Rabbits and Hares 
V. Pocket mice (Family Heteromyitde). Slender mouse-like 
animals, many with hind legs much elongated, but with 
pouches on the sides of the face as in the gophers. 
(Exclusively Western.) 
Vi. Jumping mice (Family Zapodide). Mouse-like animals, 
with hind legs much elongated, progressing by long leaps; 
tail very long exceeding the head and body. 
VII. Rats and mice (Family Murid@). Hind legs little if any 
longer than the front pair, the latter never modified like 
those of moles, tail never longer than the head and body. 
To this family belong all the mouse and rat-like animals 
not included in IV, V and VI. 
VIII. Sewellels (Family Aplodontida). Thick-set animals with 
very short tail and short ears, and a peculiar fiat skull 
somewhat like that of the beaver. (Exclusively Western.) 
IX. Beavers (Family Castoride). Tail curiously modified into 
a broad, flat, naked appendage. 
X. Squirrels and marmots (Family Scturid@). Here belong all 
the squirrel-like animals including the spermophiles and 
chipmunks. They differ from the mice and _ their 
allies in their bushy tails and many peculiarities in their 
anatomical structure, an important one being that the two 
lower leg bones are separate and not fused together as 
in the mice, thus allowing them to use their limbs more 
freely in climbing, a habit which is characteristic of a 
majority of the species. (See cuts page 72.) 
RABBITS AND HARES 
(Family Leporid@) 
Rabbits are perhaps the most widely known of any of our 
wild animals. As our commonest ‘‘ game” they are familiar to 
every gunner and equally so to those who are acquainted with 
them only in the markets. Their distribution, too, is almost 
universal and in America, from the polar regions to the tropics, 
they exist in one form or another. Rabbits are also frequently 
known as hares, and the careless usage of the two names has 
given rise to much confusion in the popular mind as to just 
what constitutes the difference between them. 
As a matter of fact the European rabbit, the parent stock 
of all the varicus domestic breeds, is the only One properly en- 
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