356 TUE WASATCU AND IJltlDGEK rAUN.E. 



which is a flat oval in section. The crown is but Httle curved, shghtly 

 compressed, and without edge or groove. The premohirs graduate into the 

 mohirs, so that the hue of distinction is not easily drawn. The first premolar 

 has a single root : the crown is slightly conic, with a small tubercle at the 

 base behind. Thi.s tubercle increases in size on the premolars 2 and 3, and 

 becomes on the true molars a longitudinal cutting edge extending along the 

 axis of the crown, not much elevated above a wide base. It occupies half 

 the length of the crown in the larger molars, and is preceded by an elevated 

 conic cusp. In front of the base of this, a small conic tubercle projects 

 forwards, which appeared as a rudiment on the third premolar. • I'he num- 

 ber of mandibular teeth wouhl appear to be, Pm. 4, M. 3. No portions 

 certainly referable to the superior molars were found. 



There are no cingula on the teeth, and the enamel is perfectly smooth. 

 The appearance of the crowns as well as of the bones indicates an adult 

 animal. 



The measurements are as follows : 



Length of m.ilar bono 073 



De]>tli of malar bone in front 016 



Depth of malar bone at postorbital angle 0"2:? 



Depth of malar bone at niidtlle of orbit 015 



Tliickni'ss of malar bone at middle of orbit 013 



Length of crown of canine tooth (worn) '. 020 



Diameter of base fore and aft 013 



Diameter of premolar (1) fore and aft 006 



Length of crown of pri-niolar 006 



Length of biisc of premolar (2) Oil 



Height of crown of premolar 009 



Length of crown of triu? molar 018 



Width of crown of true molar OOS 



Height of cutting edge 005 



The internal face of the trochlear portion of the astragalus is nearly 

 plane, not oblique, as in most of the Crvodonta. The external side is a little 

 more inclined, especially opposite the anterior extremity of the trochlea, 

 where the inferior portion is produced into a horizontal process. The head 

 is not expanded tran.sversely, the internal tuberosity l)eing very low, and 

 the infero-extemal side concave. The sustentacular facet is small and iso- 

 lated. There are no horizontal processes of the distal extremity of the 

 calcaneum as are commonly seen in Creodont genera. The inferior face of 

 the calcaneum is concave in cioas-section for its distal half The second 



