1912.] N. Annandale : Batrachia, 17 



Mouth. — A small tooth at apex of lower jaw; no papilla on 

 the tongue ; choanae small, widely separated, situated far forwards. 



Skin. — No latero-dorsal or supratympanic folds. Skin of head 

 and neck smooth, of Vjack beset with small scattered tubercles ; 

 ventral surface smooth. 



Lm6s slender. Fingers slender, free, with large disks; that 

 on third finger as large as tympanum ; first Snger a little shorter 

 than second; subarticular tubercles large, rounded, a little promi- 

 nent ; no metacarpal tubercles. Tibio-tarsal articulation reaching 

 nostril; toes full 3^ webbed; disks a little smaller than those on 

 fingers ; subarticular tubercles distinct but by no means prominent ; 

 a very distinct inner, but no outer, metatarsal tubercle; no tarsal 

 fold. 



Colouration. — Dorsal surface dark slate-gre^^ with a paler reti- 

 culation on the back that gives it the appearance of being faintly 

 ocellated; limbs and fingers conspicuously barred with dark grey 

 and white ; ventral surface dirty white faintly spotted on the throat 

 and chest with grey ; soles of feet and palms of hands dark grey. 



Habitat. — Upper Renging, alt, 2,150 feet. 



Type (a unique specimen). No. 16950 in the Indian Museum 

 register of Reptiles and Batrachia. 



19. Ixalus tuberculatus, Anderson. 



(Plate iii, fig. i.) 



Anderson, Anat. Zool. Res. Yunnan Exp., p. 855, pi. Ixxviii, 

 fig. 7 (1878). 



I think I am right in identifying a series of specimens in Mr. 

 Kemp's collection with this species, but x^nderson's figure is poor 

 and his specimens are not forthcoming for comparison. It is 

 evidently variable in several characters, notably in stoutness of 

 habit, in colouration, in roughness of skin and in the relative size 

 of the disks of the fingers and toes. In some of the Abor speci- 

 mens the skin of the dorsal surface is smooth except for small 

 scattered tubercles, in others the tubercles are so much larger and 

 closer together that it is quite rough ; in some the finger-disks are 

 much smaller than the toe-disks, but in others they are of almost 

 exactly the same size, while some individuals are much stouter 

 than others. In all the ground-colour of the dorsal surface is very 

 dark slate-grey rather than olive, but this may be due to the fact 

 that the specimens had been hardened in formalin before being 

 preserved in spirit. A pale cross-bar between the eyes can usually 

 be detected and there is always a pale patch on the sides near the 

 groin marked diversely with black ; the corresponding surface of 

 the outer margin of the thighs is similarly marked ; in some 

 individuals there is a large dark x-shaped mark on the back. 



Specimens were taken at Janakmukh (600 ft.), in Egar stream 

 between Renging and Rotung, at Rotung (1,300 ft.) and at Kalek 

 (3,800 ft.). At the two last-named localities several individuals 

 were found between the 24th and 29th of December hiding under 



