On the other hand the range of the Sable Antelope does not leave out Northern Zambezia and Barotseland. It begins in Eastern Africa, in the latitude and neighbourhood of Mombasa (a fact first suggested in my book on Kilimanjaro, published in 1885), broadens over what was formerly “German East Africa,” passes round the south end of Tanganyika into Southern Congoland and crosses Barotseland into Eastern Angola. Here, in the south-eastern basin of the Kwanza, and possibly in north-western Barotseland as well, it develops its most superb form—_Hippotragus variani_, generally called the Giant Sable—with magnificently developed horns, longer than those of any other type found elsewhere, and a longer, narrower skull. It is possible (from heads I once saw, shot to the west of the main Upper Zambezi and specimens of horns) that the Giant Sable may be found just within the limits of Barotseland.[3] North of the belt of dense forest between the Liba and Kabompo, on the spongy plains near to the river, Livingstone noticed in the rainy season large numbers of Buffaloes, Elands, Kudus, Roan Antelopes, Gnus, and other game. He even avers that farther north he saw a White Rhinoceros. It was on a Sunday and his encampment was almost surrounded by herds of astonished Mpala antelopes, tsesebes (“bastard hartebeests”), zebras and buffaloes. But although the Black Rhinoceros is undoubtedly found in Southern Angola close up to the Barotse frontier, and the White has been shot immediately south of the Upper Zambezi, no word has come from any other quarter as to the existence of the monstrous White square-lipped species in the direction of the Upper Zambezi and the Congo watershed; so it is possible his eye-sight was deceived. [Illustration: Giant Sable Antelope, from Angola (From a specimen in the Museum of the New York Zoological Society presented by JOHN JAY PAUL.)] In general, Barotseland, east of the main Zambezi and of its great north-western affluent the Lungo-e-bungo, seems to possess the mammal and bird fauna of Northern Angola, Southern Congoland, Northern Rhodesia and Nyasaland. Moçambique is richer—up to the Shire river—in possessing the Black (I used to think also the White, and perhaps was not wrong) Rhinoceros, and a few other creatures found also in Eastern Equatorial and in Trans-zambezian Africa. Otherwise Moçambique remains rather an unsolved problem, as to why and how it served as an interruption in the spread of the vertebrate fauna of Pliocene and Pleistocene North Africa down to South Africa, an extension which as regards West-Central and Western Africa may have been barred by the former enormous area of dense forest growth. * * * * *