xii ILLUSTRATIONS 



FIG. PARE 



23. Prox furcatus. Left antler 1GO 



24. A. Left fore-foot of the Red Deer 162 



B. Left fore-foot of the Roe 162 



C. Second row of tarsals and metatarsals of Gelocus . 162 



25. A. Left fore-foot of Hyasmoschus aquaticus . . . 168 

 B. Left fore-foot of Hyopotamus 168 



26. Skull of a Short-horned Bull 175 



27. Skull of the Gazelle 176 



28. Skull of the Bison americanus 180 



29. Skull of the Anoa 181 



30. Skull of Cainotherium metopias 183 



31. Skull of the Tapir (Tapirus americanus) . . .191 



32. Back molar, below to the left, of Lophiodon parisi- 



ensis 192 



33. Skull of Elasmotherium 197 



34. A. Skull of Brontotherium ingens 199 



B. The same from above with a drawing of the brain . 199 



35. Palseotherium. Hipparion. Horse . . . . . 202 



36. Left hind-foot of Anchitherium . . . : .204 



37. Right upper cheek-tooth of the Horse . . . . 209 



38. Foot of the fossil Horses of North America . . . 213 



39. Macrauchenia patagonia . . . . . . . 229 



40. Polished molar of Mastodon angustidens . . . 232 



41. Portion of a cheek-tooth of Mastodon elephantoides . 233 



42. Portion of a cheek-tooth of the Mammoth, polished 



sideways 235 



43. Skull of Dinotherium giganteum 237 



44. Skull of Dinoceras mirabile 241 



45. Skull of the Delphinus lagenorhynchus, Gray . . . 249 



46. Right fore-leg of Delphinus delphis . . . .250 



47. Tooth of Squalodon 253 



48. Teeth of the Fox 261 



49. Lower jaw of Icticyon 266 



50. Skull of Tillotherium fodiens, from above ... .286 



51. Foetal teeth of the Greenland Seal . . 290 



