It should be stated that the description given by Pliny of his “Strepsiceros, quem Addacem Africa appellat” is very short and incomplete, and has been variously interpreted by subsequent writers. But as it was an African animal with twisted horns, and the native Arab name of the present species, according to Hemprich and Ehrenberg, is “Abu Akass” (the father of the twist), it seems highly probable that we have in it the veritable “Addax” of the ancients.
The first naturalist of modern days to obtain specimens of the Addax in its native wilds was Rüppell, who met with it in the deserts of Dongola south of Ambukol, where, he tells us, it lives in small families apart from all other species of Antelopes, and is hunted by the Arabs on horseback in summer time. Rüppell forwarded examples of both sexes of the Addax to Frankfort, where it was described and figured by Cretzschmar in 1826 from Rüppell’s specimens. Cretzschmar identified it as being without doubt the “Addax” of Pliny, and named it Antilope addax, being apparently unaware that it had been previously described by De Blainville from specimens which he had examined in London in the Pantherion of Bullock and in the Museum of the Royal College of Surgeons.
About the same period Hemprich and Ehrenberg had obtained examples of the same Antelope for the Berlin Museum, apparently from nearly the same district. These were first described and figured by Lichtenstein in his ‘Darstellung der Säugethiere,’ and subsequently by Hemprich and Ehrenberg themselves in their ‘Symbolæ Physicæ.’ They tell us that they were obtained about twenty hours’ distant from Ambukol, in the Chor-el-Lebben, where these animals are hunted by the Kubabish Arabs on horseback, in the month of June. Three specimens were sent home, which we suppose are the same that are figured in their plate, and represent, according to their descriptions, an adult female and two young females with straight horns.
Our third great authority on the Mammals of North-east Africa, Th. v. Heuglin, informs us that the Addax extends northwards into the Libyan Desert of Egypt, to the Fayoum and the Oases, and is not rare in the Bayuda Desert. Though he writes as having met with this species himself, he does not give us the exact locality in which he came across it.
Passing westwards, we have no doubt of the occurrence of the Addax in suitable localities all through the Great Sahara, although we have little certain information on the subject, except that a pair of horns, brought back by Denham and Clapperton from their adventurous journey across Central Africa in 1822–24, is in the British Museum.
But the Addax is still to be found in Southern Tunis, whence living examples were formerly brought to England by Louis Fraser and other collectors. In his article on the larger Mammals of Tunisia, published in the Zoological Society’s ‘Proceedings’ for 1898, Sir Harry Johnston tells us that this fine Antelope “is still a Tunisian animal, although now rarely heard of north of the limits of the real sandy desert.”
The same kind friend and correspondent, writing to Sclater from Tunis in January 1898, says:—
“I have just come back from an interesting journey through the Tunisian Sahara, and back by Tebessa, as you suggested. I penetrated south to 32° nearly. I found that the Addax (though I did not see one) was still fairly abundant in the desert, and I bought several very fine pairs of horns from the Arabs. But the finest pair that I saw was at Meduin (Military headquarters, Tunisian Sahara) in the house of the Commandant. He allowed me to measure and draw it (see the sketch, fig. 95). You will notice that this example has a third twist; the majority of male Addaxes only attain to two or two and a half, though I have a pair in my collection here which verges on the third turn.
“The cow Addax (see the drawing, fig. 96) has much slenderer and much less spiral horns, which have departed far less markedly from the Orygine type.”
