DAWKINS ON THE DENTITION OF HTiENA SPELiEA. 



93 



bilobed form (fig. 6), the depression occupying the position that the 

 ridge more usually occupies. In neither is there the slightest trace 



Fig. 4. 



Fig. 5. 



of a cusp at the inner base of the posterior blade. This, repeated 

 also in the milk dentition as described above, according to MM. 



Fig. 6. 



Croizet and Jobert, is characteristic of SycBua Perrieri* Of the 

 remaining jaws which make up the 18, two are allied to the second 

 group by the small cusp at the base of the posterior blade, and two 

 to the third by the faint division into two lobes of the tubercular 

 surface. One, now in the cabinet of the Eev. H. H. "Winwood, 

 P.G-.S., in the bilobation of the tubercular portion and the develop- 



* Tom cit. PI. 2. Fig. 3. p. 176. 



