The next great explorer of North-eastern Africa, Rüppell, does not add much to our knowledge of the present species, which, in his list of Antelopes in the ‘Neue Wirbelthiere,’ he tells us, lives in herds in the deserts of Nubia and also in Egypt proper, as far north as the borders of the Fayoum. He comments, however, upon its confusion by Lichtenstein with the A. leucoryx of Pallas, and calls it Antilope algazella, after Buffon.
Our third leading authority on North-African mammals, Theodor von Heuglin, informs us that the Leucoryx was only met with by him in Southern Nubia and Kordofan, and in the oasis of El-Kāb, west of Dongola. But, according to the Central-African traveller Nachtigal, the range of this species extends into Borgu and Tibeste, while Barth in 1850 met with it in the hills of Air or Asben, north of Agades, in about 19° N. lat. and 9° E. long.
Proceeding still further westward, we may state that there can be little doubt that the Leucoryx was formerly met with in the southern part of Tunisia, although at the present epoch it seems to be nearly, if not quite, extinct in the Beylik. When Sclater was in Tunis in 1898 he observed a stuffed specimen of a young Leucoryx Antelope in the palace of the Bey at Marsa, and was told that it had been originally received alive from the southern frontiers of Tunisia (see P.Z.S. 1898, p. 280).
In the Musée Alaoui, at the Bardo Palace, Tunis, Sclater was also shown an unmistakable figure of a Leucoryx attacked by a Lion, represented on a piece of Roman mosaic pavement. Of this figure Sir Harry Johnston has kindly furnished us with the accompanying sketch (fig. 92, p. 48).
The mosaic pavement in question, which was discovered among the remains of a Roman villa in the vicinity of Tunis, contains representations of various animals of the chase found in that district in Roman times. The Gætulus Oryx of Juvenal (Sat. xi. 140) was therefore in all probability the Leucoryx.
We are not aware of any authentic records of the occurrence of the Leucoryx on the southern frontiers of Algeria and Morocco, where, in recent times, it has probably been driven far into the interior. But when we go on as far west as Senegal and Nigeria it would appear that the Leucoryx, or a form so closely allied to it as to be barely distinguishable, is still abundant in the Senegambian deserts, and is also, according to Capt. Mockler-Ferryman, met with on the Nile in the vicinity of Lokoja.
Fig. 92.
A Leucoryx attacked by a Lion.
The first specimen of the Leucoryx received from Senegal was, so far as we know, that figured by Geoffroy St.-Hilaire and F. Cuvier in 1819 in the ‘Histoire Naturelle des Mammifères’ (plate 376), which was then living in the Jardin des Plantes. This, we are told, was an adult male, standing about four feet high to the top of its head, and having long and well-developed horns.