LIST OF ILLUSTRATIONS. 



FIG. PAGE 



159. Skeleton of Rudimentary 



Pelvic Limb of Lialis . . 187 



160. Pelvis of the Small Tanrec 



(Hemicentetes) . . . . 188 



161. Right Side of Pelvis of a Bird 189 



162. Side View of Bones of Pos- 



terior Extremity of Green- 

 land Right Whale (Balcena 

 jnysticetus) 190 



163. Right Side of Pelvis of Frog 191 



164. The two Ossa Innominata of 



the Angler-fish (Lophius] . 191 



165. Skeleton of Rudimentary 



Pelvic Limb of Boa Con- 

 strictor 193 



166. Pelvis of Echidna .... 194 



167. Cartilaginous Skeleton of a 



Limb of Ceratodus . . . 195 



168. Skeleton of Rudimentary 



Pelvic Limb of Lialis . . 196 



169. Skeleton of Rudimentary 



Pelvic Limb of Boa Con- 

 strictor 198 



170. Side View of Bones of Pos- 



terior Extremity of Green- 

 land Right Whale (Halcena 

 inysticetiis) 199 



171. Right Pelvic Limb of Giraffe 200 



172. Leg-bones of the Diver (Co- 



lymbus) 201 



173. Anterior Aspect of Bones of 



Right Leg of Ornitho- 

 rhynchus paradoxus . . 203 



Rudimentary Pelvic Ex- 

 tremity of Ophiodcs . . . 204 



Elongated Tarsus of certain 

 Lemuroids 204 



176. Right Foot of Emeu . . . 205 



177. Left Foot of a. Monitor Lizard 



(Varanus) 205 



178. Skeleton of Right Pelvic 



Limb of Horse .... 209 



179. Right Pelvic Limb of Giraffe 209 

 iSo. Rudimentary Pelvic Extre- 

 mity of Ophiodes .... 210 



Bones of Right Foot of Chee- 



ropus castanotis 



anes of Right Pe; 



(Dipus sEgyptius) 

 Left Foot of a Monitor Lizard 



(Varanits) 213 



184. Vertebrae of an Axolotl . . 216 



185. Lateral View of Sixth Ver- 



tebra of Salamandra . . 216 



186. Atlas and Axis Vertebrae of a 



Chelonian Reptile . . .217 



187. Diagram of the development 



of the Trunk and its Skele- 

 ton 218 



188. Six Trunk-vertebras of the 



IBI. 



182. Bones of Right Pes of Jerboa 

 183. 



FIG. PAGE 



189. Part of the Vertebral Column 



of a Sole 221 



190. Diagram of the further de- 



velopment of the Trunk as 

 shown in a section similar 

 to the last 221 



191. Skeleton of the Thorax of a 



Bird 222 



192. Skull and Branchial Arches 



of a Shark 222 



193. Diagram of a transverse Ver- 



tical Section of the most 

 developed Skeletal Seg- 

 ment 223 



194. Skeleton of Head and Gills 



of Lamprey 224 



195. Diagram of the condition of 



the Skeleton in the Bran- 

 chial Region of a Lamprey 225 



196. Diagram of the condition of 



the Skeleton in the Bran- 

 chial Region of some 

 Sharks 225 



197. Ideal, Generalized Diagram 



of an Osseous Skull . . .227 



198. Transverse Section of the 



Thorax of Man .... 230 



199. Transverse Section of the 



Pelvic Region of Man . .231 



200. Skeleton of Plesiosaurus . . 234 



201. Skeleton of Ichthyosaurus . 234 



202. The Frilled Lizard .... 237 



203. Dorsal Surface of the Cara- 



pace of a Fresh-water Tor- 

 toise (Emys) 239 



204. Ventral Surface of the Plas- 



tron of a Fresh-water Tor- 

 toise (Emys) 240 



205. Armadillo 240 



206. Polypterus 241 



207. Dorsal Surface of the Cara- 



pace of a Fresh-water Tor- 

 toise (Emys) 242 



208. Diagram of a Vertical Section 



of both Carapace and Plas- 

 tron of a Tortoise . . . 242 



209. Diagram of a Feather Papilla, 



seen on two opposite sides . 243 



210. Transverse Section of a Nail 244 



211. Sloth 245 



212. Head of Male or Owen's 



Chameleon 245 



213. The Pangolin (Manis) . . 246 



214. Tail of Rattlesnake . . . . 246 



215. Ornithorhynchus, or Duck- 



billed Platypus .... 247 



216. Mouth of a Whale . . . .248 



217. Four Plates of Baleen seen 



obliquely from within . . 249 



218. Vertical and Horizontal Sec- 



tions of a Tooth .... 250 



