108 
THE MAMMALS OF EGYPT. 
Nycteris revoilii, B-obin, Bull. Soc. Philom. (7) v. 1881, p. 90; id. Ann. Sc. Nat, (6) xiii. art. ii. 
1882. 
3 (J and 2 ? . Karnak. 
1 . Khayzara, Luxor. 
$ . Zoological Gardens, Gizeh. Mr. A. L. Butler, Aug. 1901. 
? . Near Cairo. Hon. N. C. Botbschild, Oct. 1902. 
Eye very minute. Ears very much longer than the head, the extreme height 
considerably more than one-half the length of the body from snout to vent, their extreme 
breadth equal to two-thirds of their length; oval in form, with the apex slightly indi¬ 
cated; fold on inner surface of conch along external border well-developed. Tragus 
expanded and broad in its free portion, broadest at the middle of its inner margin; its 
posterior border is markedly convex and sweeps round to the anterior border, which is 
only concave at its base ; a prominent, anteriorly folded lobe on the posterior border of 
the tragus below its free portion. Inner border of the ear fringed with fine ciliary white 
hairs directed outwards, backwards, and upwards, longest at its base, and becoming 
very short towards the tip ; the rest of the surface of the ears nude, with the exception 
of a few straggling sensory hairs. The fur is very soft, pale at the base, tipped with 
smoky fawn, the darker tips being very feebly defined on the face, around the ears and 
the back of the head, and the whole of the under parts, the almost colourless basal 
portion of the exceedingly soft fur showing largely on the surface. Muzzle yellowish 
fiesh-colour. Wing-membranes pale brownish, and the ears still paler, the under 
surface of the limbs being more or less tinged with yellowish. The four upper 
incisors are bicuspidate. The second lower premolar is very small, and may some¬ 
times be, according to Dobson, quite internal to the tooth-row. In the skull of one 
male this tooth is partially in the line of the inner half of the tooth-row, whilst its 
inner half is internal to the tooth-row; and in a female, likewise from Karnak, this tooth 
is in the line of the other teeth, so that no importance is to be attached to this variable 
character. 
This bat frequents the ruins of Karnak and also those of Thebes, and I have caught 
it on the wing in the portico of a house not many miles from the former locality. 
Nothing is known of its habits, but it is in full activity in February. 
Native name unknown. 
This species is not confined to the African continent, as it is extremely common in 
the Hadramut, Southern Arabia, and is found at Aden and in the Sinaitic Peninsula. 
In Egypt proper it has hitherto only been recorded from Thebes and its neighbourhood. 
To the south it occurs at Dongola, Sennaar, and possibly Kordofan. To the east of 
the Upper Nile Valley it (or a slightly modified form) has been obtained at Mt. Wagga, 
near Berbera in Somaliland, at an elevation of 6000 feet above the sea, and as far 
south as Zanzibar. 
