334 



ORDERS OF MAMMALIA. 



to US an animal closely similar to tlie existing American 

 Tapir. In this particular instance, however, we know that 

 the restoration is incorrect, since the discovery of a com- 

 plete specimen of this species has shown that it was a 

 slender, graceful, and long-necked animal, resembling in its 

 general figure a Llama or certain of the Antelopes. 



Fig. 631.— Outline of Pakeotherium nmgnum, restored, after Cuvier. Ujiper Eocene. 



As regards its dentition, the genus Pake other iitm pos- 

 sessed a complete series of teeth, almost continuously placed, 

 the canines not being excessively developed. The dental 

 formula is — 



3—3 



1—1 4—4 3—3 



1—1'^ 4—4 3—3 



44. 



The molars and pra^molars (fig. 635) resemble those of 

 the Ehinoceros in many points, but the lower molars have 



Fig. (530. — Grinding surface of tlie molar teeth of the upper, jaw oi Paheotheriuni 

 crnssuM, one-half the natural size. (After Owen.) 



a distinctly doubly - crescentic form. All the premolars, 

 except the first, resemble the molars in structure. On 

 the other hand, in the genus Palaplothcriuiii, abundantly 



