439 
NOTES ON BATRACHIA. 
By 
C. R. NARAYAN Rao, M.A. 
(With a text block.) 
The delay in publishing the following notes, dealing with a part of my collec- 
tion of batrachians made in 1918, is due to the fact that Dr. Boulenger’s manual, 
Fauna of British India, Reptilia and Batrachia, was found inadequate for the 
purpose of accurately determining the species. The publication of his recent 
memoir on the genus Rana has rendered the situation, at least a part of it, 
comparatively easy. In order to make the ground surer, my specimens were 
sent to the British Museum to be compared with the large series of collections 
at that institution, where they were kindly examined by Miss J. B. Procter to 
whom my grateful thanks are due. I quote freely from hor letter regarding 
every specimen subjected to her examination and I have given full reasons for 
differing from her in cases where I have done so. 
RaNA GRACILIS MONTANUs var. noy. (sub-genus Hylorana.) 
Vomerine teeth in short, oblique series between the choanae, farther from each 
other than from the latter.* 
Head well depressed, longer than broad ; the upper surface of the head slightly 
concave with a prominent U-shaped glandular fold ; the two limbs of the 
fold run close to the upper eyelid, and diverge in front of the eye. The broad 
angle of the fold extends as far back as the end of the head.* Snout obtusely, 
projecting beyond the mouth : the length of the snout is distinctly greater than 
the diameter of the eye. Canthus rostralis distinct; loreal region vertical, slightly 
concave. Nostrils nearer the tip of the snout than the eye. The interorbital 
width is considerably broader than the upper eyelid ;* the distance between the 
nostrils is shorter than the interorbital space.* Tympanum very distinct, = to 3 
the diameter of the eye, separated from it by a space equal to a third or exceeding 
a third of its diameter.* 
Anterior limb,—Fingers slender, swollen at the tips, first finger longer than 
the second ; the third considerably longer than the snout or 14 to twice the 
diameter of the eye. Subarticular tubercles large and prominent. 
Hind limb.-—Long and slender, the tibio-tarsal articulation reaches far beyond 
the snout :* heels strongly overlap when the limbs are folded at right angles to 
the body. Tibia 4°5 to slightly 6 times as long as broad ;* 14 to 1} times in the 
length from snout to vent ;* shorter than the forelimb ; much longer than the 
foot.* Toes long and slender ; tips dilated into small discs, longer than broad 
with a horse shoe-shaped groove separating the upper surface from the lower. 
Half-webbed, three phalanges of the fourth, one of third and fifth toes free. 
Outer metatarsals separated by a web. Subarticular tubercles as big as those 
of fingers and prominent. No tarsal fold. Inner metatarsal tubercle blunt 
prominent, suboval 4 to }th the length of the inner toe. A rounded outer- 
metatarsal tubercle on the base of the fourth toe. 
Skin smooth above. A moderate dorso-lateral fold from above the tympanwn 
to the groin. The greatest distance between the dorso-lateral folds on the back 
is ith the length of head and body.* A second or ventro-lateral fold is absent, 
A short fold, rather interrupted behind, from the end of the snout or beneath 
the eye to the shoulder. A few glandules simulating a fold on the shoulder. 
Colour.—Olive-brown above: sides of head and body dark-brown. Dark 
spots frequently present on the back in younger specimens. The dorso-lateral 
glandular fold pale-brown or whitish, edged with a dark streak to the tip of the 
snout. Tympanum reddish. Upper lip white. Dark broad bands on both 
