60 CATALOGUE OF UNGULATES 



and nostrils, not invaginatecl or valvular, but marked 

 externally by bare streaks of skin serially studded with 

 pores ; foot-glands, which are present in both pairs of limbs 

 of the general type of those of the Biobalinm, and the web of 

 the pasterns, which reaches only to the base of the hoofs, 

 closely folded, and on the back devoid of hairs for a longer 

 or shorter distance ; hoofs normal ; lateral hoofs well 

 developed ; inguinal glands present or absent ; when present, 

 widely separated from teats ; teats 4. 



Horns (which are probably heteronymous) frequently 

 present in females ; in both sexes relatively small, simply 

 conical, in males with rugosities near the base, which is 

 often thickened. Skull with lachrymal depressions, but no 

 lachrymal vacuities or supraorbital pits ; frontals prolonged 

 backwards between parietals, ' with horns rising from the 

 extemities of such projections. Upper molars brachyodont, 

 with broad crowns. Vertebrae : c. 7, D. 14, L. 5, s. 4, ca. 9-10. 



The distributional area includes the greater part of 

 Africa to the southward of the northern tropic. 



Genus CEPHALOPHUS. 



Cephalophus, H. Smith, Griffith's Animal Kingdom, vol. v, p. 344, 

 1827 ; Biltimeyer, Ahh. schweiz. jpal. Ges. vol. iv, p. 54, 1877 ; 

 Thomas, Proc. Zool. Soc. 1892, p. 413 ; Sclater and Thomas, 

 Booh of Antelopes, vol. i, p. 121, 1895 ; PococJc, Proc. Zool. Soc. 

 1910, p. 871. 



Cephalolophus,* emendatio, Wagner, Giehel, and others. 



General characters those of the subfamily (of which this 

 genus is the sole representative). Head furnished with a 

 tuft or crest of long bristly hair on the vertex, enveloping 

 the bases of the horns, when these are present. 



The genus may be divided into the following three sub- 

 generic groups : — 



A. Inguinal glands present, in the form of deep pouches, 



opening far away from the teats. 



a. Horns directed backvi^ards in plane of face ; 



ears short Cephalophus. 



b. Horns directed upwards and backwards so as 



to form an obtuse angle with plane of face ; 



ears longer Sylvicapra. 



B. Inguinal glands absent Guevei. 



* In quoting references Cephalophus and Cephalolophus are taken 

 as identical. 



