590 DR. J. E. GRAY ON THE BUSH-BUCKS. [June 20, 



We have three specimens of this species, male, female, and young, 

 in the British Museum. Two were from the South- African Museum. 



2. Grimmia splendidula. (The Guinea Duyker.) 

 Cephalophus grimmia, var. 1, Gray, Cat. Ungul. B. M. p. 79. 

 Fur bright reddish yellow ; nose with a black streak ; underside 



of body white. 



Hab. Coast of Guinea : St. Paul de Loanda. 



A fine male in the Museum, presented by Edward Gabriel, Esq. 



It is very difficult to refer the figures of these animals to the 

 right species ; but this species and the G. irrorata are distinguished 

 from G. nictitans by the whiteness of the underside, which in that 

 animal is pale yellow-brown ; and the two other white-bellied 

 species differ in the hair being punctulated or uniform — all cha- 

 racters very difficult to represent in small figures. 



3. Grimmia irrorata. (The Natal Duyker.) (Skull, fig. 1, 

 p. 591.) 



Cephalophus meryens, var. burchellii (part.), Sundevall. 



Cephalophus grimmia, Gray, P. Z. S. 1857, t. 57. f. 1 ; Knowsley, 

 Menag. t. 1, 2. f. 3. 



Cephalophus campbellue (part.), Gray, Cat. Ungul. p. 80. 



Antilope ocularis, Peters, Reise nach Mossambique, Saugeth. t. 39 

 (male), t. 41. f. 1 (skull), t. 42. f. 1 (skull). 



Antilope altifrons (part.), Peters, Mossambique, t. 37 (female 

 only), t. 38. f. 2 (skull, female). 



Fur greyish buff, beneath white. Male: fur paler; nose slightly 

 black, varied. Female : fur grey, from the black tips of the hairs ; 

 nose with a decided black streak. 



Hab. Natal. 



There is in the Museum a male and female of this species, re- 

 ceived from M. Sundevall as coming from Natal. I am now in- 

 clined to consider this quite distinct from C. campbellice, with which 

 I have formerly united it. 



The two animals {Antilope ocularis, male and its skull, and 

 A. altifrons, female) figured in Dr. Peters's ' Mammalia of Mozam- 

 bique' very much resemble the two specimens, the male and female, 

 from Natal, in the British Museum — indeed, so much so, you might 

 believe that they were drawn from the Natal specimens ; but the 

 skull, with the horns, which Dr. Peters figures as that of A. alti- 

 frons (male, t. 38. f. 1) appears to have the horns decumbent in- 

 stead of ascending, and to have a very long compressed nose, which 

 induces me to believe that it belongs to another species, very much 

 like my Cephalophus longiceps. The figure of the skull of the male 

 C. ocularis (t. 41. f. 1) differs in the shape of the impression in 

 front of the orbit from that of the female C. altifrons (t. 38. f. 2), 

 which leads me to believe they may be two species, as Dr. Peters has 

 considered them ; or it may be sexual, for it is very curious that Dr. 

 Peters figures the same sexes as there are in the British Museum. 



