338 OCHOTONA. 



846. Ochotona princeps (Richardson). 



Lepus princeps Richards., Zool. Journ., iii, 1828, p. 520. 



Ochotona princeps ElHot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 267, fig. 61. Zool. Ser. 

 Chief Pika. 



Type locality. "Stony places in the Rocky Mountains"; probably 

 in northern British Columbia, Canada. 



Geogr. Distr. Rocky Mountains in British Columbia, to the south 

 branch of the Mackenzie River. 



847. Ochotona schisticeps (Merriam). 



Lagomys schisticeps Merr., N. Am. Faun., No. 2, 18S9, p. 11. 

 Ochotona schisticeps Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 

 II, 1901, p. 267. Zool. Ser. 

 Gray-headed Pika. 



Type locality. Donner, Placer Coimty, California. 

 Geogr. Distr. Sierra Nevada Mountains, California. 



848. Ochotona cinnamomea Allen. 



Ochotona cinnamomea Allen, Bull. Brookl. Inst. Arts & Scien., i, 

 No. 5, 1905, p. 121. 

 Cinnamon Chief Hare. 



Type locality. Briggs Meadows, Beaver Range, Beaver County, 

 Utah. Altitude, 11,000 feet. 



Geo9j. Distr. Unknown. 



Genl. Char. Size small. Skvill similar to that of 0. schisticeps, 

 less convex, more depressed; audital bullae smaller. 



Color. Above pale cinnamon rufous, varied with black on dorsal 

 region; sides dull cinnamon; top of head and nape gray tinged with 

 buff; hairs tipped with black; under parts grayish washed with buff; 

 ears blackish externally, narrowly edged with white; inside grayish 

 dusky; fore feet above bufify gray, soles silvery gray; hind feet soles 

 black. 



Measurements. (Dried skin.) Hind foot, 27; ear, 23; none other 

 given. 



849. Ochotona collaris (Nelson). 



Lagomys collaris Nels., Proc. Biol. Soc. Wash., viii, 1S93, p. 117. 



Ochotona collaris Elhot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 268. Zool. Ser. 

 Collared Pika. 



Type locality. Near head of Tanana River, 200 miles south of 

 Fort Yukon, Alaska. 



