488 THE DORMOUSE. 
ground upon its feet it is guarded by a thick covering of stiff, bristly hairs, which defend the soles 
of the feet from injury, and, moreover, are useful in giving a firm hold upon the ground when 
the animal is in the act of making one of its extraordinary bounds. It is a lively and playful 
animal, delighting to bask itself in the sun near the entrance of its burrows, and to divert 
itself by occasional gambols with its compan- 
ions. Although it makes these visits to the 
open air for the sake of enjoying the warm 
beams of the sun, the Gerboa is a nocturnal 
animal, and feeds only by night. 
By the united powers of its teeth and 
claws it can drive its tunnel through impedi- 
ments which would baffle any ordinary animal ; 
for it can not only cut its way through the 
hardest sand, but is even able to gnaw a pas- 
sage through the thin layer of stone which 
lies beneath the sand. The food of these ani- 
mals consists chiefly of roots and similar sub- 
stances, which it digs outof the earth, but it 
also feeds on various kinds of grain. 
The generic term ‘‘ Dipus,’’ or two-footed, 
has been given to the true Gerboas because they 
press their fore-feet so closely to their breasts 
while they leap that they appear to be entirely 
destitute of those limbs, and only to possess the 
two long hind legs. All theanimals that belong 
to this genus have five toes on their fore-feet and 
only three on the hinder feet. The hair of the 
tailis arranged ina double row, after the man- 
ner which is scientifically called ‘‘ distichous.”’ 
GERBOA.—Dipus egyptius. 
THERE are many species of Jerboide in- 
habiting different countries, ali of which are very similar in shape and habits. Among these may 
be noticed the ALAoTAGA, or Jumping Rabbit of Siberia, and the GrRBInLEs of Africa and India. 
Tuer family Zapodide embraces those little forms called Jumping Mice. It is represented 
by a single species, the Jumping Mouse; Deer Mouse (Zapus hudsonicus). This odd little 
creature was first brought to notice by Pennant during his extended Northern tour. According 
to De Kay it is ‘‘numerous in all parts of New York State.’? The Indians call it Wah-peh-sous, 
or the animal that jumps like a deer. It is said to leap ten or twelve feet at a bound. It pro- 
duces four young at a birth, and three litters in a year. The little creatures are sometimes 
turned out of their homes during the haying time, and a common sight is that of the mother 
with four little ones hanging to her teats. 
Next in order to the Gerboas is placed the small group of animals which are sufficiently 
familiar by the name of Dormice. This term signifies ‘‘ Sleepy Mouse,’’ and is most appro- 
priate to the lethargic little creatures, which spend the greater part of their time in somnolency. 
One of these animais, the LorrE, or Far Dormouss, is celebrated in classical literature as 
being in great request among the luxurious Romans as an article of diet. For this purpose the 
Loire was carefully fattened, being placed in certain receptacles, which were called Gliraria, 
from the Latin word gis, which signifies a dormouse. The Loire is found in almost all the 
warmer portions of Europe, but is seldom seen at any great elevation above the level of the sea. 
THE Lerot, or GARDEN Dormous®, inhabits the same localities as the Loire, but its 
flesh is not eatable like that of the Fat Dormouse, although it resembles it very nearly in 
every point but size. 
