The head of the “Madoqua” figured by Schweinfurth in ’Im Herzen von Afrika’ (vol. i. p. 266) was probably taken from an example of this Antelope. It was met with along with a species of Duiker in Bongo on the upper waters of the Bahr-el-Ghazal, and observed in pairs among the bushes. Its native name there is “Heggolah.” In the British Museum there are the skull of an adult male of this species and three skins of females from Dembelas, Abyssinia. _December, 1895._ 45. HAGGARD’S ORIBI. OUREBIA HAGGARDI (THOS.). _Nanotragus hastatus_, =Jackson=, Badm. Big Game Shooting, i. p. 285 (1894) (Tana R. & Lamu) (nec Peters). _Neotragus haggardi_, =Thos.= Ann. Mag. N. H. (6) xv. p. 187 (1895) (Lamu). VERNACULAR NAME:--_Taya_ of Swahilis (_Haggard and Jackson_). Size as in _O. scoparia_ and _O. hastata_. Auricular gland well developed. Other external characters not yet positively known. Skull with a rather shorter muzzle than in the common species. Horns very much thicker and heavier than in any of the previous species; the ridges strongly developed and sharply angular. Owing partly to the development of the ridges the front edge of their lower half is convex forwards, while the upper half is as usual concave forwards; viewed from the side the horns therefore appear to have a slight tendency towards the serpentine double curvature characteristic of the Gazelles, although far less developed. Skull dimensions (♂):--Basal length 5·6 inches, greatest breadth 2·97, orbit to muzzle 3·4. _Hab._ Coasts of British East Africa, near Lamu. A fifth species of Oribi, with which as yet we are only imperfectly acquainted, seems to be found in British East Africa and the adjoining districts of Southern Somaliland. Its size is that of the Cape and Zambesian species, and its auricular gland is well developed. But it is readily distinguishable from all the other members of the group by its thick and strongly ridged horns, which contrast markedly with the slender and comparatively smooth horns of all the preceding species. Thomas was originally inclined to refer the three skulls of this Oribi which were received in 1887 from Mr. J. G. Haggard, then H.B.M. Vice-Consul at Lamu, to Peters’s _Ourebia hastata_. When, however, he had afterwards obtained specimens of the Oribi of Nyasaland, which were doubtless to be referred to the form described by Peters, he perceived his error, and proceeded to base a new species upon the specimens in question, assigning to it the name of their collector and donor, according to whom this Antelope is known to the Swahilis at Lamu as “Taya.” [Illustration: Fig. 24. Skull of _Ourebia haggardi_, ♂.] Mr. F. J. Jackson, in his ‘Big Game Shooting,’ gives us the following account of the “Taya”:--