40 BANGS — TWO NEW PIKAS a 
brownish suffusions, and with an ashy collar. In many respects 
it agrees closely with Mr. Nelson’s description of Ochotona collaris 
of Alaska.* Coming from the main chain of the Rocky Moun- 
tains between the type locality, ‘“‘ River of the Mountains or south 
branch of the Mackenzie,” of true Ochotona princeps (Richardson) 
and that of the Colorado form, these skins are of special interest. 
It is my belief that this form, the Alaska animal and true OQ. 
princeps are all rather closely related. 
The fourth form, which I give a new name, is the pika of the 
high mountains of Colorado. It has been known for many years 
but has passed as true O. princeps, from which, however, there can 
no longer be any doubt of its distinctness. It is a large form, 
with very large skull, with long rostrum and nasals. It never 
shows the hoary coloring and ashy collar of the Banff examples. 
In general coloring it is very yellow or ochraceous, sometimes 
being entirely of this color, except for the brownish black hairs 
scattered along the back. 
The pikas all vary very much with season, and a good deal 
individually, but I have been careful always to make comparisons 
between specimens of approximately the same dates and in the 
same condition of pelage. 
Ochotona cuppes’ sp. nov. 
Type, from Monishee Divide, Gold Range, B. C., altitude 4000 feet, o 
adult, no. 7389, coll. of E. A. and O. Bangs, collected Aug. 2, 1897, by Allan 
C. Brooks. 
General characters.— Size rather small; colors dark, with much rich tawny 
about head, neck and under parts; skull similar to that of O. minimus, with 
short nasals and rostrum, rather large audital bullz, and short palatine fossa. 
Color.— Base of fur everywhere slate gray, the tips, only, otherwise colored. 
Type, in rather shabby pelage: general color above rich brown, becoming 
pure tawny ochraceous on cheeks, sides of neck and lower sides, mixed with 
blackish-tipped hairs on top of head and along back; a patch of buffy hairs 
behind ear; chin buffy, a broad band of rich tawny ochraceous across under 
side of neck; under parts, otherwise, dull ochraceous, the slate gray of under 
fur showing through; upper surface of feet and hands buff; soles dusky; 
1Lagomys collaris. FE. W. Nelson, Proc. Biol. Soc. of Washington, Vol. VIII, pp. 117-120, 
Dec. 21, 1893. 
2 Cuppes —fond of delicacies. 
