Measurements. Total length, 432; tail vertel)r;r, 2S; hind 

 foot, 127. 



422. campestri5. (/.i/us), Bachm. Jour. Acad. Nat. Scien. Phil., 



1837, P- 349- 



virginianus, var. Harlan, Faun. Amer., 1825, p. 310. (nee p. 196.) 



/ownsendi, Bachm. Jour. Acad. Nat. Scien. Phil., 1839, p. go, pi. 2. 



Type locality. Valley of the Saskatchewan. 



Geogr. Distr. Middle Kansas northward to the plains of the 

 Saskatchewan, and from eastern limits of the Great Plains westward 

 to the Sierra Nevada Mountains. 



Genl. Char. Larger than /,. americanus, hind feet longer than 

 ears, tail all white, long. 



Color. Summer Pelage. Entire upper parts, sides of legs, throat 

 and pectoral band yellowish gray mixed with dark brown; sides paler; 

 nape smoky white; under surface of head and belly white; legs gray 

 tinged with rusty; tail entirely white. Fringe and border of ears 

 white. 



Winter Pelage. Pure white; in southern localities this hare does 

 not always turn entirely white, and the head and dorsal surface are 

 frequently reddish brown, sometimes almost a pinkish buff. 



Measurements. Total length, 630; tail vertcbr.r, 95; hind foot, 

 153; ear from crown (dried skin), 125. 



A. Limnolagas. 



" Interparietal present as a distinct bone in adults; usually- 

 developed from a single ossific center. Skull and teeth massive; 

 rostral portion wide as high; postorbital process of frontals anchyl- 

 osed with the cranium for its entire length; frontals and parietals 

 deeply pitted; skull rather straight above, about half as wide as long; 

 pelage liarsh; head small; ear, tail and hind foot short, latter scantily 

 hairi'd." (Mearns, Proc, U. S. Nat. Mus., 1895, p. 551, as Hvitro- 

 lagus. Gray). 



423. aquaticus. (Lepus), Bach. Jour. Acad. Nat. Scien. Phil., 1837, 



p. 319, pi. 22, fig. 2. 



Type locality. Alabama. 



Geogr. Distr. Gulf States from Alabama to I'exas and north- 

 ward to southern Illinois in the interior, about Mound City and 

 Cairo; up the Ohio to the Wabash River and "on the Mississippi to 

 Cape Girardeau, and possiby higher where swamps extend." 



Genl. Char. Large or longer than /.. americanus, ears less than 

 length of head: hind foot average shorter than head; incisors very 

 large. 



