DISCOVERY OF NEW FOSSIL TAPIR IN OREGON 707 



joins the former cusp with the middle of the anterior cross crest. 

 The protoconid is considerably anterior to the deuteroconid and 

 as in P. robustiLS is united with the paraconid by a ridge. The 

 anterior cross crest is sharply notched, but this structure would 

 probably assume the character of the anterior cross crest in 

 P. robustiis with the wearing down of the deuterocone by use. 

 External cingula appear at the outer margin of the median valley 

 and on the external side of the paraconid. A posterior cingulum 

 is also developed. 



MEASUREMENTS 



Width of the crown of first inferior incisor - - - - - Q^™"" 



Width of the crown of third inferior incisor - - - - - 3i 



Length of the first premolar crown, antero-posteriorly - - - 15 2" 



Wm. J. Sinclair. 



Paly^iontological Laboratory, 

 University of CaHfornia. 



