_Antilope forfex_, =H. Sm.= Griff. An. K. iv. p. 221, v. p. 334 (1827) (from Pennant’s “Gambian Antelope”); =Less.= Compl. Buff. x. p. 289 (1836); =Reichenb.= Säug. iii. p. 110 (1845). _Antilope adenota_, =H. Sm.= Griff. An. K. iv. p. 223, v. p. 335 (1827); =A. Sm.= S. Afr. Quart. J. ii. p. 209 (1834); =Reichenb.= Säug. iii. p. 110 (1845). _Kobus adansoni_, =A. Sm.= Ill. Zool. S. Afr. text to pl. xxix. (1840). _Antilope annulipes_, =Gray=, Ann. & Mag. N. H. x. p. 267 (1842). _Adenota buffoni_, =Fitz.= SB. Ak. Wien, lix. 1, p. 174 (1869)[10]. VERNACULAR NAMES:--_Æquitoon_ of the Joliffs, and _Kob_ of the Mandingos, at the Gambia (_Whitfield_, fide _Gray_). Similar in general character and markings to _C. thomasi_, but size much smaller, form slenderer, and markings less strongly defined. The black leg-markings are present, though not so deeply black as in the last species, and are succeeded below by a white ring round the pasterns, separating them from the hoofs. Back of pasterns hairy. Horns much smaller than in any of the allied forms, only attaining a length of about 14–15 inches. _Female._ Similar, but without horns. Skull measurements (♂):--Basal length 9·5 inches, greatest breadth 4·45, orbit to muzzle 5·9. _Hab._ W. Africa, from the Gambia to the Niger. In the twelfth volume of his celebrated ‘Histoire Naturelle,’ the great French naturalist Buffon distinguished two Antelopes from Senegal as the “Koba” and the “Kob.” Of the difficulties experienced by subsequent authors in deciding what Buffon’s “Koba” really was, we have already spoken in our article on _Damaliscus korrigum_ (Vol. I. p. 60). But as regards the “Kob” there can, we think, be no question that Buffon’s “_Kob, ou petit vache brune de Sénégal_” is clearly the same as that which we now call _Cobus kob_, and propose to designate in English “Buffon’s Kob,” to distinguish it from its fellows of the same group. Erxleben, in 1777, seems to have been the first writer to Latinize Buffon’s vernacular name as “_Antilope kob_.” In this he was followed by most of the early systematists, who, however, added nothing to our knowledge of the animal. Little more, in fact, was known of this Antelope until about 1827, when a fresh description of it was published by Hamilton Smith in Griffith’s edition of Cuvier’s ‘Animal Kingdom,’ taken from a pair of animals then living in the Menagerie at Exeter Change. Colonel Hamilton Smith, being uncertain whether this was the true “Kob” of Buffon, gave it a new name, _adenota_, derived from the small gland situated on its back ἀδἡν, _glandula_, and νῶτος, _dorsum_). There can be no doubt, however, that Hamilton Smith’s description of his _Antilope adenota_, which is accompanied by a very fair figure of the male, refers to Buffon’s Kob. Another name bestowed upon this Antelope by Hamilton Smith, in the same work, was _Antilope forfex_, based on Pennant’s “Gambian Antelope.”