292 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Se». 



Mustela muricus (Bangs) 



Sierra Least Weasel 



Original description — Piitorius (Arctogale) muricus Bangs, 

 Proc. New Eng. Zool. Club, 1, July 31, 1899, p. 71. 

 Type locality — Echo, Eldorado County, California. 

 Synonym — Putorius muricus. 

 Ra)igc — Known only from the type locality, as above. 



Mustela arizonensis (Mearns) 

 Mountain Weasel 



Original description — Putorius arizonensis Mearns, Bull. 

 Amer. Mus. Nat. Hist., 3, May, 1891, pp. 234, 235. 



Type locality — San Francisco forest, near Flagstaff, 

 Coconino County, Arizona. 



Synonyms — Arizona Weasel; Putorius brasiliensis frenatus. 



Range — Transition and Boreal zones along the Sierra 

 Nevada, from Mount Shasta (Merriam, N. Amer. Fauna, 16, 

 1899, p. 106) south to Tulare County, and the San Jacinto 

 Mountains, Riverside County (^lus. Vert. Z^ool.). 



Mustela xanthogenys xanthogenys Gray 



California Weasel 



Original description — Mustela xanthogenys Gray, Ann. 

 and INIag. Nat. Hist., 11, 1843, p. 118. 



Type locality — Southern California, probably near San 

 Diego (fide Merriam, N. Amer. Fauna, 11, 1896, p. 25). 



Synonyms — Yellow-cheeked Weasel; Putorius xanthogenys. 



Range — Lower and Upper Sonoran zones west of the desert 

 divides, from the Mexican line north through the San Diegan 

 district, and west-central California east of the northern 

 humid coast belt, at least to the head of the Sacramento 

 Valley. 



Mustela xanthogenys munda (Bangs) 



Redwood Weasel 



Original description — Putorius xanthogoivs viundus Bangs, 

 Proc. New Eng. Zool. Club, 1, June 9, 1899, pp. 56, 57. 



