276 VERTEBRATE ANIMALS OF THE UNITED STATES 



Hudson Bay to the Alaska coast; southward into Minnesota and 

 Montana; the smallest carnivorous mammal. 



M. longicauda Bonap. Long-tailed weasel. Color yellowish brown 

 above and yellowish w^hite beneath; extreme tip of tail black; length 

 (male) 450 mm.; tail 165 mm.; hind foot 51 mm.: central plains from 

 Kansas northwards. 



Subspecies of M. longicauda 



M. I. longicauda Bonap. Great Plains from Kansas northwards. 



M. I. spadix (Bangs), Color dark: Minnesota at lower boundary of 

 the Boreal zone. 



M. arizonensis (Mearns). Similar to M. longicauda but much 

 smaller: Rocky Mountains south of British Columbia; Sierra Xevadas; 

 in the high mountains. 



M. alleni (Merriam). Simiar to M. arizonensis; upper parts golden 

 brown: Black Hills, South Dakota. 



M. xanthogenys Gray. Color umber brown, yellowish beneath; 

 length (male) 402 mm.; tail 156 mm.; hind foot 40 mm.: Pacific slope. 



Subspecies of M. xanthogenys 



M. X. xanthogenys Gray. Southern California. 



M. X. munda (Bangs). Smaller; colors darker: coast region of 

 northern California. 



M. X. oregonensis (Merr). Size large: eastern Oregon. 



M. saturata (Merr). Similar to M. longicauda, but larger and 

 darker: Oregon and Washington; a mountain form. 



M. washingtoni (Merr). Similar to M. noveboracensis, but with a 

 longer tail and a shorter black tip: Mount Adams region, Washington. 



M. streatori (Merr). Similar to M. cicognanii, but smaller and 

 darker, the white on the belly being reduced to a narrow, irregular 

 strip: coast region of Washington and Oregon and the high Rockies. 



Subspecies of M. streatori 



M. s. streatori (Merr). Costal region of Washington and Oregon- 

 M. s. lepta (Merr). Size still smaller; black tip of tail very much 



smaller: Colorado, in the high mountains. 



M. vison Scherber. Mink (Fig. 158). Color uniformly dark 



brown; tail darker and bushy; breast and chin usually spotted white; 



length 610 mm.; tail 178 mm.; hind foot 63 mm.: North America from 



the Gulf of Mexico and the Mexican boundary to the Arctic Circle; 



westward to the Rockies and into California, British Columbia and 



