1LLUSTEATIONS. 



FIO. FA fTB 



1. Right 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. Right fore and hind foot . . . . 132 



14. Coryphodon. Skull with brain 134 



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



16. Right fore-foot of a Pig 140 



17. Palffiochrerus 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. Right upper cheek-tooth of a Calf, before cutting the 



gum 153 



II. Right 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 



