CONTENTS 



PAGE 



Subclass i. Elasmobranchii 3^6 



Example of the Subclass — Scyllium and Mustelm ■ • 3^6 



Subclass 2. Holocephali (omitted) 394 



Subclass 3. Teleostomi 394 



Example of the Subclass — Salmofario .... 395 



Subclass 4. Dipnoi 4°5 



Example of the Subclass — Ceratodus fosteri . ■ • 4°5 



Class 3. Amphibia 4°7 



Example of the Class — Rana temporaries . . . 408 



Class 4. Reptilia 433 



Examples of the Class — Lizards, turtles, crocodile . . 434 



Class 5. Aves 456 



Example of the Class — Coluniba livia .... 457 



Class 6. Mammalia 491 



Example of the Class — Lepus funiculus . . . .491 



