1873. J VJ [Cope. 



prominent. The navicular facet is as broad as long, and nearly sessile, 

 being probably separated by a groove from the tibial. The cuboid facet 

 is subround, small and sublateral. The calcaneal situated diagonally 

 opposite each other. The antero-internal is twice as large as the other, 

 is transverse and truncate internally by a facet near the apex, at right 

 angles. The other calcaneal facet is subround. 



Measurements. 



M. 

 Length ramus mandibuli to anterior margin of coro- 



noid process 0.310 



Length premolars and molars 218 



" last molar crown 040 



Width " " " 030 



" " premolar crown 018 



Length last premolar 025 



Width symphysis at canines 045 



Diameter canines 5 028 



" " $> 023 



Length exposed portion incisor 2 026 



Width crown " " 0245 



Length diapophysis atlas 047 



Width " " 056 



" facet for axis 053 



" glenoid cavity scapula (straight) 086 



Length coracoid from inner basis 045 



" proximal articulation fibula 027 



" distal " »« 042 



Diameter shaft " 022 



Total length astragalus (fore and aft) 072 



" width " 065 



Length navicular facet 045 



Width " " 034 



" cuboid " 025 



Length " " 023 



" anterior calcaneal do 040 



Width " " 024 



Length posterior " 021 



" fibular (axial) 043 



The teeth are slightly rugose, and the inferior canines show a tendency 

 to imitate the form of the incisors in a slight basal angular expan- 

 sion of the crown. This forms an approximation to the tapirs. The 

 middle pair of incisors is directed outwards, is the smallest, and like 

 all the others has the roots much exposed. 



This species was originally described from teeth of the upper jaw. I 

 have since obtained the entire mandible (except the angles) taken out at 



