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NORTH AMERICAN FAUNA. 



fKo. 11. 



wliitej rest of UDcler parts ocliraceous or orange yellow, including the 

 fore feet, and reaching narrowly down the under side of hind leg to 

 ankle, whence it may or may not extend in a narrow line along inner 

 side of foot to toes 5 under side of tail more or less suftused with golden 

 chestnut; anal region chestnut brown; in worn pelage the colors are 

 everywhere much paler. 



Cranial characters. — Skull similar to that of P. arizonensis hut with 

 postorbital processes broader at base atid less peg like. 



ReynarJcs. — This handsome weasel replaces longicauda on the Cascade 

 and Siskiyou mountains of Oregon and Washington, reaching a short 

 distance into British Columbia. The only specimens examined have 

 come from Siskiyou, Oregon, and Chilliwack, British Columbia (the 

 latter, No. 3553, collection of E. A. and O. Bangs). 



Measurements. — Average of 2 males from Siskiyou Mountains, Ore- 

 gon; Total length, 423; tail vertebrae, 164; hind foot, 48. 



PUTORIUS ARIZONENSIS Mearns. Mountain Weasel. 



Putotius arizonensis Mearns: Bull. American Museum Nat, Hist.; Vol. Ill, No. 2, pp. 

 234-235, May, 1891. 



Futorius longicauda Merriam : Mammals of Idaho, N. Am. Fauna, No. 5, pp. 83-84, Aug. 

 1891 (from mountains of Maho). 



Type locality. — San Francisco forest, Arizona (a few miles south of 

 Flagstaff). 



Geographic distrihution. — Broadly, the Sierra Nevada and Eocky 



Mountain systems, reaching British 

 Columbia in the Rocky Mountain re- 

 gion, but not known north of the Sis- 

 kiyou Mountains in the Sierra- Cascade 

 system. 



General characters. — Similar to Puto- 

 rius longicauda in color and markings, 



Fig. 12.-P. arizonensis d ad. Boulder ^y^j^ mUCh Smaller in sizC. 



County, Colo. Color. — Upper parts from occiput to 



black tip of tail, raw umber brown; head decidedly darker; end of tail 

 black; chin and upi^er lip all round white; rest of under parts includ- 

 ing upper surfaces of fore feet and inner half of hind feet and upper 

 surfaces of hind toes ochraceous or ochraceous yellow, varying in tint. 



Cranial characters. — Skull similar to that of longicauda but decidedly 

 smaller and less triangular; narrower across mastoids and more bulg- 

 ing in parietals. 



• Remarlcs. — Futorius arizonensis is a mountain form of longicauda^ 

 which it closely resembles except in size. The type specimen, collected 

 by Dr. Mearns on the pine plateau of Arizona a few miles south of 

 Flagstaff, is an immature female and is of unusually small size. A 

 male obtained by him near the same i^lace is of the normal size, as is 

 another male in the Department collection from Springerville, Ariz., 



