ZOOLOGICAL GARDENS. 
151 
Division No. 7—which contains a number of small birds 
e. g ., the Himalayan Black-bird, Metula bulbul; the 
White-eared crested Bujbul, Otocompsa leucotis ; the Black¬ 
headed Sibia, Sibia capistriata , and the Common Myna, 
Acridotheres tristis. 
Division No. 8—has the following birds : the Red 
billed Blue Magpie of the Himalaya, Urocissa occipi¬ 
talis; the common Koel, Eudynamys or lent alls ; the 
Bank Myna, Acridotheres gingianus; but besides the 
foregoing birds, this compartment contains an example 
of the common Flying Fox of India, Pteropus medius, 
one of the Chiroptera. 
The Bats belong to a distinct Order of the sucking ani¬ 
mals or Mammalia, as they differ from all of them in 
possessing wings. v The wing of the bat corresponds to 
the fore-limb of any ordinary quadruped, and to the arm 
of a monkey or man, but its structure is modified with 
special reference to the function it has to perform of carry¬ 
ing the animal through the air. The bird’s wing is the 
same organ, also altered so as to adapt it for the per¬ 
formance of a similar function, but the difference between 
the wing of a bird and the wing of a bat is very great, 
although in both the principle is the same, via., a firm 
resisting structure to which the effective portion of the 
wing is attached. In the bird the latter consists of 
long feathers arranged along the side of the fore-arm 
and hand, while in the bat the fingers of the hand 
form a fan-like expansion for the flying membrane. In 
the bird, only one finger of the hand, namely, the se¬ 
cond, is strongly developed ; the others, of which rudi¬ 
ments remain, being the thumb or first finger, and the 
third. In the bat, all the fingers are largely developed, 
