Reptiles of Massachusetts. 43 
Gape of the mouth large, upper jaw with many 
minute teeth. 'Tympanum plane, circular, rust col- 
ored; four lines in diameter. From the posterior 
angle of the eye acuticular fold extends just over 
the tympanum, along the edge of the back on each 
side, to the posterior part of the body. 
Anterior feet fawn colored above, with several 
indistinct transverse brownish bands ; a dark colored 
band along the posterior edge of the leg, extending 
on to the sole of the foot. Feet four toed. 
Posterior extremities of a darker brown color 
than the anterior; thighs with indistinct bars upon 
their outer portions; buttocks covered over their 
whole surface with irregularly distributed black 
blotches; beneath, a dull white; legs and feet, 
same sole as the extremities of the —— Feet 
five toed. | 
R. halecina. Kalm. The Leopard Frog. 
Shaw's Gen. Zoology, vol. iii. p. 105. 
Journal Academy Nat. Sciences, vol. v. p. 337. 
» N. A. Herpet. vol. i. p. 89, et fig. 
This most beautiful species, called by Kalm the 
shad frog, from its appearing in Pennsylvania in the 
spring of the year, with the shed, is better known 
in this state as the leopard frog, from its ocellated 
appearance. It is exceedingly well marked, and 
considered by alla very pretty animal. 
The upper part of the back, and external side of 
the limbs, brassy, with a metallic lustre. Upper sur- 
face of the body, marked with large distinct irregu- 
