196 THE AMERICAN MUSEUM JOURNAL 
With the first mild days of spring, the bogs and marshes re- 
sound with the cheery, piping notes of the males of this species, 
the peculiar character of which has given rise to the popular 
name of “Peeper.’’ Specimens are difficult to find, since they 
hide among the blades of the coarse grass, and when disturbed 
take refuge inthe water. After the breeding season the animals 
Miss Mary Dickerson, Photo. 
FIG. 21. ANDERSON’S TREE TOAD 
leave the bogs and live among the leaves and low bushes and 
rank vegetation, and their sharp cries are seldom heard. To 
produce the piping cry, so intense and penetrating for so small a 
creature, the male fills his vocal sac with air until it is more than 
half the size of the body. Then the air is expelled with such 
energy that the sides of the tiny creature become hollow with 
the convulsive effort. The eggs of this species are deposited in 
small masses and hatch quickly. The tadpoles undergo a rapid 
metamorphosis. 
