IQQ RANA SYLVATICA.. 



the posterior extremity of the body. The flanks below these lines are mottled in 

 front, greenish-white in the middle, and yellow near the thighs. The inferior 

 surface is silver-white at the throat and anterior pai't of the abdomen; yellowish- 

 white on the posterior part, and yellow near the thighs. 



The anterior extremities are short, coloured above like the back, with a dark 

 brown band running from the humerus towards the lower jaw, and another 

 interrupted black line on its posterior border. The fore-arm is blotched, or 

 banded with dusky: the palms are more tuberculous than usual; there are four 

 fingers, distinct, flesh-coloured on their inferior surface. The posterior extremities 

 are extremely long, coloured like the back, with regular transverse bands of 

 darker brown continued to the feet; beneath, the thigh is flesh-coloured and 

 granulated behind, white and smooth in front, and yellow near the abdomen. 

 There are five toes, well palmated, but not to their tips, dark above and flesh- 

 colour below. The tips of the fingers and toes are slightly enlarged and obtuse. 



Dimensions. Length of the body from the snout to the vent, If inches; of the 

 thigh, 1 inch; of the leg, H inches; of the tarsus and toes, 1| inches: total length, 

 from the snout to the extremities of the toes, Sf inches. 



Geographical Distribution. The Rana sylvatica I thought was confined to 

 the Atlantic states, from New Hampshire to Virginia, but Dr. Kirtland informs 

 me that they are common in the woods of Ohio and of Michigan. 



Habits. This frog is found, though not abundantly, in the woods of the 

 northern and middle states, choosing thick forests of oak. It is active, and when 

 pursued, conceals itself among dried leaves, the colour of which it so nearly 

 resembles as to be discovered with difiiculty. In general it is found far from 

 water, which it only approaches in the breeding season. 



General Remarks. I cannot find any notice of tiiis frog previous to the 

 memoir of Leconte, in which it is indicated under the very appropriate name of 



