350 
THE MAMMALS OF EGYPT. 
Gazella tilonura, Heugl. 
Antilope melanura, Heuglin, Ant. u. BiifF. N.O.-Afr. (N. Act. Leop. xxx. pt. 2) 1863, p. 6 (nec 
Beclistein, 1799). 
Gazella melanura, Fitz. SB. Ak. Wien, lix. pt. i. 1869, p. 159. 
Antilope tilonura, Heugl. Reise Weiss. Nil, 1869, p. 315; id. Reise N.O.-Afr. ii. 1877, p. 101. 
Gazella tilonura, Ward, Horn Meas. (1) 1892, p. 126, (2) 1896, p. 170; Lydekker, Horns and 
Hoofs, 1893, p. 233; Sd. & Thom. Book of Antelopes, iii. 1898, p. 159, pi. Ixvi.; Bryden, in 
Great and Small Game of Afr. 1899, p. 351, pi. ix. fig. 9. 
Gazella loevipes, Brooke, Rroc. Zool. Soc. 1873, p. 541 (nec Sund.). 
Height at withers about 27 inches. General colour deep sandy. Central facial 
band but little more rufous than the back; no black patch on muzzle. Light 
facial streak absent or scarcely perceptible on sides of muzzle; the area round the eye 
dull whitish, not sharply defined. Back of ears scarcely lighter than nape. Light 
lateral band present, not strongly defined. Dark lateral band black, strongly marked, 
though narrower than in G. thomsoni from British East Africa; a sandy line present 
between it and the white of the belly. No dark pygal band. Tail sandy at base, the 
remainder black. Knee-brushes present, dark sandy. 
Horns little or no longer than the head, lyrate, parallel at base, curving outwards 
above, and then abruptly twisted inwards towards each other at the tip, the ends each 
forming a sharp hook, similar to that found in 0. soeTYinieTringi, but even more 
strongly bent inwards. 
Dr. S. Lyle Cummins has kindly placed at my disposal a book of water-colour 
sketches, with field-notes on animals and birds of the Kassala district. In the notes 
relating to the Gazelles, G. isdhelld is called G. doTcas, but there is no doubt that 
this latter name is applicable only to the Gazelle of Egypt proper. In the following 
quotation this error is corrected. 
Dr. Cummins, in comparing G. isahelld with this species, says. G. iscihello. 
has a much more pointed snout, the lips projecting well in front of the nostrils, 
whereas in G. tilonura the muzzle is very blunt; the horns of the former lend hack 
hefore turning in, but in the latter they are hardly at all bent back, but hooked 
sharply inwards and backwards. [The sketch which accompanies the MS. shows a 
young male; the horns are not sufficiently developed to show the true backward sweep 
of the adult condition,] G. isahella has the typical gazelline markings on ffanks, 
without dark band ; in G. tilonura this band is black. In G. isahella there is a black 
line behind the fetlock-joint both on fore and hind legs, and a little tuft of black hair 
just above the hoof in front; these are absent in G, tilonura. 
