_Gazella arabica_, =Temm.= Esq. Zool. Guin. p. 193 (1853); =Tristr.= P. Z. S. 1866, p. 86; =id.= Faun. & Flor. Pal. p. 26 (1884) (Palestine); =Fitz.= SB. Wien, lix. p. 159; =Blanf.= Zool. Abyss, p. 261, pl. i. fig. 3 (horns) (1870); =Brooke=, P. Z. S. 1873, p. 544, 1874, p. 141 (fig., head); =Scl.= List Vert. An. Z. S. (1) p. 140 (1883), (2) p. 981 (1896); =Jent.= Cat. Ost. Leyd. Mus. (Mus. Pays-Bas, ix.) p. 137 (1887); =W. Scl.= Cat. Mamm. Calc. Mus. ii. p. 458 (1891); =Jent.= Cat. Mamm. Leyd. Mus. (Mus. Pays-Bas, xi.) p. 168 (1892); =Ward=, Horn Meas. (1) p. 114 (1892), (2) p. 156 (1896); =Lyd.= Horns and Hoofs, p. 179 (1893); =Scl.= P. Z. S. 1897, p. 812 (Hodeidah). _Antilope cora_, =H. Sm.= Griff. An. K. iv. p. 216, v. p. 333 (1827); =Less.= Compl. Buff. x. p. 287 (1836). _Gazella cora_, =Gray=, List Mamm. B. M. p. 161 (1843). _Antilope dorcas_, var. δ, =Sund.= Pecora, K. Vet.-Ak. Handl. 1845, p. 268 (1847); =id.= Hornschuch’s Transl., Arch. Skand. Beitr. ii. p. 264; Reprint, p. 84 (1848). _Gazella vera_, =Gray=, Knowsl. Men. pl. iii. (1850) (_cf._ =Scl.= P. Z. S. 1896, p. 984). _Gazella bennetti_, =Yerb. & Thos.= P. Z. S. 1895, p. 555 (Aden). VERNACULAR NAMES:--_Ghasal_ of Arabs, like _G. dorcas_; _Ariel_ or _Aiel_ in Syria (_Ehrenberg_). Size medium; height at withers about 24 or 25 inches. General colour dark smoky fawn, much darker than in the allied species. Facial markings distinct; central facial band dark rufous-fawn, with a black spot on the nose. Ears of medium length, brownish-fawn behind. Dark lateral and pygal bands smoky brown; light lateral band very slightly lighter than the back. Limbs more rufous than body; knee-brushes brown or black. Skull with short broad nasals; anteorbital fossæ shallow in the only good skull available. Basal length 6·75 inches, greatest breadth 3·3, muzzle to orbit 3·7. Horns thick and rather short, almost straight and parallel to each other, a little curved backwards below, and forwards above. _Female._ Similar to the male, but horns short and straight. _Hab._ Western Arabia. Although the Arabian Gazelle was described and figured as long ago as 1827, and specimens of it are by no means rare in captivity, we have as yet received little information about its exact range and its mode of life. But the great peninsula of Arabia still remains, we must recollect, one of the largest tracts on the earth’s surface that has been least explored by scientific travellers. Hemprich and Ehrenberg, the discoverers of this Gazelle, met with it during their travels on the eastern coast of the Red Sea, and transmitted specimens of both sexes to the Berlin Museum. Here they were first described and figured by Lichtenstein in his ‘Darstellung der Säugethiere’--a work devoted to making known the riches of the Mammal-collection of the great Institution of which he was the Director.