ORDER IV. 



BATRACHIA. 



Rana. Lin. 



Generic characters. Body covered with a smooth skin ; 

 upper jaw furnished with a row of minute teeth ; another in- 

 terrupted row in the middle of the palate ; no post-tympanal 

 glands ; postei'ior extremities long, and in general fully pal- 

 mated ; fingers four ; toes five in number. 



R. pipiens. Lin. The Bull-frog. 



Shaw's Gen. Zoology, vol. iii. pt. 1. p. 106, et fig. 

 Harlan's Med. aud Phys. Res. p. 101. 

 N. A. Herpetol. vol. iii. p. 81, et fig. 



This is by far our largest species of frog ; it inhabits ponds, 

 ditches, and pools of stagnant water, but is not common in 

 this portion of the State. 



A specimen lying before me twelve inches in length, serves 

 for my description. Greatest width nearly three inches. 

 Color above, a light green, with sparse dusky spots upon the 

 back ; head green. Sides of the body, brownish ; beneath, 

 white ; throat yellow. Legs, more or less barred with dull 

 transverse bars. Fore legs, including toes, three inches in 

 length ; above, of a dull greenish brown color, with indistinct 

 brownish transverse bands ; beneath, white ; four toed, that 

 next the outer, the largest, each with three small tubercles at 

 the joints of the phalanges. Posterior extremities, seven and 

 a half inches long, of a similar color with the anterior extremi- 

 ties ; the upper anterior half of the thighs barred with brown 

 bands ; the upper posterior portion, greenish brown, with an in- 



