r-iz 



r-yo 



2''-60 



2''05 



2*-75 



r-60 



2''-85 



2"-30 



r-20 



r-05 



2''- 10 



r'-80 



844 AMPHIBIA. 



granules are grouped into a central band, which expands on the chest into a circular 

 granular area, on a line between the angle of the mouth and the shoulders. Erom 

 the vent to the heel equals the length of the body, or slightly more or less. 



Length tip o£ snout to vent 



„ vent to heel .... 

 J, heel to tip of fourth toe 



These measurements would seem to indicate that the limbs are proportionally 

 larger in the young than in the adult. 



The upper surface and sides are dark greenish-brown, marked with large round 

 blackish-brown spots with ragged edges, and sometimes with light centres. Broad 

 blackish-brown interrupted bars occur on the limbs and feet, and black spots on the 

 upper and lower jaws. The under parts are yeUow with faint brown spots on the 

 fore part of the belly and throat, while in others those parts are immaculate. In 

 the young, the markings are finer, and the bars on the legs more numerous, while 

 the under surface is in no way granular, as in the adult. 



This species is allied to P. marmoratus, but distinguished from it by its small 

 disks and more emarginate interdactyle membrane. This frog, in the tendency 

 which it exhibits to form a glandular fold along the side, serves to link together the 

 two genera JSylarana and Folypedates. 



This species I only met with at an elevation of 4,500 feet in the valley of 

 Hotha. 



Genus Ixalus, Dum. & Bib. 

 IxALUS LATERALIS, Andr., Plate LXXYIII. 



Ixalus lateralis J Anderson, Journ. As. Soe., Bengal, vol. xl, 1871, p. 29. 



These specimens were found under stones in a partially dried water-course on 

 the left bank of the Irawady, about 30 miles below Bhamo. They agree in all their 

 essential particulars with the type, the habitat of which was unknown, but which, 

 from the circumstance that it is a specimen in the Calcutta Museum, we may con- 

 clude was obtained from some portion of the surrounding region, as the collection of 

 frogs in that Institution is exclusively Indian and Malayan. The only points in 

 which I can detect that these Burmese specimens differ from the type are, that in 

 some, the back is slightly tubercular ; in some, there is a large, triangular, dusky 

 olive spot, the base of which extends across, between and upon the eyelids, while its 

 apex is directed backwards ; in others, there are two or more irregular, similarly 

 coloured spots on the back ; these and the interorbital spot being narrowly mar- 

 gined with yellowish. 



The web of the foot is prolonged along the toes as a kind of fringe or mem- 

 branous border. This character had become so obscure in the type, from its beino* 

 preserved in spirit, that it was overlooked. 



In life, the colours are olive above, with a tinge of greenish, and the under 

 parts pale yellowish, marbled with brown. 



