MAMMALS—LUTRINAE. 183 
This animal is known throughout the United States as wolverine, sometimes as carcajou. In 
Europe it bears the name of glutton, and in both countries almost fabulous accounts are preva- 
lent of its ferocity and cunning. In the American fur countries they are very annoying to 
trappers from their propensity to follow their lines of marten traps, and devour either the bait 
or the animals captured. They also do much mischief by tearing up the cachés of provisions 
or peltry, and either destroying or devouring the contents. 
List of specimens. 
Loéality. Whence obtained. Nature of specimen. 
number. 
45 Northwest of Fort Union, Nebraska..-...-- A. Culbertson and E. T. Denig --...-.-.- Driediskin 2-5... 
Sus-Famiry LUTRINAE. 
Mustelidae with the posterior upper tubercular molar large, quadrate. Number of molars the same in each jaw. Feet short, 
palmated. 
The typical otters bear a strong resemblance to the minks, the last mentioned group of the 
weasels, although the skull and teeth approximate much more closely to the Melinae. The 
body is elongated, the feet short, the toes palmated. The species are generally of large size, 
and all more or less aquatic. 
The group of the otters embraces three principal genera—Lutra, Pterwra, and Enhydris. 
The former again has been subdivided into those with claws, well developed, and those with 
very rudimentary ones, or none at all. Péerura is a South American genus, having the tail 
dilated laterally on either side. Of Lutra, North America probably possesses two species; of 
Enhydris, one. 
