Frogs of the Genus Rana. 415 
males of which differ in the very large head with strong 
swellings on the lower surface of the mandible and on each 
side of the occiput, and in the presence of a strong tooth-like 
process on each mandibular ramus, near the symphysis, as in 
RR. kuhlit and R. macrodon. In these males, when fully 
developed, the interorbital region is broad and very convex, 
the swelling produced posteriorly as in Pelobates fuscus, and 
the tympanum is quite as large as or even larger than the 
eye. Females are hardly distinguishable from &. doria. 
From snout to vent 57 mm, 
The types are from the Karin Hills, Upper Burma, 1300 
to 1600 feet, and from the district of the Karin Bia-po, 
collected by the late L. Fea. 
R. macrognathus is intermediate between R. dort, Blegr., 
and &. pileata, Blgr., and nearer the latter, which differs in 
the dermal flap on the head of the males and in the usually 
smaller inner metatarsal tubercle. 
Rana grahami. 
Vomerine teeth in transverse or slightly oblique series 
between the choane or extending a little beyond the level of 
the posterior borders of the latter. Head as long as broad or 
a little broader than long, much depressed ; snout rounded or 
obtusely pointed, feebly or rather strongly projecting beyond 
the mouth, as long as the eyeor a little shorter; canthus 
rostralis obtuse ; loreal region feebly oblique, concave; inter- 
orbital region narrower than the upper eyelid ; tympanum 
very distinct, ? to 2 the diameter of the eye. Fingers rather 
long, the tips feebly swollen, first as long as or a little longer 
than the second; subarticular tubercles moderate. Tibio- 
tarsal articulation reaching the tip of the snout or a little 
beyond; heels overlapping when the limbs are folded at right 
angles to the body; tibia 13 to 1% times in length from 
snout to vent, shorter than the fore limb, as long as or a 
little Jonger than the foot. Toes with the tips slightly 
swollen, entirely webbed ; subarticular tubercles rather small ; 
no tarsal fold ; inner metatarsal tubercle feebly prominent, 
4 to 2 the length of the inner toe ; no outer tubercle. Skin 
smooth above or finely corrugated, often with large flat warts 
on the back; sides granular with large warts, some of which 
may bear minute white spinose tubercles; a broad glandular 
dorso-lateral fold sometimes present, but much broken up ; 
one or two large glands behind the angle of the mouth ; 
lower parts smooth or posterior part of belly granular. Olive 
above, with more or less distinct darker spots and often 
