EXPLANATION OF PLATE XV. 



Mimomys majori Hinton. 



Lateral views of teeth represented in Figs. 99, 104 and 105. 



1. Mimomys majori. Right m^, very young, outer view; crown view, 



Fig. 99, 17 and 1046. 



2. 31. majori. Left m^ adult, outer view ; crown view. Fig. 105, 7. 



3. M. majori. Right m-^ young, outer view; crown view. Fig. 105,6. 



4. M. majori. Right m-^ youngish, outer view; crown view. Fig. M)5, s. 



5. M. majori. Right »ij young, outer view ; crown view. Fig. 105, 15. 



6. 31. majori. Right wij young, outer view; crown view. Fig. 105,3. 



7. 31. majori. Right »«i adult, outer view; crown view. Fig. 105, IL 



8. 31. majori. Left m^ young, outer view ; crown view. Fig. 105, 13. 



9. 31. majori. Left wij young, outer view ; crown view. Fig. 105, 4. 



10. 31. majori. Right m^ young adult, outer view ; crown view. Fig. 105, 12. 



11. 31. majori. Right m^ young, outer view; crown view. Fig. 105,9. 



12. 31. majori. Left m^ young, outer view; crown' view. Fig. 105, l 



The groove which forms the external vestige of the reduced fourth outer 

 fold is a prominent feature in figs. 1, 3, C, 11 and 12 of this jjlate; it 

 can be seen also in fig.s. 4, 5, and S. 



