6 



THE BIOLOGY OF THE FROG 



C. alleghaniensis, of the eastern United States. This species 

 may reach a length of twenty inches. Its body and head 

 are much flattened, and the sides are bordered with curious 

 fluted folds of skin. The eyes are relatively very small. 

 The hellbender is very sluggish in its habits, but it is, 

 nevertheless, a very voracious eater. Its vitality, judging 

 from an account by Mr. Frear, 1 is certainly remarkable. 



m 



Fig. 3. — Amphiuma means. (From the Cambridge Natural History.) 



Mr. Frear tells of one specimen which had been picked up 

 after it " had lain exposed to a summer sun for forty-eight 

 hours." It was then brought into the museum and left a 

 day before it was placed in alcohol. After it had been left 

 in the alcohol " for at least twenty hours " it was taken out, 

 "when it began to open its big mouth, vigorously sway its 

 1 Am. Nat., Vol. 16, 1882. 



