Northern Chorophilus. Northern Pseudacris. 



Northern Striped Tree 

 Frog. Spotted Tree Frog. 

 Northern Spring Peeper. 

 Peeper Frog. Swamp 

 Whistler. 



Plate XXXI. i, 3, 4. Fe- 

 males (xi). 2. Male (xi). 

 5. Female (xi|). 



Pseudacris nigrita septen- 

 trionalis (Boulenger). 



Range: Canadian north- 

 west, Minnesota to Montana. 



Habitat: Swampy borders 

 of rivers, lakes, and ponds. 



Size: Adults, 3/4-1 2/5 

 inches. (Males, 19-32 mm. 

 Females, 19-35 mm.). 



General appearance: Pem- 

 bina, N. D. This is a small, 

 long-bodied, short-legged tree 

 frog. The snout is pointed. 

 The color may vary from a 

 gray to tawny or buff. The 

 most prominent marks are 

 the dark brown lateral stripe 

 from snout to groin, and the 

 light creamy stripe on the 

 jaw below the eye. Certainly 

 when seen at rest, you are 

 impressed with the very short 

 hind legs in sharp contrast 

 with the long body. It has 

 five darker stripes down the 

 body. The median dorsal one 

 may be broken into dots, the 

 two latero-dorsal stripes are 

 more constant and the lateral 

 ones most prominent. The 

 male has a greenish yellow 

 throat, the female, a light 

 throat. The legs of the female 



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