196 



ANATOMY OF VERTEBRATES, 



the anterior division, and upon the sides of the fore part of the 

 posterior one. A shallow longitudinal channel impresses the 

 middle of the dorsum of the free part. The fungiform papillae are 

 143 scattered along its margins, 



being largest at their under 

 part, and here also appear 

 in a distinct longitudinal 

 group at the middle in ad- 

 vance of the fraenum. The 

 callous processes and fossu- 

 late papillae in the intermolar 

 part resemble those in the 



144 



B;ise of tongue, Camel, lxxxi". 



Camel. In true Kuminants the conical 

 papillae in the fore part of the tongue 

 are elongate, retroverted, and sheathed 

 by an epithelium harder than in the 

 Camelidce : the fungiform papillae, and 

 the large irregular callous projections 

 on the intermolar part are repeated: 

 the fossulate papillae are usually 

 rounded and less in size. In some 

 ruminants, e. g. Aurochs (Bison euro- 

 peus), the tongue is of a deep leaden 

 colour. The muscular, vascular, and 

 nervous structures of the long, pre- 

 hensile tongue of the Giraffe, fig. 144, 

 are described in detail in xcvn' (pp. 

 221-224) : and in relation to the gus- 

 tative function it need only here be 

 noted that the epithelium is thickest 

 at the apex, on the upper surface of 

 which it sheathes the conical papillae, 



Tongue of the Giraffe. x< vir. 



