36 Records of the Indian Museum. [VoL: XI, 
Engystomatidae, they leave the water as soon as the front limbs 
sprout. 
Points of Difference. 
The particulars in which the above description differs from 
Mr. Ferguson’s may be briefly indicated below. 
(1) He states at page 502 of the journal cited above, that the 
length of the body is one and three quarters its breadth 
I have measured ten full-grown specimens and I find the 
average ratio of length to breadth is as 15 : 10 mm, 
in other words the length is one and a half times the 
breadth. 
(2) Further he describes that the distance between the eyes is 
one and a quarter that between the nostrils and is equal to the 
width of the mouth. 
In measuring the same ten specimens, I find that the inter- 
orbital space is more than twice the internasal, and is one 
and two-thirds of the width of the mouth. 
Fic. 2..-Tadpoles of Rana breviceps. 
A. Lateral view. B. mouth. 
(3) Mr. Ferguson states in regard to the spiraculum that it 
is visible above and below. 
In all my specimens the spiracle is so low on the side that it 
is visible from neither view. ‘ 
(4) He makes out that the anal opening is on the middle line. 
All the adult tadpoles in my collection possess a sinistral 
vent. 
(5) The tail is described in the Travancore specimens as being 
acutely pointed. 
Almost all the specimens in my collection show a rounded 
tip. 
(6) In the description of mouth parts, Mr. Ferguson states 
that the upper mandible has a blunt tooth-like prominence and 
that the outermost row of teeth on the lower lip is less than half 
the length of the middle row which again is shorter than the 
upper. 
The prominence spoken of, perhaps such as is met with in 
the larva of R. tigrina, is not discoverable and as regards 
