128 
THE MAMMiLS OF EGYPT. 
couch being not deeply cut. Tragus foliate, half the length of the ear, with a 
markedly concave anterior border, a rounded tip, and the middle of its posterior border 
convex, but somewhat concave below this and the lobule at the base. 
Posterior margin of the interfemoral membrane with a number of irregularly 
distributed papillary eminences. 
The wing-membrane arises from the base of the toes, and from the middle of the 
humerus to the knee it is more or less covered with fur above and below; the inter- 
femoral membrane is well clad above as far as a point on a line between the heels, 
the rest naked. Eight caudal vertebrae only, the tip of the tail free. 
The semi-naked muzzle, the lower lip, the ears inside and outside, the upper 
surfaces of the limbs and digits blackish brown. Fur on the upper surface of the body 
dark brown at the base with pale brown tips; the fur on the under surface of the 
body from the throat to the tail, and on the under surface of the wing-membrane, 
pure white ; wing-membrane pale brown. 
The inner upper incisor strongly bifid at its apex and grooved nearly to its base, 
the cusps placed somewhat antero-posteriorly, the anterior the longer; second incisor 
small, less than half the length of the posterior cusp of the first incisor, against the 
side of which it is closely opposed. First upper premolar minute, conical, close 
behind the canine, somewhat towards the inner side of the tooth-row, sometimes 
visible from without in the interspace which separates the second upper premolar 
from the canine ; second upper premolar considerably longer than the molars. Lower 
incisors not deeply trifid, First lower premolar half the size of the second. 
Measurements. 
Snout to vent. 
Vent to tip of tail. 
Length of head. 
Height of ear from margin of meatus internally 
Length of tragus. 
Breadth of tragus. 
Eye to snout. 
Length of forearm. 
„ 1st digit of manus, including metacarpal and claw 
,, 2nd metacarpal. 
„ 3rd „ . 
„ 4th „ . 
,, 5th ,, . 
„ tibia. 
„ foot. 
Stretch of wing .. 
Luxor. 
d. 
mm. 
46 
36 
15 
11 
5 
1-8 
6 
31 
7 
30 
31 
30 
30 
12 
8 
212 
