252 Zoological Society : — 



blackish vertical band. When asleep, the dark spots disappear en- 

 tirely, the ground-colour becomes lighter, the green dots are very 

 indistinct, and the numerous tubercles with which the skin is covered 

 are whitish at the top. The pupil is contracted into a minute square 

 opening, from which four black lines radiate. 



This species is very nimble in its motions, making great leaps 

 when pursued, and darting after flies from 8 to 10 inches distant; 

 but it frequently misses its aim in these attempts. I have heard 

 it emit a sound, but only when it was caught, and which I cannot 

 otherwise describe than by comparing it with that emitted by Hyla 

 arborea under similar circumstances. 



Hyla Krefftii. — A single specimen of this species, lately de- 

 scribed by myself*, being in the collection, I am enabled to give 

 a description of the natural colours. A broad brown band com- 

 mences between the eyes and extends to the vent, occupying the 

 back almost entirely ; it is lighter along the middle ; another dark- 

 brown band descends obliquely from the eye to the humeral pit ; 

 the sides are light reddish olive, and covered with minute brown 

 dots, like the back. The hind part of the thigh is of a beautiful 

 purple colour. This species changes its colours but little ; but they 

 appear darker and the markings more intense when the animal is 

 awake than when asleep. Our specimen is much less greedy and 

 less active than K. Peronii, although it is not less slender, and makes 

 leaps as long as the other species ; it selects its hiding-place on the 

 ground below some stones. I have not heard any voice from it ; 

 but I am not certain about its sex. 



Hyla phyllochroa, n. sp. — Snout rather short, broad, with the 

 canthus rostralis angular. The vomerine teeth form two very small 

 groups, situated behind the level of the hinder edge of the inner 

 nostrils. Tympaimm distinct, much smaller than the eye. Tongue 

 scarcely notched behind. Perfectly smooth above ; belly granular ; 

 a fold across the chest. Fingers one-fourth webbed ; the membrane 

 between the toes does not extend to the terminal disk. Uniform 

 green above, white below ; a very narrow, shghtly prominent black 

 line, edged with yellow superiorly, runs from the eye, above the 

 tympanum, to the side of the body, where it is lost. 



Besides the living specimen in the Society's menagerie, I have exa- 

 mined three others in the British Museum (two from Sydney, received 

 through Messrs. Cuming and KreiFt, and one from Errumanga, new). 

 This species possesses the faculty of changing its colours only in a 

 slight degree ; it is generally of a uniform light sap-green, which, 

 under certain circumstances, becomes darker. I have not heard a 

 voice from it. Those in the British Museum are females ; the largest 

 has the ovaria fully developed, and measures 17 lines from snout to 

 vent ; the hind leg 29 lines. 



Notice of a Nkw Species of Batagur from North-western 

 India. By Dr. J. E. Gray, F.R.S., F.L.S., etc. 

 Sir Andrew Smith, M.D., lately sent to the British Museum, 

 * Ann. & Mag. Nat. Hist. 1863, xi. p. 28, pi. 4. fig. C. 



