The National Collection possesses other examples of this Antelope, besides a fine series of heads and horns, mostly from Rajpootana and the Punjáb, belonging to the splendid collection of these objects presented to the British Museum by Mr. A. O. Hume, C.B. In order to show the large dimensions to which the horns of the adult male Black-buck attain in Rajpootana and Hurriana we give a drawing (fig. 45) of a beautiful pair still in the possession of Mr. Hume, which attained a length of no less than 28¼ inches measured in a straight line. On referring to the long list of the dimensions of the horns of this Antelope published in Mr. Rowland Ward’s ‘Records of Big Game,’ it will be found that only one pair of greater length than the horns which we now figure have been hitherto recorded. We also give (fig. 46) a figure of the skull and abnormal horns of a female of this Antelope in Mr. Hume’s Collection. _August_, 1897. GENUS II. ÆPYCEROS. Type. _Æpyceros_, =Sund.= Pecora, K. Vet.-Ak. Handl. 1845, p. 271 (1847) Æ. MELAMPUS. Size large. No anteorbital glands. Tail fairly long. False hoofs absent. Hind feet with glandular tufts of hair placed shortly above the hoofs. Skull without supraorbital pits or anteorbital fossæ; lachrymal vacuities small. Horns of male medium or rather long, broadly lyrate, half-ringed, slightly compressed. Female hornless. _Range of the Genus._ Southern Africa, northwards to Angola on the west, and to the Southern Soudan on the east. Of this genus we are at present prepared to recognize only two species--the Common Pallah of Southern and Eastern Africa (_Æ. melampus_) and that of Angola (_Æ. petersi_). The latter may be readily distinguished from the ordinary form by having a prominent blackish mark running down the upper surface of the muzzle. [Illustration: THE BOOK OF ANTELOPES, PL. XLVIII _Wolf del, J. Smit lith_ _Hanhart imp._ The Pallah ÆPYCEROS MELAMPUS. _Published by R. H. Porter._] 77. THE PALLAH. ÆPYCEROS MELAMPUS (LICHT.). [PLATE XLVIII.] _Pallah_, =Daniell=, African Scenery, no. 9 (1812).