123 
Case 4. — Contains a portion of the gnawing mammals 
( Rodentia ). Among these are the hares and rabbits, the capy- 
bara, chinchillas, and porcupines. The capybara {Hydro char us) 
inhabits a large portion of South America, and is the largest liv- 
ing rodent. It is the prey of the jaguar. The chinchilla {Lagi- 
dium) here shown is not the true chinchilla so prized for its soft 
fur. The porcupines are remarkable for their long sharp spines. 
They are not able to shoot these out at their enemies. 
Case 5.— Contains the remainder of the rodents— the rats, 
mice, muskrats, beavers, squirrels, and spermophiles. 
In Case 6 are displayed the Insectivora and the Chiroptera 
(bats). In the former order are found the strange tenrec {Centetes) 
of Madagascar, the Solenodon from Cuba, the hedge hog, the 
shrews, the moles, and the so-called flying lemur {Galeopithecus) 
from Sumatra. Among the bats are some large and remarkable 
species. The largest species belong to the family of fruit-bats, 
living on fruits and the juices of plants. The smaller bats subsist 
mostly on insects. The vampire bat is of small size and there is 
no specimen exhibited. 
From Hall 19 the visitor will pass into Hall 20. 
HALL 20. 
nAnnALS, 
The cases, twenty-one in all, are numbered across the hall in 
alternate directions, the first one being 
Case 1 . — Two representatives of the Sirenia. These are 
aquatic herbivorous animals which, in external form, resemble 
the whales. They have, however, no close relationship with the 
latter animals. The uppermost specimen is the American mana- 
tee, or sea-cow, a resident of Florida. The lower specimen is the 
dugong from Australia. 
Case 2. — Burchell’s zebra. This is a larger animal than the 
true zebra and has the stripes on the hinder part of the body 
somewhat differently arranged. 
Case 3. — Hogs, peccaries and the Malayan tapir. The pec- 
caries here shown go in small herds of 8 to 10 and are not as pug- 
