LIST OF ILLUSTRATIONS. 



PLATE I. 



No. 



Fig. 1. Neotoma floridana, skull from above 2056 



Fig. 2. " " skull in profile 2056 



Fig. 3. " " left jaw, outside 2056 



Fig. 4. " " skull from below 2056 



Fig. 5. " ferruginea, skull from above 12114 



Fig. 6. " " skull in profile 12114 



Fig. 7. " " left jaw, outside 12114 



Fig. 8. " " skull from below 12114 



• PLATE II. 



9. Neotoma cinerea, skull from above 4262 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 



10. 

 11. 

 12. 

 13. 

 14. 

 if.. 

 L6. 



17. 



Fig. 18. 

 Fig. 19. 

 Fig. 20. 

 Fig. 21. 

 Fig. 22. 

 Fig. 23. 

 Fig. 24. 

 Fig. 25. 

 Fig. 26. 

 Fig. 27. 

 Fig. 28. 

 Fig. 29. 

 Fig. 30. 

 Fig. 31. 

 Fig. 32. 

 Fig. 33. 

 Fig. 34. 

 Fig. 35. 

 Fig. 36. 

 Fig. 37. 

 Fig. 38. 

 Fig. 39. 

 Fig. 40. 

 Fig. 41. 



" " skull in profile 4262 



left jaw, outside '. 4262 



" " skull from below 4262 



" magister, right jaw, outside - 12207 



Sigmodon hispidus, skull from above 4763 



" " skull in profile 4763 



" " left jaw, outside 4763 



" skull from below 4763 



PLATE III. 



Hesperomys leucopus, skull from above 



" skull in profile 



" left jaw, outside 



" skull from below 



gossypimts, skull from above 



" skull in profile 



" left jaw, outside 



" skull from below 



michiganeitsis, skull from above.. 



skull iu profile . .. 



" left jaw, outside. . 



skull from below. 



'• skull from above.. 



skull in profile 



left jaw, outside .. 

 " skull from below . . 



aureolas, skull from above 



" skull in profile 



" left jaw, outside 



" skull from below 



Evotomys gapperi, skull from above 



" " skull in profile 



" left jaw, outside 



" " skull from below 



1944 

 1944 

 1944 

 1944 

 4765 

 4765 

 4765 

 4765 

 1673 

 1673 

 1673 

 1673 

 1796 

 1796 

 1796 

 1796 

 2023 

 2023 

 2023 

 2023 

 1757 

 1757 

 1757 

 1757 



IX 



