100 BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY, 



protocone isolated, but the hypoconc, as in all kuowu Chalicotherioids, is united 

 with the aietucone by u low ridge (nietaloph). 



FiG'JRK 18. — Superior premolars and first molar of Chalicotherium elatum X f. 



The j"'ailable figures and descriptions are so imperfect that the relation- 

 ships of tliis species to those of the Old World cannot be definitely made out. 

 It is, however, decidedly smaller than that which occurs at Pikermi (Ancy- 

 lotherium). 



Measurements. 



m. m. 



Third premolar, antero-posterior diameter, .024 ; transverse, .025. 

 Fourth " " " .025 ; " .028. 



First molar, " " .036 ; " .033. 



