Western Mink 
199 
Body long and slender; legs short; toes partly webbed; neck 
rather long; tail about one third total length, bushy; skull flattened 
above, outline rising very gradually from nasals to occiput, propor- 
tionally long; bullae flattened; postorbital constriction marked; 
anal glands moderate ; dentition: i. f; c. J ; pm. f; m. 1^ X 2 = 34, 
Semi-aquatic animals living along streams and about 
ponds and lakes, their food consisting of small mammals, 
birds, and fish. 
The genus is found in eastern Europe, in temperate 
North America, and possibly in eastern Asia. Elliot's 
Check-list gives three species and four subspecies as found 
in North America, one of which inhabits Colorado. 
Lutreola vison energumenos {vison, origin unknown: 
energumenoSf Grk., possessed of an evil spirit). 
Western Mink. 
Lutreola vison energumenos Bangs, Proc. Bost. Soc. Nat. Hist., 
p. 5 (1896). 
