FIELD BOOK OF MAMMALS 



Measurements. — Total length, males, ii inches, females, 

 9 inches; tail vertebrae, males, 3.2 inches, females, 2.8 inches; 

 hind foot, males, 1.45 inches, females, 1.22 inches. 



Geographical Distribution. — Practically all of North Amer- 

 ica. 



Food. — Small mamm_als and birds. 



Enemies. — Doubtless caught, on occasion, by Great Horned 

 Owls, and probably by other predatory mammals such as Fox, 

 Lynx, Alink, Fisher, etc., but so active as to escape most four- 

 footed enemies, except under very exceptional circumstances. 



Species and Subspecies of the Genus Mustela 



Subgenus Mustela 



All the following forms, except rixosa and its subspecies, 

 have black-tipped tails, in summer and winter. 



Bonaparte Weasel. — Mustela cicognavi cicognani Bonaparte. 

 As described above. Found in "Boreal forest-covered parts 

 of North America from New England and Labrador to 

 coast of southeastern Alaska (Juneau, Wrangel, and Loring), 

 and south in the Rocky Mountains to Colorado (Silverton). 

 It occurs in the interior of British Columbia (at Sicamous), 

 but in the Puget Sound region is replaced by a smaller and 

 darker form, P. streatori. In the United States it is common 

 in New England and New York, and in the forest-covered 

 parts of Minnesota. It probably occurs also in northern 

 Michigan and Wisconsin." (Merriam) 



Richardson Weasel. — Mustela cicognani richardsoni (Bona- 

 parte). 

 Like typical cicognani but larger and with longer tail. 

 Total length, males, 15.6 inches; tail vertebrae, 3.8 inches; 

 hind foot, 1.8 inches. Found in "Hudsonian timber belt 

 from Hudson Bay to interior of Alaska and British 

 Columbia." (Merriam) 



Newfoundland Weasel. — Mtistela cicognafii mortigena Bangs. 

 Similar to richardso?ii but less brown in summer, tail shorter, 

 and less white on hands and feet. Upperparts Front's 

 brown in summer. Total length, males, 13 inches, females, 

 II inches; tail vertebrae, males, 3.8 inches, females, 3.2 

 inches; hind foot, males, 1.9 inches, females, 1.4 inches. 

 Found in Newfoundland. 



Juneau Weasel.^ — Mustela cicognani alascensis (Merriam). 

 Resembling richardsoni but with more white on feet. Total 

 l2n;^th, males, 13.5 inches, females, 11 inches; tail vertebras, 

 males, 3.8 inches, females, 3.1 inches; hind foot, males, 1.9 

 inches, females, 1.4 inches. Found in the region about 

 Juneau, Alaska. 



