CONTENTS. VI I 



FACJE 



Order II. Physostomi .<,... 255 



Order III. Synentognathi 257 



Order IV. Hemibranchii ..... 257 



Order V. Lophobranchii ..... 258 



Order VI. Acanthopterygii .... 258 



Order VII. Pediculata 266 



Order VIII. Plectognathi 266 



Sub-Class III. Dipnoi 267 



Order I. Arthrodira . . . . . .271 



Order II. Sirenoidea . . . . . .272 



Class II. Amphibia 274 



Sub-Class I. Stegocephali -283 



Order I. Lepospondyli ..... 283 



Order II. Temnospondyli . 283 



Order III. Stereospondyli 284 



Sub-Class II. Urodela 284 



Order I. Perennibranchiata .... 284 



Order II. Derotremata ..... 285 



Order III. Salamandrina 285 



Sub-Class III. Anura 286 



Order I. Aglossa 286 



Order II. Arcifera 286 



Order III. Firmisternia .287 



Sub-Class IV. Gymnophiona ..... 287 



Grade II. Amniota ......... 288 



Class I. Sauropsida 291 



Sub-Class I. Reptilia 292 



Order I. Theromorpha ..... 304 



Order II. Plesiosauria ..... 306 



Order III. Chelonia ...... 307 



Order IV. Ichthyosauria 312 



Order V. Rhvnchocephalia . . . 313 

 Order VI. Dinosauria . . . . . .314 



Order VII. Squamata 317 



Order VIII. Crocodilia 326 



Order IX. Pterodactyl ia 329 



Sub-Class II. Aves ....... 330 



Order I. Saururae ...... 343 



Order II. Odontormse 344 



Order III. Odontoholcse 344 



Order IV. Eurhipidurse 345 



Class II. Mammalia . ....... 352 



Sub-Class I. Prototheria 376 



Order I. Monotremata 376 



Order II. Protodonta 377 



Order III. Multituberculata .... 377 



Sub-Class II. Eutheria 378 



Legion I. Didelphia 378 



