The Angolan Pallah was first recognized as a distinct species by Prof. J. V. Barboza du Bocage, a distinguished naturalist of Portugal, in a list of Angolan Antelopes published in the Zoological Society’s ‘Proceedings’ for 1878. M. du Bocage based his description upon two specimens forwarded to the Lisbon Museum by the well-known explorer d’Anchieta. Of these the male was stated to have come from Capangombe, the female from Humbe--two places both in the province of Mossamedes north of the Cunene River. M. Bocage distinguished the new species from _Æ. melampus_ principally by its black face, and dedicated it to the late Professor Peters, of Berlin, whose opinion agreed with his that it was distinct. It is probable that the skull from the Cunene River, obtained by Heer Van der Kellen in October 1885, and referred by Dr. Jentink, in his paper on Mammals from Mossamedes, to _Æ. melampus_, may belong properly to _Æ. petersi_. [Illustration: Fig. 48. Front view of head of Angolan Pallah. (P. Z. S. 1890, p. 460.)] In 1889 Capt. F. Cookson, during a sporting excursion into Hasholand or Kaokoland, in the neighbourhood of the Cunene River met with some twenty or more specimens of this Antelope, and brought back a single head to England. This head, mounted by Mr. Rowland Ward, was exhibited by Sclater at a meeting of the Zoological Society on June 17th, 1890, as an example of _Æpyceros petersi_. The notice of Sclater’s exhibition published in the Zoological Society’s ‘Proceedings’ was accompanied by an illustration, which, by the kindness of the Council of the Zoological Society, we are enabled to reproduce (fig. 48). The dimensions of these horns are given by Mr. Rowland Ward, in his ‘Records of Big Game’ (1896), as 18¾ inches in a straight line and 22¾ on front curve, and the distance between the tips as 12¼ inches. So far as we know, this is all the evidence to be offered as to the existence of this species, concerning which further particulars would be very desirable. There is no example of it in the British Museum. _August_, 1897. GENUS III. SAIGA. Type. _Saiga_, =Gray=, List Mamm. B. M. p. xxvi (1843) S. TATARICA. _Colus_, =Wagner=, Schreber’s Säugeth. Suppl. iv. p. 419 (1844) S. TATARICA. Size medium. Nose large, elongate, bent downwards, and inflated; the nostrils opening downwards. Tail short. Mammæ 4. Accessory hoofs present. Skull with short nasals and premaxillaries, and an exceedingly large and high nasal opening; small supraorbital pits; no lachrymal vacuities; anteorbital fossæ shallow. Lower premolars two, at least in the recent species. Horns of medium length, cylindrical, rather irregularly lyrate, strongly ringed, pale whitish or amber-coloured. Female hornless. _Range of the Genus._ Steppes of S.E. Europe and Western Asia. One species only. [Illustration: