58 Hollister — Two Neio American Pikas. 



guishable from cuppes or princeps on the north, and from saxatilis on the 

 south, by the small size of the skull, together with the slight, but con- 

 stant color differences. 



Ochotona uinta sp. no v. 



Type from Uintah Mountains, Utah. Adult, skin only. U. S. National 

 .Museum, No. 9750. Collected September 28, 1870. F. V. Hayden. 

 Orig. No. 567. 



General characters. — Differs widely from Ochotona cinnamomea in the 

 comparatively uniform color of the upperparts, without gray on head, 

 shoulders, and ears. More generally brownish than 0. saxatilis, with 

 less yellowish-buff and black in coloration. 



Color. — Upperparts from head to tail uniform clay color, finely lined 

 with darker brown; head darker than back; underparts cream buff. 

 Hands and feet yellowish buff. Ears dark brown, edged with buff and 

 with tuft of buff colored hairs inside. 



Remarks. — The peculiar color of this new species at once distinguishes 

 it from all other American pikas. The close color resemblance to Ochotona 

 bedfordi of Asia is remarkable. Three specimens from the type locality, 

 all in full fall pelage, are at hand ; but, unfortunately, all are without 

 skulls. An old, faded, specimen from the Wasatch Mountains, Utah, is 

 probably of the same form. 



