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Show 424 MR. O. THOMAS ON THE ANTELOPES [May 17, horns. It is perhaps a dwarf form of the dorsalis-group, with the black replaced by grey, and the chestnut much lightened in tone. "Were there not, however, so many specimens known, all alike, one might be forgiven for supposing it to be a hybrid between C. coro-natus and C. maxwelli, the former being responsible for the rufous, and the latter for the grey in its generally piebald appearance. 11. CEPHALOLOPHUS DORLE, Ogilb. Antelope (?), Benn. P. Z. S. 1832, p. 122. Antilope doria, Ogilby, P. Z.S. 1836, p. 121 (ex Benn.). Antilope (Cephalophus) doria, Jent. N. L. M . vii. p. 270, pi. ix. (skull) (1885). Cephalophus doria, Jent. N. L. M. x. p. 21, pis. ii. & iii. (animal and skull) (1887). Antilope zebra, Gray, Ann. N. H . i. p. 27 (1838). Size small. General colour pale rufous, broadly banded with black. Face, ears, neck, and shoulders rufous or chestnut, except the nasal region, which is blackish. Back from withers to rump pale rufous, conspicuously banded transversely with deep shining black. Under surface from chin to anus pale rufous, slightly paler than the ground-colour between the bands. Limbs rufous, but with broad black patches on the outer surfaces of the forearms and lower legs, and with the phalanges black all round. Heels with large glandular tufts of black hair on their postero-inferior surfaces. Tail rufous, more or less mixed with black above, white below. Horns in the same line as the nasal profile :- cf. Short (barely two inches long), conical, tapering, sharply pointed, their greatest basal diameter going about 2h times in their length. 5 . Short (less than one inch in an adult), smoother than in the male, but otherwise similar in character. Skull stoutly built. Nasal region broad, flat, parallel-sided. Anteorbital fossae very shallow and little prominent, their bottoms 28 to 31 m m . distant from one another. Frontal region not specially swollen. Horn-cores so pressed downwards and backwards as to cause marked depressions behind and below them on the parietals. Palate with its three posterior notches about level. Dimensions.- d • Height at withers 405 ; ear 75 ; hind foot 175 (in a female, rather older, 185). Skull-basal length 148; greatest breadth 72; orbit to gnathion 87 ; nasals, length 63, greatest breadth 36'7 ; muzzle 55 ; length of upper molar series 48. Hab. Liberia. Long only known from pieces of flat skin, this remarkable animal has now been made thoroughly familiar to mammalogists through the exertions of Dr. J. Biittikofer, who collected many specimens of it, and of Dr. F. A. Jentink, who described them (11. cc). Although its plan of coloration, possession of heel-tufts, peculiar parallel-sided skull, depressed horn-cores, and shallow anteorbital |