Our figure (Plate LII.), which has been put on the stone by Mr. Smit from a sketch prepared for Sir Victor Brooke by Mr. Wolf, represents a male and two females of this species, probably the specimens in the British Museum. _January,_ 1898. [Illustration: THE BOOK OF ANTELOPES PL. LIII. _J Smit del, et lith._ _Hanhart imp._ Przewalski’s Gazelle. GAZELLA PRZEWALSKII. _Published by R H Porter_] 83. PRZEWALSKI’S GAZELLE. GAZELLA PRZEWALSKII, BÜCHN. [PLATE LIII.] _Antilope gutturosa_, =Przewalski=, Mongolia (Russian ed.), p. 18, pl. i. fig. 1 (♂) (1875); =id.= op. cit. Morgan’s Engl. Transl. i. pp. 20 & 28 (1876). _Antilope cuvieri_, =Przewalski=, Cat. Coll. (Russian) p. 110 (1888) (_nec_ Ogilb.). _Gazella przewalskii_, =Büchn.= Mélang. Biol. xiii. p. 164 (1890). VERNACULAR NAME:--_Dzéren_ of Mongols (_Przewalski_)--applied to all the Gazelles of Central Asia. Size rather greater than in _G. picticaudata_. General colour deep fawn in summer, pale finely grizzled fawn in winter. Sides of neck (at least in winter) and top of muzzle slaty brown; no ordinary gazelline face-markings. Ears short, acutely pointed[5]; coloured like the back. Rump with the white of the anal region running up on to the upper surface, divided in its centre by a narrow fawn-coloured line running from the back on to the tail. Tail very short, hidden in the fur; fawn along its top, inconspicuously pale brown at its tip. Front of limbs more or less brownish; no knee-tufts. Skull short and stoutly built. No anteorbital fossæ. Nasals broad and short; premaxillæ not reaching up to the latter, the nasal opening unusually large and broad. Basal length of an adult male 7 inches, greatest breadth 3·8, muzzle to orbit 4. Horns of median length and thickness, much compressed laterally; with the exception of their terminal two inches, they are evenly curved backwards and divergent outwards, the divergence increasing above; tips abruptly hooked inwards and slightly upwards, at a sharper angle with the rest of the horn than a right angle. _Female._ Similar to the male, but without horns. _Hab._ Mongolia; Koko Nor, northern part of Kan-su, and Ordos. Przewalski’s Gazelle, which has been most appropriately named after the famous explorer who discovered it, was first described and figured by Przewalski himself in 1876, but erroneously confounded with the allied form _G. gutturosa_. Twelve years later, it appears, Przewalski discovered his error, and proposed to rename the animal _Antilope cuvieri_. But this specific term properly belongs to another species which had been described by Ogilby many years previously. Under these circumstances Dr. Büchner in his account of the Mammals of the Kan-su Expedition of Messrs. Potanin and Beresowski, proposed that this Gazelle should in future be known as _Gazella przewalskii_--Przewalski’s Gazelle.