Sierra Nevada Yellow-legged Frog. Western 



Frog. Pacific Frog. 

 Stink Frog. 



Plate LXIII. i, 3. Fe- 

 males (xf). 2. Male (xf). 



Rana boy Hi sierrae Camp. 



Range: California. South- 

 ern half of Sierra Nevada, 

 above 7000 feet altitude from 

 Yosemite National Park on 

 the north to Southern Tulare 

 Co. on the south. 



Habitat: Meadows, streams 

 and lakes from 7000 to 10,500 

 feet in Yosemite Park, and to 

 1 1,500 feet near Mount Whit- 

 ney. 



Size: Adults, 1 3/4-3 3/8 

 inches. (Males, 44-65 mm. 

 Females, 48-84 mm.). 



General appearance: This 

 frog is like Rana boylii boylii, 

 but lacks the light patch on 

 the head. The back is slightly 

 roughened, is dark olive in 

 color with some darker spots 

 showing when he is wet. The 

 under parts are white on the 

 throat, creamy or buff on the 

 belly and the under side of 

 the legs. The throat is marked 

 with black spots. The sides 

 are light heavily mottled 

 with distinct black blotches. 

 The jaw is heavily mottled 

 with light and dark. There is 

 a distinct dark blotch on the 

 upper part of the fore arm. 

 The inner surface of the arms 

 is light, outer surface green- 

 ish, marked with dark 

 blotches. The legs are marked 

 with dark spots. The angle of 

 the jaw forms a swollen light 



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