122 



VERTEBRATES : BATRACUIANS. 



enable them to move along the trunks, branches, and 

 leaves of trees. Here they live, except when they go into 

 the water to lay their eggs. One of the tiny Tree Frogs, 

 named Pickering's Hylodes, makes the 

 high piping note, which in spring is 

 heard in New England and in the 

 Middle States throughout the night. 

 It is found upon plants near to stag- 

 Fig. 1S4. — Picker- nant pools, and in woods. 



ing's Hylodes. jj-jg American Toad is very useful to 



the farmer and gardener, in destroying insects. 



Salamanders, Tritons, Sirens, etc. 



Salamanders are Batrachians which have a long body 

 and long tail, and which live upon the land, except 

 when they go to the water to lay their eggs. There 



Fig. 185. — Salamander. 



are many kinds in North America, \'arying from three 

 to twehe inches long. They are found mostly under 



Fig. 186. — Triton. 



stones, fallen trees, and rubbish. Tritons have nearly 

 the same form, but live in the water. Tritons have 

 the most wonderful power to repair or renew injured 

 or lost parts. The legs may be cut off, and in less 



