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Show 1892.] OF THE GENUS CEPHALOLOPHUS. 415 a'. General colour blackish, with a yellowish lumbar stripe. W . Africa 1. C. sylvicultor, b'. General colour of body grey, of head and neck [Afz. black. W . Afr 2. C.jentinki, h. Size medium or small: hind foot less than 260 mm.; [Thos. basal length of skull less than 220. a'. General ground-colour fulvous, rufous or chestnut. a?. Back not transversely striped. No heel-tufts. a?. Colour quite uniform, no mesial dark markings on face or elsewhere. a4. Size larger; hind foot (? hoof included) 241 m m . Kilima-njaro 3. C.spadi.v,True. b*. Size smaller; hind foot without hoof 193 mm. E. & S.E. Afr 4. C. natalensis, b3. Mesial dark markings present either on face [A. Sm. or back or both. All W . Afr. a*. Darker markings shining black or brown. as. Back uniform rufous, no dorsal stripe... 5. C. nigrifrons, ¥. Back with a black dorsal stripe continued [Gr. on the tail. ae. Tail black and white ; back of hams red or white. a?. Centre line of face decidedly darker than flanks. Dorsal line from nape. aH. Sternal region and back of hams white. Tail tufted at tip 6. C.leucogaster, bH. Sternal region and back of hams [Gr. as dark as or darker than the body. Tail evenly haired, not tufted 7. C. dorsalis, Gr. b~. Face uniformly rufous yellow, like the flanks. Dorsal line from [Waterh. withers 8. C. ogilbyi, b6. Tail nearly wholly black; back of [Pet. hams also black 9. C. callipygus, bK Darker markings bluish grey 10. C. rufi'latus,Gr. b2. Back transversely banded. Heels with tufts. W. Afr 11. C. dorice, Og. /<'. General colour smoky brown or blackish. a2. Size larger; hind foot 210 mm. Face more rufous than body. W. Afr 12. C. niger, Gr. b2. Size smaller; hind foot less than 190 m m . Face like back. a3. Legs greyish brown, like body. a4. Rump not particoloured. Sierra Leone ... 13. C. maxwelli, 64. R u m p particoloured. Cameroons to Zan- [H. Sm. zibar 14. C.mclanorheus, b3. Legs rufous; rump not particoloured. S.E. [Gr. Africa 15. C. monticola, B. Horns, when present, slanting upwards at a sharp angle [Thunb. above the nasal profile; female normally hornless. Ears long, pointed, their length equal to or exceeding the distance from eye to rhinarium. General colour yellow or greyish ; no darker markings on body, but a brown nasal patch present. a. Size smaller: hind foot less than 230 ram.; basal length of skull than 140. [Gr. a'. Colour bright yellow. W . Afr 16. C. coronatus, b'. Colour drizzled greyish brown. Abyssinia 17. C. abyssinicus, b. Size larger: hind foot more than 240 mm.; basal [Thos. length of skull than 145. Southern Afr 18. C. grimmii, L. 29* |