LIST OF ILLUSTRATIONS. 



PAGE 



Fig. i. The Duckbill {Ornithorhyncus anatinus] . . . .32 



2. Skull of Rat-Kangaroo 35 



,, 3. Skull of Extinct Phalanger ( Thylacoleo carnifex) 37 



4. Banded Anteater (Myrmecobius fasciatus] .... 39 



,, 5. Fore Part of Skull of Babirusa (Babirusa alfums} . . -47 



,, 6. Lower Jaw of Triconodon, or Allied Form . . . .52 



,, 7. Lower Jaw of Phascolotheriiim . . . . . -53 



,, 8. Lower Jaw of Amphilestes . . . . . . -53 



,, 9. Lower Jaw of Homunculus ....... 69 



,, 10. Skeleton of Macrauchenia patachonica ..... 76 



,, n. Skeleton of Hind Foot of Rhinoceros 78 



,, 12. Carpus and Metacarpus of Hyrax and Elephant . . -78 



,, 13. Upper Molar of Macraiichenia .80 



,, 14. Upper Molar of Oxyodontotherium ...... 80 



,, 15. Upper Molar of Astrapotherium . . . . . . 81 



16. Skull of Nesodon 83 



,, 17. Palate of Typotherium ........ 84 



1 8. External Skeleton of Armadillo ( Tatusia giganted] . . . 93 



19. Internal Skeleton of a Glyptodont ...... 95 



,, 20. External Skeleton of Glyptodon clavipes . . . . -97 



,, 21. External Skeleton of Panochthus tuberculatus . . . -99 



,, 22. Tamandua Anteater 102 



,, 23. Skull of Mylodon ......... 104 



,, 24. Skeleton of Scelidothcrium leptocephalum . . . .106 



25. Lower Jaw of Prothylacinus ....... 108 



,, 26. Lower Jaw of Acdestis oweni . . . . . . .no 



,, 27. Lower Jaw of Abderites . . . . . . rii 



,, 28. Lower Jaw of Plagiaulax 149 



,, 29. Skull of Tritylodon 150 



,, 30. Molar of Tritylodon -150 



31. Upper Cheek-Teeth of Plesiadapis 155 



,, 32. Upper Cheek -Teeth of Microcharus 156 



