-^ Fauna : Mammals 



There is no trace of any upper canine tooth or tusk in any 

 adult sheep, ox, goat, antelope or giraffe ; but these tusks are 

 retained by many of the deer, and in some of them are developed 

 to a much greater extent than in the tragulids. In all this 

 great group of Selenodonts the lower canine tooth is pushed 

 closely up to the lower incisors, and any ordinary observer 



282. THE WATEK CIIEVKOIAIN 

 From a female specimen from Central Liberia, presented by author to Zoological Gardens 



would mistake it for a fourth incisor. In the Tragulids the 

 lower canine is slenderer, slightly more pointed, and not pressed 

 quite so close up to the third incisor as it is in all the Pecora. In 

 the female Water chevrotain the upper canine is quite a small 

 and useless tooth, a mere vestige, which only projects about 

 an eighth of an inch from the gum ; but in the full-grown 



725 



