Tragelaphus angasi, G. F. Angas, P. Z. S. 1848, p. 89, pls. iv. (♂), v. (♀); id. Kaffirs Illustrated, p. 51, pl. xxix. (1849); Gray, P. Z. S. 1850, p. 144; id. Knowsl. Menag. p. 27 (1850); id. Cat. Ung. B. M. p. 138 (1852); Proudf. P. Z. S. 1850, p. 199; Baldwin, Afr. Hunt. p. 76 (1854); Gerr. Cat. Bones B. M. p. 246 (1862); Fitz. SB. Ak. Wien, lix. pt. 1, p. 174 (1869); Brooke, P. Z. S. 1871, p. 485; id. P. Z. S. 1878, p. 884 (cranial characters); Buckley, P. Z. S. 1876, p. 285; Thomas, P. Z. S. 1891, p. 387; Flow. & Lyd. Mamm. p. 347 (1891); Scl. P. Z. S. 1892, p. 98 (Shiré R.); Ward, Horn Meas. p. 157 (1892); id. Rec. Big Game, p. 200 (1896); Lyd. Horns and Hoofs, p. 252 (1893); Scl. P. Z. S. 1893, p. 729 (B. C. Afr.); Lyd. Roy. Nat. Hist. ii. p. 275 (1894); Rendall, P. Z. S. 1895, p. 359 (R. Tembé); Thomas, P. Z. S. 1896, p. 798, 1897, p. 939 (B. C. Afr.); Pousarg. Ann. Sci. Nat. iv. p. 81 (1897); Johnston, Brit. Centr. Africa, p. 305 (1897); Rendall, Novitat. Zool. v. p. 212 (1898); Trouess. Cat. Mamm. p. 957 (1898); Selous, Sharpe, and Neumann, in Ward’s Great and Small Game of Africa, pp. 455–462, fig. 39, & pl. xiii. fig. 4 (1899).
Strepsiceros angasi, Turner, P. Z. S. 1850, p. 171.
Euryceros angasii, Gray, Cat. Rum. B. M. p. 48 (1872); id. Hand-l. Rum. B. M. p. 119 (1873).
Vernacular Names:—Inyala of the Amatongas; Bö of the Shiré districts.
Height at withers of adult male about 42 inches; of lighter and more graceful build than T. eurycerus. General colour of head, neck, and body a slate-grey, with a tinge of yellowish red. Head with forehead reddish, and area around eye fawn-coloured; upper lip and chin white; two widely-separated white cheek-spots on each side;
-shaped white nasal stripe distinct and mesially divided. Back of ear white below, tan above. Neck distinctly darker in hue than the shoulder and rest of the body; a transverse white patch at the lower end of throat; no corresponding patch at upper extremity of throat. Body from shoulder to root of tail marked with indications of about fourteen pale transverse stripes, some six of these standing out more clearly than the rest; a few white spots, mostly low down upon the haunches. Tail nearly black above, at sides, and at tip; white below. Fore legs black above the knee on the outer side and on inner side halfway up to the chest; a large white patch above close to chest; knee also white on inner side and behind; portion between knee and fetlock a rich fawn-colour; fetlocks and pasterns black behind and above the hoofs in front; a white spot on the inner side of fetlocks, and two on front of the pastern. Hind leg coloured like the front leg, with the front and inner side of the thigh and of the hock white, the two white patches separated by a black band; no white patch on the inner side of the fetlock.
Long mane of dark hair extending almost from chin along throat, chest, and each side of belly, and fringing the front of the thigh almost to the hock, and the back of it up to the root of the tail. There is also a dorsal mane extending from the nape to the neck, reversed from the base of the neck; the hairs black or brown in colour along the nape of the neck from the occiput to the shoulder, tipped with white from the shoulders to the tail. Tail cervine, thickly hairy throughout.
Horns black, pale amber-coloured at the tips, ridged in the basal half; about 29 inches long round the curve, and 24 in a straight line; usually with a single, and rarely with a double, curvature.
The skull of an adult male gives the following measurements:—Basal length 12 inches, orbit to muzzle a little over 7, width almost 5.