10 CHECK LIST OF THE 



(17) Rana pipiens. 



(Leopard frog.) 



The commonest species, abundant in marshes and wet meadows. 

 It is generally distributed, but the northern limit of its range in our Pro- 

 vince is uncertain. 



(18) Rana palustris. 



(Pickerel Frog.) 



Common and generally distributed. In its habits it is solitary. It 

 is often found about cold springs and streams and sometimes ranges into 

 meadows for food, 



(19) Rana septentrionalis. 



(Northern Frog.) 



The range of this species in Ontario extends from the County of 

 Bruce northward and westward. Not common. 



(20) Rana sylvatica. 



(Wood Frog.) 



This frog is scarcely aquatic. It lives in the woods throughout the 

 summer and rarely if ever visits water except during the breeding sea- 

 son. Like the Hylas, it is susceptible to the colour of its surroundings 

 and is said to change from the tan colour of a dead leaf to the green of 

 a li\ing one with ease. 



(21) Ran? cantabrigensis. 



A similar species to the last, of which it was formerly considered a 

 variety. It ranges as far north as Hudson's Bay. 



(22) Rana clamitans. 



(Green Frog.) 

 An entirely aquatic species, rarely seeking food on land. It has no 

 spring love notes and the tadpoles require two years in which to mature. 



Common in all bodies of water, but perhaps more partial to springs 

 and streams than marshes. 



(23) Rana catesbeana. 



(Bull Frog.) 



The largest of our frogs. Common in marshes and slow weedy 

 streams. They have no spring love notes, but their sonorous bass sum- 

 mer voice is recognized by everybody. The tadpoles require two years to 

 mature. 



Generally distributed. Valued as an article of food. It is from this 

 species that the much esteemed "frogs' legs" are usually obtained. 



