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CONTENTS 



Chapter IX 

 The Evolution of the Vertebrate Eye 



The Vertebrate Phylum ..... 



1 . The Phylogeny of the Vertebrate Eye 



2. The Ontogeny of the Vertebrate Eye 



3. The Emergence of the Vertebrate Eye 



4. The General Structm-e of the Vertebrate Eye 



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233 

 237 



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Chapter X 

 The Eyes of Cyclostomes 



The Class of Cyclostomes 



1. The Ammoccete Eye 



Light-sensitive Cells 



2. The Lamprey Eye . 



259 

 261 

 263 

 263 



Chapter XI 

 The Eyes of Fishes 



General Configviration of the Eye . 

 The Class of Fishes 



L The Selachian Eye . 



2. The Holocephalian Eye 



3. The Teleostean Eye 



4. The Dipnoan Eye 



5. The Coelacanth Eye 



6. The Chondrostean Eye 



7. The Holostean Eye 

 Anomalies in the Eyes of Fishes 



(a) The Tubular (Telescopic) Eye 

 (6) The Amphibious Eye 



(c) Stalked Eyes . 



(d) The Migratory Eye . 



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Chapter XII 



The Eyes of Amphibians 



The Class of Amphibians 

 General Configuration of the Eye. 



1. The Anuran Eye 



2. The Urodelan Eye . 



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Chapter XIII 

 The Eyes of Reptiles 



The Class of Reptiles . 



General Configuration of the Eye 



1. The Lacertilian Eye 



2. The Chelonian Eye . 



3. The Crocodilian Eye 



4. The Rhynchocephalian Eye 



5. The Ophidian V.ye . 



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