By this enumeration of the gazelles, or antelopes, we find there are twelve species, or distinct varieties: viz. 1. The common gazelle; 2. The kevel; 3. The corine; 4. The tzeiran; 5. The koba, or great brown cow; 6. The kob, or small brown cow; 7. The algazel, or antelope of Egypt; 8. The pasan, or pretended bezoar; 9. The nanguer, or dama of the ancients; 10. The antelope; 11. The lidmée; and, 12. The Indian antelope. After having carefully compared them, we are induced to conclude that the common gazelle, kevel, and corine, are only three varieties of one species: 2. That the tzeiran, koba, and kob, are varieties of another: 3. That the algazel and the pasan are probably only two varieties of the same species; and that the name _bezoar-gazelle_, which has been given to the pasan, is no distinctive character; for we think ourselves able to prove, that the Oriental bezoar does not come from the pasan alone, but from all the gazelles and goats which live in the mountains of Asia: 4. That the nanguers, whose horns are bent forwards, and of which there are two or three varieties, have been indicated by the ancients under the name of the _dama_: 5. That the antelopes, which are three or four in number, and differ from all others by the double flexion of their horns, were also known to the ancients by the names of _strepsiceros_, and _addax_. All these animals are to be found in Asia and Africa that is in the old continent, and to these five principal species, which contain twelve very distinct varieties, we shall not add two or three other kinds, of America, to which the indefinite name of _gazelle_ has also been given, although they are different from all those we have already noticed; as it would only increase the confusion, which is already too great. We shall give the history of these American animals, under their real names of Mezame, Temamaçame, &c. and shall here speak only of those animals of this species which are found in Africa and Asia: we shall also refer to the following articles, several other animals of Africa and Asia, which have been considered as antelopes or goats, though they appear to be an intermediate species; such as the bubalus, or Barbary cow, the condoma, the guib, the grimm, &c. without including the chevrotains, which greatly resemble the small goats or antelopes, but of which we shall speak in a separate article. It is now easy to perceive how difficult it was to arrange all these animals, which amount to thirty, ten goats, twelve or thirteen antelopes, three or four of the bubalus, and as many chevrotains, all different from each other; many of them were unknown, the others confusedly mentioned by naturalists, and confounded one for another by travellers. This is the third time that I have written their history, and I must say, that the trouble much exceeded the produce, though I have done as much as possible with the materials and knowledge I was able to acquire.