CONTENTS 



XI 



ANIMALS {Continued) : 



General survey of class . 

 Order 1, Graptolithida . 



Type of order, Diplograptus foliaceus 

 General survey of order . 

 Fossil examples 

 Class B, Scyphozoa 

 Class C, Anthozoa 



Type of class, Astratigia dan(e 

 General survey and classification of class 

 Fossil examples 

 Class D, Ctenophora . 



PAGE 



112 



113 



113 



115 



117 



121 



122 



122 



128 



131 



139 



Phylum IV, Platyhelminthes 



140 



Phylum V, Nemathelminthes 



140 



Phylum VI, Trochelminthes 



141 



Phylum VII, Annulata 



Class A, Archi-annelida 



Class B, Hirudines 



Class C, Gephyrea 



Class D, Chaetopoda . 



Type of class, Nereis uirens 

 Summary of Chaetopoda 

 Fossil examples 



141 



142 

 142 

 142 

 142 

 142 

 146 

 146 



Phylum VIII, Echin 



General survey and classification 



Type of phylum, Asterias forbesi 

 Class A, Cystoidea 



General survey of class . 



Type of class, Caryocnfius 



Fossil example 

 Class B, Blastoidea 



General survey of class . 



Type of class, Pentremites 



odermata 



148 



148 

 149 

 154 

 154 

 155 

 156 

 157 

 157 

 157 



