Descriptions of East Asiatic Mammals 97 
separable genera with united ears, namely Chcerephon and 
Nyctinomus, and possibly Mops, the last known in India and 
Celebes. 
Chcerephon and Nyctinomus are distinguished from one an- 
other mainly by characters of the palate — not very helpful to 
those who are not Bat specialists ! 
The Naked Bulldog Bat, Cheer omeles tor quoins (Fig. 16), 
is found in the Malay Peninsula and Indo-China; it has been 
taken at Singapore, Pahang, Selangor, and in Siam. The lips, 
unlike those of most of the other genera in the family, are 
smooth. There is a peculiar fleshy fold of skin around the neck 
and a median gland beneath it, and the hind part of the wing ad- 
joining the body has a loose pocket or membrane, by some 
thought to shelter the nursing young one, even though it is pres- 
ent in both sexes. The color is dark gray, the forearm length 3*4 
inches. This genus of Bats was first made known from Java. 
It occurs also on Sumatra and Borneo. 
The Malay Wrinkled-lipped Bat, Chcerophon johorensis, 
from Johore in the Malay Peninsula, is the original and typical 
Chcerophon. The band of skin uniting the ears is so deep that it 
forms a distinct pocket with the head and ears. The forearm is 
l%o inches in length, the color very dark brown. C. plicatus 
Fig. 17. Head of Wrin- 
kled-lipped Bat, Chaere- 
phon. 
Fig. 18. Tail of Sheath-tailed Bat, Emballo- 
nura, emerging onto the upper surface of the 
interfemoral membrane. 
