170 



VERTEBRATE ANIMALS OF THE UNITED STATES 



90 mm.; hind leg 150 mm. : North America, east of Sierras; absent from 

 much of the Appalachian and piedmont regions; southward into Mexico; 

 the commonest frog; in ponds, marshes and meadows, often at a con- 

 siderable distance from water. 



R. palustris LeConte. Pickerel frog (Fig. 94). Body pale brown 

 above, with 2 light dorso-lateral ridges, between which are 2 rows of 



Fig. 93. — Rana pipiens {from Park 

 Museum Bulletin). 



Fig. 94. — Rana palustris {from Park 

 Museuin Bulletin). 



large squarish or rounded spots; the sides and legs with similar spots; 

 beneath white in front and yellowish behind; length 70 mm.; leg 115 

 mm. : North America, from the Atlantic to Wisconsin, Kansas and 

 Louisiana in small streams and ponds or in adjacent meadows. 



R. clamitans Latreille. Green-frog; spring-frog. Body large, 

 usually green on the head and shoulders and brown posteriorly, and 



Fig. 95. — Rana sylvatica {from Dickerson). 



with small irregular spots ; dorso-lateral ridges light ; sides and legs with 

 dark bars and spots; throat of male yellow, of female white; belly 

 white; length 100 mm.; hind leg 150 mm.: America, from the Atlantic 

 to the Great Plains; common in ponds and streams; except the bullfrog, 

 the most aquatic and the largest frog; development of tadpole com- 

 pleted in the second summer. 



