MAMMALIA. 83 



Adult, stuffed. West Africa. Gambia. Presented by the Earl 

 of Derby. 



Female, adult. 



Young : brighter coloured ; streak on nape more distinct ; tip 

 of tail black. 



OSTEOLOGY. 



Skull, adult male. West Africa. Presented by the Earl of 

 Derby. 



Skull, young male. Gambia. Presented by the Earl of Derby. 



Two skulls, young. Gambia. Presented by the Earl of Derby. 



**** j nees no t tufted. Ears moderate, rounded. Horns conical, 

 thick, without any streak over the eye. 



7. CEPHALOPHUS SYLVICULTRIX. The WHITE-BACKED 



BUSH BUCK. 



Blackish brown, minutely grey grisled. Hair brown, with 

 whitish tips. Back with a large yellowish white spot, narrow in 

 front. Throat, chest and belly redder. Crown, nape and legs 

 darker. Horns ? Varies in the size of the dorsal spots. 



Antilope sylvicultrix, Afzel. Nov. Act. Upsal. vii. 265. t. 8, 1811. 

 A. Cervicapra sylvicultrix, Desm. Mam. 462; Fischer, Syn. 467. 



654. 

 A. Cephalophus sylvicultrix, H. Smith, Griffith A. K. iv. 258. 



t. 187, v. 846. 



Cephalophorus sylvicultrix, Gray, Ann. fy Mag. N. H. 1846, 165. 

 Cephalophus sylvicultrix, Knowsley Menag. 10. t. 23. f. 3, t. 8. 



f. 1 ; Proc. Zool Soc. 1850, 120. 

 Sylvicapra sylvicultrix, Sundevall, Pecora, 67. 

 Bush Goat, Colonists, Sierra Leone. 

 Hob. Sierra Leone, in swampy places. 



A young male. Sierra Leone. Presented by the Earl of Derby. 



8. CEPHALOPHUS OGILBII. TheBLACK-sTRiPED BUSH BUCK. 



Pale bay brown, with a deep black dorsal streak, beneath pale. 

 Crown and haunches brighter bay. Neck, withers and side of 

 the dorsal line varied with deep brown hairs. Streak up the 

 fore-legs, upper part of hock, feet above the hoofs, and end of 

 tail, black. Horns short, thick, conical, very rugose on the inner 

 front edge of the base. 



Antilope Ogilbii, Waterhouse, Proc. Z. S. 1838, 60; 1842, 129. 

 Cephalophorus Ogilbyi, Gray, List Mamm. B. M. 163. 

 Cephalophus Ogilbii, Gray, Ann. $ Mag. N. H. 1842, x. 267 ; 



