OCHOTONIDvE 



181 



Ochotona schisticeps Mkrriam. (Slate colored — head. ) 



SIERRA NEVADA PIKA. 



Form thickset ; no visible exteriTal tail the short caudal series 

 of vertebrae being folded back and lying wholly within the skin ; 

 ears prominent, broad, rounded, edged with white; whiskers \-erv 

 long: color of pelage varial>le with locrdit}-. from brownish grav 

 mixed with black above and grayish vinaceous cinnamon below, 

 to buffy wdiite mixed with blackish on the back, the biasal half of 

 all the hairs being slatv l>lack in both cases. 



Sierra Nevada Pika. About half Hfe size. 



Length about 1S5 mm. ( 7.25 inches) ; tail vertebrae 13 (.50) ; 

 hind foot 29 ( 1.15) ; ear from crown 17 ( .67). 



Type locality, Donner, Nevada County, California. 



The habitat of the Sierra Nevada Pika is the higher moun- 

 tains of California and northward. It has been found in various 

 places in the Sierra Nevada, \\diite Mountains, Mount 'Lassen, 

 Mount Shasta and in the Warner Ivlonntains. Probably it oc- 

 curs in- various other high mountains of California. Many years 

 ago Prof. Gabb reported it from northern Lower California, but 

 no one has found it there since. 



