56 
MAMMALIA. 
communicating with a large membranaceous sac, formed by the 
skin of the body. 
Nycteris Daubentonii. — Daubenton’s Nycteris. 
Plate VII. fig. 9. 
Fur reddish-brown on the back, yellowish-white on the abdo¬ 
men, throat, breast, and head, except the crown; ears very 
large; tragus simple, very small. Length of body about an 
inch and a half; expanse of the wings from eight to nine inches. 
Genus 17. — Rhinopom a. — Geoffroy. 
Generic Character. —Incisory teeth |, canines J—J, cheek teeth 
izi > 28. The upper incisors separated from each other ; 
the nose long, truncated, and surmounted by a small leaf; nasal 
openings contracted, transverse, and operculated; ears large, 
united, and hanging over the face; forehead large, concave, in- 
terfemoral membrane narrow, and cut square; tail long, extend¬ 
ing beyond the membrane. 
Rhinopoma microphylla. — Small-Leaved Rhinopome. 
Fur ash-coloured; tail very long and thin; nostrils can be 
closed or opened, at the will of the animal, as in the seal genus. 
Two inches long; expanse of wings seven inches. Inhabits 
Egypt.—Brunnich, 1. c. vi. p. 50, f. 1, 2, 3, and 4. 
Genus 18—Taphozous. — Geoffroy. 
Generic Character. —Incisory teeth a ; canines }; molars 
5 Z 5 ’ 26. Nose with a furrow, as in the two preceding ge¬ 
nera ; but destitute of an appendage ; ears moderate, separated 
from each other; interfemoral membrane large, tail shorter than 
the membrane, and exserted on its upper side. 
Taphozous perforatus. — The Perforated Taphozous. 
Fur red; gray above, ash-coloured beneath, the lower part of 
each hair white; inner ears in the form of a hatchet, and termi- 
