123 
a‘, Size larger; hind foot (? hoof included) 9°5 in.—E. Africa. 
21. C. spadiz. 
b+. Size smaller ; hind foot without hoof 7:5 in.—S.E. Africa. 
22. C. natalensis. 
6°. Mesial dark markings present either on face or on back or on both. 
a*, Darker markings shining black or brown. 
a°®. Back uniform rufous, no dorsal stripe. 
a®, Ground-colour pale bay, lighter below; chin white ; 
hoofs normal.—E. Africa. . . 23. C. harveyt. 
6°. Ground-colour dark chestnut above and below; hoofs 
elongated.—W. Africa. . . . 24. C. nigrifrons. 
6°. Back with a black dorsal stripe continued on to the tail.— 
All W. Africa. 
a®. Tail black and white ; back of hams red or white. 
a’. Centre line of face decidedly darker than flanks. 
Dorsal line from nape. 
a’. Sternal region and back of hams white. Tail tufted 
BG WD, 6% nnn Oem Ceucogasten: 
68. Sternal region and back of hams as dark as or 
darker than the body. ‘Tail evenly haired, not 
hikfe oe rr On C..dorsalis. 
v7, Face uniformly rufous yellow, like the flanks. Dorsal 
line from withers . . . . 27. €. ogilbyi. 
6°. Tail nearly wholly black ; back of hams also black. 
28. C. callipygus. 
6+. Darker markings bluish grey.—W. Africa. 
29. C. rufilatus. 
6?. Back transversely banded. Heels with tufts.—W. Africa. 
30. C. dorie. 
b'. General colour smoky brown or blackish. 
a?. Size larger; hind foot 8-25. Face more rufous than body.— 
Wee ainicte ees SC OL. CO. niger: 
6?, Size smaller ; hind foot less than 7°5 in. Face like back. 
a°. Legs greyish brown, like body. 
a*. Rump not particoloured.—Sierra Leone. 
32. C. maxwelli. 
