Out upon the plain, and directly in front of them, was a herd of noble antelopes. They were neither gnoos, nor springboks, nor hartebeests, nor any of the common kinds that the party had already met with, and had hunted to their satisfaction. Indeed, they were of a species that none of the six had ever seen before, and they only knew them to be antelopes from the make of their bodies, the shape of their horns, and other points characteristic of these animals.
They were antelopes of large size, standing nearly four feet high, having sabre-shaped horns curving gently backward and ringed to within six inches of their tips. Their general colour was ashy grey, tinged with raven-blue—the blue tint being caused by the deep black colour of the skin shining through the hair.
Although none of the party had ever seen such antelopes before, Hans, and also the hunters Hendrik and Groot Willem, guessed what kind they were. They were of a kind that once ranged the Graaf Reinet, and even as far south as the Cape itself, though there they were never common. That was long before any of the young yägers had ever fired a gun or mounted a horse, but as these remembered having heard their fathers talking of this animal—of its blue colour, of its long curving horns, of its fine outline of form, as well as bold fierce character—they recognised those before them by the descriptions they had heard. They could be no other than blue-bucks, or blauw-boks in the language of the boors.
Hans, after eyeing them a moment, gave this as his opinion. The species was the blauw-bok, the Aigocerus leucophea of modern systematists.
Now of the group of antelopes to which the general name Aigocerus has been given there are five species—all large noble animals, and all inhabitants of South Africa, and particularly the countries adjacent to the Great Orange River.
First, there is the “waterbuck,” (Aigocerus ellipsiprymnus), which stands nearly four feet in height, is of bluish grey colour, frequents the banks of rivers, takes the water freely—whence its trivial name—swims well, is bold, fierce, strong, and dangerous, when bayed or wounded.
Secondly, there is the “takhaitze,” (Aigocerus barbatus), nearly as large as the waterbuck, but distinguished by a long beard and mane. The character of the waterbuck for fierceness and daring also belongs to the takhaitze, and both are swift runners. The latter, however, is less attached to the water, and frequents a hilly region, browsing goat-like upon the leaves of the acacia.
The third of this genus is the “roan antelope,” (Aigocerus equinus), a strong fierce animal, with horns curving backwards as in the blue-buck, but thicker, and more rapid in the curve. It is an antelope not of the plains, but a dweller in the hilly region.
The “sable antelope” (Aigocerus niger) is by far the most beautiful animal of the group. It is not many years since this antelope was made known to science, having been discovered in South Africa by a keen British sportsman. It is one of the largest of the race, standing four feet six inches in height, and carrying a pair of scimitar-shaped horns over three feet in length. Its colour is a deep glossy black or sable—whence its specific appellation—though it is white underneath with white markings about the head and neck. None of the antelopes of this group are of common occurrence even in their native haunts. None of the species can be called gregarious—that is, they do not appear in large herds, like the springboks, gnoos, hartebeests, or bonteboks—though small troops of less than a dozen—families, in fact—may be seen together. Oftener they are met with in pairs, or single individuals, and they are all scarce in the regions they inhabit when compared with the vast herds of the more social kinds.
The blue-buck is now one of the very rarest of the group, so much so that some naturalists believe it to be extinct. That is not likely. Africa is a large country.