PATAGONIAN EXPEDITIONS: PALEONTOLOGY. 



EXPLANATION OF PLATE LXV. 



PXGB 



Fig. i. NEOREOMYS AUSTRALIS, juv.: Skull, base, X ^. No. 15,222. . 389 

 Fig. 2. " " Palate and upper teeth, X \ . No. 15,302. 



Pal., palatines. 

 Fig. 3. ? NEOREOMYS AUSTRALIS : Right upper milk-premolar (dp-), X \. 



No. 15,936 390 



Fig. 4. NEOREOMYS AUSTRALIS, juv.: Right upper teeth, X \. A. M. N. H. 



No. 9,168 . . 389 



Fig. 5. NEOREOMYS AUSTRALIS : Left upper teeth, X y. No. 15,813. 

 Fig. 6. NEOREOMYS AUSTRALIS, juv.: Left lower teeth, X T . A. M. N. H. 



No. 9,540 . 390 



Fig. 7. NEOREOMYS AUSTRALIS, juv.: Left lower teeth, X T . No. 15,619. 



Fig. 8. " " Left lower teeth, X i No. 15,499. 



Fig. 9. " " Left lower teeth, X T . A. M. N. H. No. 



9.58o. 



Fig. 10. NEOREOMYS AUSTRALIS : Left lower teeth, X T . No. 15,394. 

 Fig. ii. " " Mandible, crown view, X T . No. 15,226. 394 



Fig. 12. NEOREOMYS VARIEGATUS, type: Left lower teeth, crown view; 



X T . Ameghino collection . . . . . . . 401 



Fig. 13. SCLEROMYS ANGUSTUS : Palate and upper teeth, X T . A. M. N. H. 



No. 9,304 402 



Fig. 14. SCLEROMYS ANGUSTUS : Left lower teeth, crown view, X T . Ame- 

 ghino collection. 

 Fig. 15. SCLEROMYS OSBORNIANUS: Left lower teeth, crown view, X T . 



Ameghino collection ........ 402 



Fig. 16. STICHOMYS REGIUS: Skull, top, X T . A. M. N. H. No. 9,495 . 405 

 Fig. 17. STICHOMYS REGULARIS : Palate and upper teeth, X f. A. M. N. H. 



No. 9,512 . . . . . . . . . . 406 



Fig. 1 8. STICHOMYS REGIUS : Fragment of left ramus mandibuli, with p T and 



m^, X f . A. M. N. H. No. 9,495 407 



Fig. 19. STICHOMYS REGULARIS: Right upper teeth, crown view, Xf. No. 



15.555 406 



Fig. 20. STICHOMYS REGULARIS : Left ramus mandibuli, side view, X T . No. 



15,423 ... 407 



Fig. 200. STICHOMYS REGULARIS : Left lower teeth, crown view, X f . No. 



15.423- 

 Fig. 2 1 . ADELPHOMYS CANDIDUS : Right lower teeth, crown view, X f. 



Ameghino collection ........ 408 



Fig. 22. SPANIOMYS RIPARIUS : Skull, right side, X T . A. M. N. H.No. 9,529. 410 



