2 inch. l|f inch. 



Distance from vent to heel, lif ,, 1 jf ,, 



Length of fourth toe, if ,, |-f ,, 



Total length of hind limb, 3 T ^g- „ 3 T 3 g- ,, 



In comparing these measurements with those given of the Moul- 

 mein H. Tytleri, the two will be found to be almost identical. And 

 this first led me to believe that the present species may only 

 be a variety of Tytleri (f erythrcea), but the larger tympanum 

 of Nicobariensis, the usual total want of the short downward bent 

 lower glandular fold, the better developed disks of the fingers 

 and toes, the greater length of the third finger, then the presence 

 of two almost sub-equal tubercles at the base of the toes, a distinctly 

 larger gape of the mouth, somewhat more distant ridges of vomerine 

 teeth, &c, &c, are so well marked in all the specimens examined that, 

 on comparing them with the corresponding characters of Tytleri, the 

 conclusion seems fully justified that the Nicobar form indicates a 

 sufficiently distinct specific type. 



Colour above olive greenish, much darker and almost black in 

 some male specimens, upper glandular fold pale, upper lip whitish, 

 lower glandular tubercles usually purely white ; sides of body includ- 

 ing the loreal region black, which uniform colour, however, fades on 

 the posterior part of the body and is sometimes replaced there by a 

 few dark spots. Lower parts more or less mottled with black, some- 

 times almost wholly black in the males, but yellowish between the 



