1910.] CUTAXEOUS SCEXT-GLAXDS Ol"" IIUMIXANTS. 873 



of inguinal glands consisting of deep subcylindrical pouciies, 

 with the orifices remote from the mammje. The interdigital 

 cleft was scantily hairy and the heel-tie was very thick as in 

 C. dorsaUs ; and ibhe pedal gland on all four feet consisted of a long 

 expanded sac with a small orifice, as in G. maxicelll and in 

 tS. coronatios. 



C'EPilALOPinUS SILVICULTRIX. 



(The Yellow-backed Duiker.) 



In two dried and fiat skins from the Cameroons, kindly given 

 to me by Rowland Ward, Ltd., I found the feet and pedal glands 

 constructed as in C. nigrlfrons. About the inguinal glands on 

 these skins I can aftirm nothing. Owen, however, says they were 

 present in the species. 



Genus Sylvicapra Ogilby. 

 Sylvicapra coronata Gray, 1842. 

 subsp. campbelli.e Gray (?) 1843*. 



Of specimens referred to this species, I have examined several 

 from various parts of Nigeria, including two young males from 

 Sokoto, presented by Major Searight, and one from Ibadan in 

 the Yoruba country, presented by Mr. T. Christ. 



In all of them the preorbital streak was lightly concave 

 upwards, thus differing in shape from that of the Duikers of the 

 maxweUl group, and also, though in a lesser degree, from that of 

 C. dorsalis. The streak was studded with a sei-ies of 15 or more 

 pores, fi'om which fiuid secretion with a pleasant aromatic odour 

 could be squeezed. Under continued pressure black coiling worm- 

 like threads of a waxy consistency exuded. 



A pair of inguinal glands consisting of wide but (in the young) 

 shallow pits were present. They were much shallower than in C. dor- 

 salis ; but their orifices, as in that species, were situated a long way 

 from the two mammje on each side, lying in fact just on the femoral 

 side of the fold or crease between the inner surface of the thigh 

 and the abdomen; and, as in C. dorsalis, the whole inguinal 

 and mammaiy area of the abdomen was naked as far out as 

 the glandular orifices. The secretion of the inguinal glands 

 smelt like sour milk in two examples, but had an objectionable 

 faecal odour in another. 



The feet were constructed as in other species of this group, 



* According to Gray (Cat. Rum. B. M. p. 23, 1872), C. campheUia: was in 1872 

 repi-eseiiteil in the Britisli Museum by a single skin from West Africa, whicli he 

 marked interrogatively as having been obtained at Sierra Leone. The skin agrees 

 tolerably closely with the Nigerian examples that I have seen. I think, therefore, 

 that Gray was probably correct in assigning his type to West Africa ; and that it 

 was an error to suppose that the name camplelUce belongs to a Natal form of 

 Sylvicapra (Lydekker. ' Game Animals of Africa,' p. 142, 1908). S. coronata Gray, 

 from Senegambia, appears to me to be a paler form of the same species. 



