106 HYLA SQ,UIRELLA. 



four in number, distinct, and each terminating in a viscous pellet. The posterior 

 extremities are long, green above obscurely blended with dark brovrn, and flesh- 

 coloured beneath, tinged with yellow externally; the lower surface of the thigh is 

 granulated; the toes are five in number, and semipalmated. 



Dimensions. Length of body and head, IJ inches; of the thigh, I of an inch; 

 of the leg, T of an inch; of the tarsus and toes, -fo of an inch. 



Geographical Distribution. Its most northern limit must be considered as 

 lat. 34°; — we have no evidence of its being found farther north. It aboimds in 

 South Carolina, Georgia, and Florida; — how far west of these States it may exist 

 cannot at present be determined. 



Habits. This animal is found on trees, often seeking shelter under the bark 

 of such as are decaying; it frequently chooses old logs for its place of hybernation. 

 In fine weather and after showers, it climbs even the highest trees in search of 

 insects. 



General Remarks. The colours of this animal are even more changeable than 

 in any species with which I am acquainted — I have seen it pass in a few 

 moments from a light green, unspotted and as intense as that of Hyla lateralis, to 

 ash colour, and to a dull brown with darker spots: the spots also at times taking 

 on different tints from the general surface. The markings, too, vary exceedingly 

 in different individuals, the white line on the upper hp and the band between the 

 orbits alone presenting some constancy. Daudin remarks that the leg is "shorter 

 than the thigh;" we have found them nearly equal in length, and this character is 

 by no means so conspicuous as in H. versicolor. 



Daudin first described this animal and gave a figure of it, from a drawing fur- 

 nished him by Bosc. Leconte has given the latest and most detailed account of 

 it, establishing three principal varieties, in one of which the spots, as well as the 

 yellow on the thighs, disappear altogether. 



