_Hippotragus bakeri_, =Heugl.= Ant. u. Büff. N.O.-Afr. (N. Act. Leop. xxx. pl. ii.) p. 16, pl. ii. figs. 6a & b (1863); =Baker=, Nile Tributaries, pp. 475 & 545 (1867); =Scl.= P. Z. S. 1868, p. 214, pl. xvi.; =Heugl.= N.O.-Afr. ii. p. 110 (fig. of head) (1877); =Huet=, Bull. Soc. Acclim. (4) iv. p. 66 (1887); =Flow. & Lyd.= Mamm. p. 343 (1891); =Ward=, Horn Meas. (1) p. 142 (1892); =Lyd.= Horns and Hoofs, p. 246 (1893); =Trouess.= Cat. Mamm. fasc. iv. p. 951 (1898). _Aegoceros bakeri_, =Fitz.= SB. Wien, lix. pt. 1, p. 177 (1869); =Gray=, Cat. Rum. B. M. p. 34 (1872). _Antilope leucophæa_, =Schweinf.= Herz. von Afrika, i. p. 237 (fig. of head), ii. p. 533 (1874). Subspecies _d_. H. e. gambianus. _Aegoceros leucophæus_, var.?, “_Docoi_” or _Whitemouth_ of Mandingoes, =Gray=, Cat. Ung. B. M. p. 103 (1852), whence _Aegoceros koba_, =Gray=, Cat. Rum. B. M. p. 35 (1872); =id.= Hand-l. Rum. B. M. p. 103 (1873). _Hippotragus koba_, =Ward=, Horn Meas. (1) p. 142 (1892); =Matsch.= Mittheil. deutsch. Schutz-gebiet, vi. p. 17 (1893); =Pousargues=, Ann. Sci. Nat. (7) iv. p. 131 (1896); =Trouess.= Cat. Mamm. fasc. iv. p. 951 (1898). _Hippotragus equinus_, =Scl.= P. Z. S. 1896, p. 983, 1898, p. 350 (Gambia) (_Llewelyn_). Vernacular Names:—_Roan Antelope_ of English; _Bastard Gemsbok_ and _Bastard Eland_ of Dutch; _Qualata_ of Northern Bechuanas; _Tai-hait-sa_ of Southern Bechuanas; _Ee-taku_ of Matabilis; _Ee- pala-pala chena_ (White Sable Antelope) of the Makalakas; _Impengo eetuba_ of Masubias; _Oo-ka-mooh-wee_ of Makubas; _Kwar_ of Masaras (_Selous_); _Takayezi_ of Transvaal Zulus (_Rendall_); _Palance_ in Angola (_Bocage_); _Kolongo_ of Kinyamwesi in E. Africa (_Böhm_ fide _Matschie_); _Abu Maaref_ of Upper Nile Arabs (_Heuglin & Baker_). _Anomm_ in Dinka; _Ommar_ in Djur; _Manja_ in Bongo; _Bisso_ in Niam-Niam; _Wunnunguh_ in Golo; _Omahr_ in Bellanda; _Dahngah_ in Ssehre (_Schweinfurth_). Size very large, an adult male standing 56 inches high at the withers. General colour greyish, browner in the two northern subspecies. Top and sides of face black, contrasting markedly with the white muzzle and lips and with a prominent patch just in front of the eyes. On the lower half of this patch the hairs are elongated into a brush. Behind the eyes a second less conspicuous white patch is present. The black, however, is only developed in the adult, young specimens having the face nearly uniform with the body. Ears very long, narrow, pointed, their tips pencilled with black. Mane well developed, brown, directed backward, except just on the withers, where there is a tendency for it to be whorled. Throat-mane long and prominent. Belly white, its definition laterally rather variable. Limbs brownish fawn, black patches occasionally present on the outer sides of the shoulders and forearms. Tail reaching to the hocks, its brush black.