1871.] DR. J. E. GRAY ON THE BUSH-BUCKS. 595 



on the dark-brown hairs ; of outside of limbs, and especially of the 

 middle of the back, longer (forming a vertebral crest), scarcely griz- 

 zled ; rump with a large oval disk of black hair ; legs dark brown ; 

 ears moderate, hairy. 



Hab. Gaboon. 



3. 



Nasal bone of Cephalophus melanoprymmts. 



Female in British Museum. Differs from C. sylvicultrix and 

 C. niger in having the very distinct black patch over the base of 

 the tail, and also in the much greater length and softness of the 

 fur. The fur of C. sylvicultrix is slightly grizzled. 



2. Cephalophus sylvicultrix. (Fig. 4, p. 596.) 



Cephalophus sylvicultrix, Gray, Cat. Ungul. B. M. p. 83; 

 Knowsley Menag. t. 8. f. 1, t. 23. f. 3. 



Fur bristly, rather long, blackish brown, grey-grizzled, with a 

 large yellow spot on the hinder part of the back. 



Hab. West Africa : Sierra Leone. 



Length of skull of adult male 10-f inches ; height at occiput 2\ ; 

 width at condyles 4|, at nasals 4|, from orbit to end of inter max - 

 illaries 6 inches. 



3. Cephalophus ogilbii, Gray, Cat. Ungul. B. M. p. 83 ; 

 Knowsley Menag. t. 8. f. 2. 



Fur rigid, adpressed ; hairs of cheeks and neck very short, of 

 forehead long, pale bay-brown, with a deep-black dorsal streak, 

 paler beneath ; crown and haunches brighter bay. 



Hab. Fernando Po ; Gaboon. B.M. 



Two males in the British Museum, one from Fernando Po, the 

 other from the Gaboon. The latter is brighter bay, and has a 

 rather wider dorsal streak. 



4. Cephalophus badius. 



Cephalophus badius, Gray, Cat. Ungul. B. M. p. 84. 

 Cephalophus dorsalis, Gray, Knowsley Menag. t. 7. f. 1. 

 Cephalophus breviceps, Gray, P. Z. S. 1866, p. 201, t. 2 (junior). 



