450 



31 r. K. 1. l*ocock on some 



nllejred jijenora and sul)goiicia. Since tliat year, however, 

 stiulv ol' eeitain other exiernal features — notaljly the rliina- 

 riuniaiul |ienis — have supplied additional eharaeters to those 

 derived tVoiu the skull, horns, tail, distribution ol" hair, and 

 outward lorni, wliicli, I think, justify Gray's elaiin that tiie 

 {{roups arc worthy of generic recognition. Probably oilier 

 eharaeters bearing out this view will come to light M'ith the 

 examination of further material. 



So far as the cutaneous glands are concerned, tlic genera 

 have the following maiidy neuative features in common : — 



Preorbital glands, as in all African Tragelaphines, are 

 absent. 



Inyuinal glands are invariably absent, as in the Trage- 

 laiihine genera Taurotragus, Busclaplnis, and Tctraceros. 



Pedal glands of the interdigital ly[)e are also invariably 

 absent, as in all Tiagelapliines. 



Glands on the false lioujs are absent, as in Tragelaptius. 



Two pairs of inununce are present, as in all Tragelaphines. 



Genus Bos, Linn. 



J5««, Linn. Syst. Nat. eil. 10, p. 1758 : type, taunis. 



Rhinarhwi (figs, 1, A, B ; 3, C) large ; viewed from the 

 front its upper margin is evenly convex from side to side 

 and the median area below the line of the widely separated 

 expanded nostrils is wider than the intcrnarial septum 

 throughout its extent, the hairs of tlie upper hp extending 

 inwards neitlier beneath the nostrils al)0ve nor along the 

 edge of the up[)er lip below ; above the edge ojf the lip there 

 runs \ii)wards a short shallow median groove, which is 

 present in all genera, and thus disproves Lydekker's state- 

 ment (Cat. I'ng. in Brit. jNlus. i. p. Il/iyi2) that the 

 rhinarium in the Jiovinre is undivided. A few scattered 

 hairs arise from the rhinarium inferiorly, and its surface is 

 sculptured and reticulated. The anterior portion of its 

 dorsal surface is exposed to a varying degree in accordance 

 with the extent to which the hair of the upper side of the 

 muzzle spreads forwards between the nostrils; but the naked 

 upper edge of the nostrils is always of considerable Avidth 

 and depth, and not narrowed as in Bison and Puephagus. 

 The extension of the hair between the nostrils above varies 

 according to the breed, being greater, for instance, in British 

 park cattle {B. tnwus) than in Indian humped cattle (7i. in- 

 dicns) ; but intergradation between these two forms seems 

 to be supplied by other breeds of B. taarus. 



