102 Mammals of Eastern Asia 
THE HOLLOW-FACED BATS (FAMILY NYCTERID^E) 
This small family, containing the single genus Nycteris, is 
perhaps descended from the same ancestry as the False Vam- 
pires, Megadermidse. The ears are rather large, with somewhat 
rounded outline. There is a distinct noseleaf ; the six-jointed tail 
is long, terminating at the edge of the inter femoral membrane 
Fig. 20. Head of Hol- 
low-faced or Slit-faced 
Bat, Nycteris javanica. 
Fig. 21. Head of 
Horseshoe Bat, 
Rhinolophus. 
Fig. 22. Head of 
Round-leaf Horse- 
shoe Bat, Hipposi- 
deros armiger. 
in a wide cartilaginous fork. The skull is noteworthy for the 
very large broad depression between and behind the positions 
of the eyes. The limb bones are exceedingly slender. Most of the 
species are African ; one lives in the Malay area. 
The Malayan Hollow-faced Bat, Nycteris javanica tragata, 
is colored pale buffy brown, the membranes and ears light slate, 
the underparts yellowish brown. The length of the forearm is 
2 inches, somewhat longer than the true Javan race. This Bat 
occurs in caves in the Malay Peninsula, Sumatra, and Borneo. 
THE HORSESHOE BATS (FAMILY RHINOLOPHID^) 
A large number of small to moderate-sized species go to make 
up this Old World family. About half of the species belong to 
