84 RANA HORICONENSIS. 



Dimensions. Length from snout to rump, 3i inches; length of thigh, 1 inch 8 

 hnes; of leg, 1 inch 8 lines; of tarsus and toes, 2 inches 2 lines. 



Habits. Nothing peculiar is known of the habits of the Rana horiconensis. 



Geographical Distribution. The only place where this animal has been 

 observed is at the outlet of Lake George, w^here I found it in 1834. 



General Remarks. There can be little doubt that this is a distinct species of 

 frog. It differs from the Rana fontinalis in colour as well as in size; in the latter 

 respect it approaches the Bull-frog, from which, on the other hand, it differs in 

 being provided with two ridges, or cutaneous folds, along the back; nor can it be 

 the Rana melanota of Rafinesque, as it wants the "yellow streak on the sides of 

 the head." Another reason for believing this to be an undescribed species of frog 

 is its geographical distribution, which is just at that point where the waters run 

 north to the St. Lawrence, instead of going south to the Hudson river. 



The name I have given it marks its habitat, Horicon being the ancient Indian 

 name of that beautiful sheet of water now^ called Lake George. 



