jo Mammals of Eastern Asia 
length of the forearm. It will be seen that this measurement 
has been given very frequently in the pages that follow, when 
the different kinds of Bats are discussed. 
the fruit bats and flying foxes 
(suborder megachiroptera) 
All of the really big Flying Foxes with wing-span of 3 feet 
or more belong here, and also quite a number of little Bats. 
With the exception of one genus found in Fiji and the New 
Hebrides, all these Bats have the tail either absent or shortened 
to a brief appendage shorter than the hind foot. Only a rudi- 
mentary flying membrane is developed between the hind limbs. 
An infallible test for the Asiatic Megachiroptera rests upon the 
character of the cheek teeth. If the cheek teeth are irregular 
rounded stumpy objects, they belong to a Fruit Bat; if they are 
complicated, provided with several pointed cusps and sharp 
ridges, which often have a W-shaped pattern, they are the teeth 
of an Insect-eating Bat. The Suborder Megachiroptera, un- 
known in the New World and confined to the tropics of the 
Old World, contains but one family, the Pteropodidse. 
FAMILY PTEROPODID.E 
The Pteropodidse of eastern Asia are separated into two sub- 
families, the Pteropodinae or True Flying Foxes and Fruit Bats, 
and the Macroglossinae or Long-tongued Fruit Bats. 
SUBFAMILY PTEROPODIN^ 
The Bats of eastern Asia that belong to this subfamily are the 
Rousettes, the True Flying Foxes, and the Short- faced Fruit 
Bats, Cynopterus, the last with several closely related mono- 
typic genera — Megcerops, Chironax, Balionycteris, Sphcerias, 
