Type. _Nesotragus_, =Von Düb.= Öfv. K. Vet.-Ak. Förh. iii. 1846, p. 221 (1847). N. MOSCHATUS. No auricular glands or accessory hoofs. Skull with very large anteorbital fossæ, sharply defined above and below, almost as in _Ourebia_; anteorbital vacuity present on each side of the hinder end of the nasal bones; on the sides of the muzzle a long oval vacuity present on the suture between the premaxillary and maxillary bones; nasal opening oval, its sides bowed outwards as usual. Horns half or more the basal length of the skull, strongly slanted back almost to the continuation line of the facial profile; strongly, but finely, closely ridged for their basal half or three-fourths. _Distribution._ East Africa. To this genus there belong two closely allied species, which may be distinguished as follows:-- _a._ Horns small and Colour fawn-grey. Tip of tail like back. slender. 49. _N. moschatus_. _b._ Horns longer and Colour more Tail blackish above. thicker. rufous. 50. _N. livingstonianus_. [Illustration: THE BOOK OF ANTELOPES, PL. XXVIII. _Wolf del. Smit lith._ _Hanhart imp._ The Zanzibar Antelope. NESOTRAGUS MOSCHATUS. _Published by R. H. Porter]_ 49. THE ZANZIBAR ANTELOPE. NESOTRAGUS MOSCHATUS, VON DÜB. [PLATE XXVIII.] _Nesotragus moschatus_, =Von Düben=, Öfv. K. Vet.-Ak. Förh. iii. 1846, p. 221 (1847) (French Is., off Zanzibar); =Sund.= Pecora, K. Vet.-Ak. Handl. 1845, p. 322 (1847); =id.= Hornschuch’s Transl., Arch. Skand. Beitr. ii. p. 314; Reprint, p. 134 (1848); =Gray=, Knowsl. Men. p. 8 (1850); =id.= P. Z. S. 1850, p. 119; =id.= Ann. Mag. N. H. (2) viii. p. 137 (1851); =id.= Cat. Ung. B. M. p. 75 (1852); =Temm.= Esq. Zool. Guin. pp. 192, 209 (1853); =Scl.= P. Z. S. 1864, p. 101; =Fitz.= SB. Ak. Wien, lix. pt. 1, p. 164 (1869); =Gray=, Cat. Rum. B. M. p. 30 (1872); =id.= Hand-l. Rum. B. M. p. 99 (1873); =Huet=, Bull. Soc. Acclim. 1887, p. 49; =Ward=, Horn Meas. p. 80 (1892); =Matsch.= Thierw. Ost-Afr. Saügeth. p. 119. _Antilope moschata_, =Wagn.= Schr. Säug., Suppl. v. p. 415 (1855). _Nanotragus moschatus_, =Brooke=, P. Z. S. 1872, p. 642; =Flow. & Lyd.= Mamm. p. 339 (1891); =Lyd.= Horns and Hoofs, p. 217 (1893); =True=, P. U. S. Nat. Mus. xv. p. 478 (1892) (Kilimanjaro); =Jackson=, Badm. Big Game Shooting, i. pp. 285, 310 (1894). _Cephalophorus zanzibaricus_, =Layard=, Cat. Mamm. S. Afr. Mus. p. 72 (1861). _Nesotragus kirchenpaueri_, =Pagenst.= JB. Mus. Hamb. ii. p. 36 (1885) (Kilimanjaro). VERNACULAR NAMES:--“_Grave-Island Gazelle_” of E.-African Sportsmen (_Jackson_); _Suni_ of Kichagas of Kilimanjaro (_Abbott_); _Paa_ of Swahilis (_Fischer_, teste _Matschie_).