vi - CONTENTS 



Phylum Ohordata — continued. 

 Class II. Pisces — continued. 

 Sub-class II. Holocephali 

 Sub-class III. Teleostomi 



1. Example of the Sub-class — Salmo fario 



2. Distinctive Characters and Classification 

 Systematic Position of the Example 



3. General Organisation .... 



Sub-class V. Tlie Dipnoi .... 



1. Examjile of the Class — (Jcratodii^ (Neocenitodns) foderi 



2. Distinctive Characters and Classification 

 Aj)pendix to Pisces — The Ostracodermi 



PAOK 



188 



196 



198 

 217 

 224 

 224 



246 



246 



257 

 261 



Class m. Amphibia 



1. Example of the Class — Rana te'inporaria or Rana esculenta 



2. Distinctive Characters and Classification . . . . 

 Systematic Position of the Example . . • . 



3. General Or£;anisation 



264 



264 

 292 

 294 

 294 



Class IV. Reptilia 



1. Exauqjle of the Class — Laccrta 



2. Distinctive Characters and Classification 

 Systematic Position of the E.xamjjle 



3. General Organisation of Recent Reptilia 



4. Extinct Groups of Reptiles 



313 



314 

 334 

 337 

 338 

 371 



Class V. Aves 



1. Example of the Class — Columba livia 



2. Distinctive Characters and Classification 

 Systematic Po.sition of tlie E.xample 



3. General Organisation 



Sub-class I. Archicornithes . 



,, II. Neornithes . . . . 



378 



378 

 4(18 

 417 

 417 

 418 

 420 



