34 MAMMALS. 



/. ERETHIZON, F. Cuvier. AMERICAN PORCUPINES. 



1. E. dorsatus, (L.) F. Cuvier. WHITE-HAIRED PORCU 

 PINE. Dark brown, spines chiefly white. N. Am., S. to 

 Mexico. 



FAMILY XVI. LEPORID^E. 



(The Hares) 



Incisors f, the extra pair in upper jaw small, and 

 placed behind the principal pair, which are grooved in 

 front; molars f:|. A single well-known genus, widely 

 distributed. 



/. LEPUS, Linnaeus. HARES. 

 * Fur white in winter. 



1. L americanus, Erxleben. WHITE RABBIT. NORTH 

 ERN HARE. Size large; hind feet longer than head; 

 ears about equal to length of head; fur, in summer, 

 cinnamon brown, in winter, becoming white at the 

 surface, plumbeous at base, with a broad median band 

 of reddish brown. Wooded districts, New England to 

 Minn., and S. to Va., along the Alleganies. 



** Fur never white. 



2. L sylvaticus, Bachman. GRAY RABBIT. Size 

 small; hind feet not longer than head; ears two-thirds 

 length of head; gray above, varied with black, and more 

 or less tinged with yellowish brown; below white. U. S. 

 eastward; less northerly than the preceding. Two 

 Southern species, L. palustris, Bach., the Marsh Rabbit, 

 and L. aquations, Bach., the Water Rabbit, abound in 

 S. Ills. (Nelson.) 



