136 HYLODES PICKERINGII. 



DijfENsioNs. Length of head and body, llj lines; length of thigh, 5| lines; 

 length of leg, 5j hnes; length of tarsus and toes, 9j lines. 



Habits. The Hylodes Pickeringii is most commonly found on the ground, 

 though at times I have seen it waiting for its prey on the leaves of shrubs and 

 plants growing near the water, as Cephalanthus occidcntalis, Osmunda cinna- 

 momea, &c. It feeds on small insects, as flies, &c. 



Geographical Distribution. This animal is found in Massachusetts, and is 

 particularly abundant, according to Dr. Pickering, in the vicinity of Salem. Dr. 

 Dekay and Mr. Cooper have observed it in New York, and there is a specimen in 

 the Museum of the Academy of Natural Sciences, found in the neighbourhood of 

 Philadelphia. 



General Remarks. Dr. Pickering several years since called my attention to 

 this animal as one undescribed, and to him I have dedicated the species. It 

 seems hitherto to have been confounded by some naturalists with the Hyla 

 squirella, from which it may at all times be distinguished, by the absence of the 

 white line reaching along the upper lip to the fore-shoulder; by the difference of 

 marking about its back; by its smaller size; by its extremities being less propor- 

 tionably developed; and by the wide difference in its geographical distribution. 

 Others again have considered it a remarkable variety of the Hyla versicolor, from 

 which, however, it is specifically distinct, never reaching half the size of that 

 animal, and never having the skin granulated. 



