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Riippell’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 Saiugethiere,’ and subsequently by Hemprich and Ehrenberg 
themselves in their ‘Symbole Physice.’ 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 :— 
“JT 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 
