ASMODEUS SCOTTI 



141 



molar I. With such an interpretation, we find the incisors 

 normal, the canine normal though not as large as in the 

 permanent set, and the two-cusped tooth is the first milk 

 premolar. The last tooth in the series is considerably 

 different from the premolars and is evidently permanent 

 molar I , which is about the size and character of this tooth 

 in A. scotti, much too small to belong to A. osborni. This 

 set of milk teeth differ from the permanent teeth in that 

 the premolars do not have the anterior, inner and posterior 

 cingulum, characteristic of the permanent dentition. 



The following measurements are taken from Ameghino: 



Upper dentition, inc. I to pm. 4 

 Upper dentition, premolar 2, length 

 Upper dentition, premolar 3, length 

 Upper dentition, premolar 4, length 

 Upper dentition, molar I, length 

 Upper dentition, molar 2, length 

 Upper dentition, molar 3, length 



104 mm. 

 18 mm. width 25 mm. 



20 mm. 

 23 mm. 

 28 mm. 

 37 mm. 

 50 mm. 



width 28 mm. 



width 35 mm. 



width 39 mm. 



width 44 mm. 



width 48 mm. 



