PATAGONIAN EXPEDITIONS : PALEONTOLOGY. 



EXPLANATION OF PLATE LXV. 



Fig. I. Neoreomys australis, juv.: Skull, base, X -^. No. 15,222. 



Fig. 2. '' '' Palate and upper teeth, X f . No. 15,302. 



Pal,y palatines. 

 Fig. 3. ? Neoreomys australis : Right upper milk-premolar (dp^), X f . 



No. 15,936 . 



Fig. 4. Neoreomys australis, juv.: Right upper teeth, X -^. A. M. N. H. 



No. 9,168 



Fig. 5. Neoreomys australis : Left upper teeth, X |^. No. 15,813. 

 Fig. 6. Neoreomys australis, juv.: Left lower teeth, X ^. A. M. N. H. 



No. 9,540 



Fig. 7. Neoreomys australis, juv.: Left lower teeth, X -^. No. 15,619. 



Fig. 8. '' '' Left lower teeth, X |. No. 15,499. 



Fig. 9. '' '' Left lower teeth, X \. A. M. N. H. No. 



9,580. 

 Fig. 10. Neoreomys australis : Left lower teeth, X\, No. 15,394. 

 Fig. II. '' '' Mandible, crown view, X ^. No. 15,226. 



Fig. 12. Neoreomys variegatus, type: Left lower teeth, crown view; 



X \, Ameghino collection ....... 



Fig. 13. ScLEROMYS ANGUSTUS : Palate and upper teeth, X \. A. M. N. H. 



No. 9,304. . . . 



Fig. 14. ScLEROMYS ANGUSTUS : Left lower teeth, crown view, X^. Ame- 

 ghino collection. 

 Fig. 15. ScLEROMYS osBORNiANUs: Left lower teeth, crown view, X^. 



Ameghino collection 



Fig. 16. Stichomys REGIUS : Skull, top, X^. A. M. N. H. No. 9,495 - . 

 Fig. 17. Stichomys regularis : Palate and upper teeth, X f. A. M. N. H. 



No. 9,512 



Fig. 18. Stichomys regius : Fragment of left ramus mandibuli, with p4 and 



m^, Xf. A. M. N. H. No. 9,495 



Fig. 19. Stichomys regularis : Right upper teeth, crown view, Xf . No. 



15,555 



Fig. 20. Stichomys regularis : Left ramus mandibuli, side view, X \, No. 



15,423 



Fig. 20a. Stichomys regularis : Left lower teeth, crown view, X f . No. 



15,423. 

 Fig. 21. Adelphomys candidus : Right" lower teeth, crown view, Xf. 



Ameghino collection 



Fig. 22. Spaniomys RiPARius : Skull, right side, X^. A. M. N. H. No. 9,529. 



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