LIST OF ILLUSTRATIONS. 



156. 

 157- 

 158. 

 159- 

 160. 

 161. 



162. 

 163. 



164. 

 165. 

 i65. 



167. 

 168. 



169, 

 170. 

 171. 

 172. 



I73' 

 174. 



I7S- 

 176. 

 177. 

 178. 

 179. 

 180. 



181. 

 182. 

 183. 



184. 

 18s. 



186. 

 1S7. 



1S8. 

 189. 



190. 

 191. 



192. 

 193. 



194. 

 I9S- 



196. 

 197- 



Proteus anguinus, , . 



Axolotl, . . . ■ 



Triton cristatus. 



Skeleton of the Frog, 



Development of the Frog, 



Footprints oia.Labyrintho- 

 dont, .... 



Skull of a Serpent, . 



Diagram of the circulation 

 in Reptiles, . 



Skeleton of Tortoise, 



Hawk's-bill Turtle, . 



Eye of Serpent and Head 

 of Viper, ■ . . . 



Naja Haje, 



Head of Ringed Snake, 

 of Viper, and of Blind- 

 worm, .... 



Iguana, .... 



Blind-worm, . . . 



Common Skink, • . 



Head of Chameleon, . 



Crocodilus vulgaris, . 



SkuU of Crocodilus lipor- 

 catus, .... 



Ichthyosaurus communis, 



Plesiosaunts dolichodeirus, 



Pterodactylus brevirostris, 



Quill-feather, . 



Skull of Spur-winged Goose, 458 



Pectoral arch and fore-limb 

 of Penguin, . 



Fore-limb of jer-falcon, . 



Hind-limb of Loon, , 



Digestive System of the 

 Common Fowl, 



Lung of Goose, 



Foot of Cormorant and 

 Beak of Goose, . 



Jackass Penguin, ■ , 



Leg of Curlew, Head of 

 Snipe, and Beaiof Avocet, 480 



Crested Heron, 



Foot of Ostrich, and Breast- 

 bone of Emeu, 



Apteryx Australis, . 



Foot of Fowl, and Head of 

 Guinea-fowl, 



Rock-pigeon, . 



Foot of Woodpecker, and 

 • Head of Love-bird, 



Purple-capped Lory, 



Feet and Heads of Inses- 

 sores, .... 



Head of Bullfinch, . 



Foot of Peregrine Falcon, 

 and Head of Buzzard, . 



Foot of Tawny Owl, and 



Head of White Owl, . 502 



Head of Vulture, . . 503 



ArchtBOpteryx macrura, . 504 

 Fore-limbs of Horse and 



Deer, . . . . 5^4 



Teeth of Chimpanzee, . 518 

 Ornithorhynchus paradoxus, 528 



Pelvis of Kangaroo, . 530 



Koala or Kangaroo-bear, 532 

 Dentition of Thylacinus 



■ and Hypsiprymnus, . 533 



Myrmecobius fasciatuSy . 536 



Hand of three-toed Sloth, 538 



Chlamyphorus truncatus, . 540 



Dugong 543 



Skull of Right Whale, . 545 

 Diagram of Baleen-plates 



of a Whale, . . . S47 

 Physeter macrocephalus, . 549 

 Delphinus delphis, , . 550 

 Feet of Ungulata, . , 552 

 Head of Two-horned Rhin- 

 oceros, . . . .554 

 Stomach of a Sheep, . 559 

 SkuU of hornless Sheep, , 560 

 Head of the Red-deer, . 563 

 Head of the Koodoo, . 566 * 

 Skull of the Indian Ele- 

 phant, .... 570 

 Skull of Deinotheriuvit . 572 

 Feet of Carnivora, . . 574 

 Phoca grtenlandica, . , 575 

 Skull of the Walrus, . 576 

 Skull of Jackal, . . 583 

 Skull of Lion, . , . 584 

 Skull of Beaver, . , 587 

 Common Hamster, . . 590 

 Skeleton of Fox-bat, . 393 

 Head of Vampire-bat and 



Fox-bat, ■ . . . 594 

 Skull of Hedgehog, . . 596 

 European Mole, , . 596 

 Green Monkey, . . 599 

 Skulls of Orang and Euro- 

 pean adult, . . . 603 

 Jaw of Dromatherium, . 6og 

 Jaws of Phascolotherium, 

 Triconodon, Amphithe- 

 rium, and Plagiaulax, 610 

 Skull of Diprotodon, . 611 

 ?>y.ti&iOT\ ai Megatherium, 612 

 Glyptodon clavipes, . .612 

 Skeleton of Megaceros Hi- 



bemicus, . . . 614 



Skeleton of Mastodon, . 613 



Skeleton of Mammoth, . 616 



