The famous traveller and naturalist, Dr. Eduard Rüppell, of Frankfort-on-the-Main, whose name we have already frequently mentioned in this work, was the discoverer of this fine Antelope, which he met with in 1832 on the coast of the Red Sea west of Massowa, and subsequently described and figured in his ‘Neue Wirbelthiere.’ Rüppell called this animal “_Beisa_” after the native name by which it was known to the Arabs of the district, and at the same time attempted to identify it with an Antelope which he had heard of but not obtained seven years previously in Dongola, there known as the “_Dammah_.” But, as Heuglin has pointed out, it seems by no means certain that the “_Beisa_” of the coastland of Abyssinia is the same as the “_Dammah_” of Dongola. Although, therefore, the name “_dammah_” as will be seen by our list of synonyms, was published by Cretzschmar and Fischer before Rüppell’s “_beisa_” it would be neither just nor reasonable upon this uncertain plea to deprive Rüppell, who certainly supplied the first recognizable description of it, of the name of this species. Rüppell informs us that the Beisa in his time (about 1832) was not uncommon in the low-country at the back of Massowa, and extended northwards along the coast to Suakin. It was usually found in small families in the flat valleys which are slightly grassed, and was said to be fleet and shy, being much persecuted by the Turkish soldiers then in garrison at Massowa. Mr. W. T. Blanford, F.R.S., met with this Antelope in the same district during the Abyssinian Expedition of 1867–68, and, in his volume on the ‘Geology and Zoology of Abyssinia,’ writes as follows:— “On returning from the interior I stopped for three days at a halting-place in the semi-desert north of Massowa, and succeeded in shooting four of these superb and rare Antelopes. All were females; but there is little, if any, difference in the sexes, both having equally fine horns. “The Beisa is found singly or in small herds, rarely exceeding ten in number, in the somewhat hilly barren country near the sea- coast. They are said to keep to the more hilly parts of Samhar. Near Annesley Bay, where the country is more wooded, this Antelope does not occur, but it abounds farther south in the Somali country, and the horns are brought in considerable numbers to Aden and Berbera. They are used as weapons by the Somalis.