About the same time as the Zoological Society’s specimens arrived in England it would appear that living examples of the same Antelope reached the Jardin des Plantes at Paris. One of these, an immature female, was figured by Geoffrey St.-Hilaire and F. Cuvier on the 375th plate of their ‘Histoire Naturelle des Mammifères.’ In the letterpress accompanying this plate we are informed that two young living examples (male and female) had been received there, and that the female had lived in good health for two years without changing her colour, only varying in the size of her body and in the shape of her horns. The authors inform us that when the “Nanguers” arrived at Paris they had only very short horns, about 4 or 5 inches in length, which were at that period strongly and uniformly curved towards the front. The male having died when young did not change the character of his horns, but those of the female having had time to develop became recurved behind and divergent one from the other. These Gazelles had neither tear-bags nor knee-brushes. When the figure was drawn the female stood about 2 feet 10 inches in height, but seemed to be not fully grown. The authors of the ‘Histoire Naturelle des Mammifères’ refer these specimens to the “Nanguer” of Buffon, and do not say from what country they were received, but from their figure and description there can be no doubt that they belonged to the _Gazella mhorr_ of Morocco and not to the true _G. dama_ of Senegal, if these two species are held to be distinct. The only example of _Gazella mhorr_ in the British Museum is the mounted adult male from Morocco presented to the Zoological Society by Mr. Willshire in 1833, and formerly in that Society’s collection. It is no doubt the specimen from which Bennett’s figure in the ‘Transactions’ was taken, and is also, we believe, the original of our illustration (Plate LXXII.), which was put upon the stone by Mr. Smit under the direction of the late Sir Victor Brooke. Further information concerning this and other animals of Southern Morocco is much required, but until the present political conditions of that country are altered we are hardly likely to obtain it. _September,_ 1898. GENUS VII. AMMODORCAS. Type. _Ammodorcas_, =Thos.= P. Z. S. 1891, p. 207 A. CLARKEI. Size medium, about as in middle-sized Gazelles. Neck slender and rather elongated, but not so much as that of _Lithocranius_. Tail long, reaching nearly to the hocks. No Gazelline body-markings present, but the head with typically Gazelline streaks and bands. False hoofs small. Skull long and low, approaching in shape that of _Lithocranius_, but less modified. Shallow anteorbital fossæ present. Premaxillæ reaching nasals. Premolars 3/3, the anterior in each jaw unusually small.