ILLUSTRATIONS. 



FIO. 



1. Eight hand of a River Tortoise . . 36 



2. A. Lower jaw of Plagiaulax minor .... 99 

 B. Lower jaw of Plagiaulax medius 99 



3. A. Lower jaw of Neoplagiaulax ..... 101 

 B. Lower jaw of Bettongia penicillata . . . . 101 



4. Skull of Diprotodon australis ..... 103 



5. Skull of the Wombat (Phascolarctus fuscus) . . . 105 



6. Skull of Nototherium, side view ..... 105 



7. Skull of Nototherium, front view . . . . . 106 



8. Skull of the Giant Sloth 113 



9. Skull of the Three-toed Sloth 115 



10. Head of Glyptodon clavipes ...... 124 



11. Left fore-foot of Anoplotherium . . . . . 129 



12. Left fore-foot of the Peccary ..... 130 



13. Coryphodon. Bight fore and hind foot . . . . 132 



14. Coryphodon. Skull with brain ..... 134 



15. A Tuberculate and a Crescentic Tooth . . . . 138 



16. Eight fore-foot of a Pig 140 



17. Palseochcerus typus, left upper jaw . . . . . 143 



18. Second lower molar of the Hippopotamus, to the right 145 



19. First upper molar of the Hippopotamus, to the right . 146 



20. Hippopotamus, right fore-foot 147 



21. I. Eight upper cheek-tooth of a Calf, before cutting the 



gum 153 



II. Eight cheek-tooth of a Calf, after cutting the gum, 



artificially polished, from behind and the outside 153 



22. Auchenia hesterna. Second left upper cheek-tooth . 157 



