MAMMALS 285 



P. rixosiis Bangs. Least weasel. Similar to P. allegheniensis ; length 

 150 mm.; tail 31 mm.; hind foot 22 mm.: Boreal America from Hudson 

 Bay to the Alaska coast; southward into Minnesota and Montana; the 

 smallest carnivorous mammal. 



P. longicaudiis (Bonap.). Long-tailed weasel. Color yellowish 

 brown above and yellowish white beneath; extreme tip of tail black; 

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

 from Kansas northwards. 



Subspecies of P. longicaudus 



P. 1. longicaudus (Bonap.). Great Plains from Kansas northwards. 



P. I. spadix Bangs. Color dark: Minnesota at lower boundary of 

 the Boreal zone. 



P. arizonensis Mearns. Similar to P. longicaudus but much 

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

 in the high mountains. 



P. alleni Merriam. Similar to P. arizonensis; upper parts golden 

 brown: Black Hills, South Dakota. 



P. xanthogenys (Gray). Color umber brown, yellowish beneath; 

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



Subspecies of P. xanthogenys 



P. X. xanthogenys (Gray). Southern California. 



P. X. mimdus Bangs. Smaller; colors darker: northern California. 



P. X. oregonensis Merr. Size large: eastern Oregon. 



P. saturatus Merr. Similar to P. longicaudus, but larger and darker : 

 Oregon and Washington; a mountain form. 



P. washingtoni Merr. Similar to P. noveboracensis, but with a 

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



P. streatori Merr. Similar to P. 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 P. streatori 



P. s. streatori Merr. Costal region of Washington and Oregon. 



P. s. leptus Merr. Size still smaller; black tip of tail very much 

 smaller: Colorado, in the high mountains. 



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

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

 length 6,10 mm.; tail 178 mm.; hind foot 63 mm.: forests of North 

 America from the Maine coast to the Gulf of Mexico and the Mexican 



