No. 2324. PECCARIES FROM CUMBERLAND CAVE—GIDLEY. 



677 



may be due to the fact that in the young specimen this tooth had 

 not reached the stage where the roots had begun to form and is 

 therefore so immature as not to have yet acquired its maximum 

 width. 



This specimen is especially interesting, since it affords a com- 

 parison of the milk dentition with that of the type of 31. pennsyl- 



tn w w 





H 



M 2 



O CO 



2 ■" 



o ^ 



vanicus. The unworn condition of the deciduous teeth and the in- 

 complete development of the first permanent molar in this species 

 indicate a somewhat younger individual than Leidy's type. It dif- 

 fers from the latter in (1) the smaller size of the corresponding teeth 

 (see table of measurements), (2) in the narrower proportions of the 

 milk-molars, and (3) in the greater complication of secondary cus- 



