X CONTENTS 



CHAPTER IV 



PAGE 



THE ECHINODERMATA . . . . . .60 



Anatomy and Classification The whole Series of British 

 Species, their Habitats, etc. Reproduction Facili- 

 ties offered by the Echini for watching the Fertilisa- 

 tion and Consequent Changes in the Egg 



CHAPTER V 

 VERMES THE WORMS . . . . . .82 



Definition of Turbellarians, Nemerteans, Polychaetes, 

 etc. Their various Methods of Reproduction Where 

 to obtain Veliger Stages and how to observe The 

 chief British Forms Description, Habitats, etc. 



CHAPTER VI 

 THE POLYZOA OR BRYOZOA ..... 105 



Place in Classification Definition Commonest British 

 Species Habitats, etc. 



CHAPTER VII 

 THE CRUSTACEA . . . . . .110 



Classification and Inter-relations of Entomostraca, Lepto- 

 straca, Amphipoda, Cirripedia, Isopoda, Stomapoda, 

 Macrura, Brachyura Developmental Stages in each 

 Division Conscious Mimitic Artifice in the Maidse, 

 The Chief British Species Their Habitats, etc. 



CHAPTER VIII 



THE MARINE INSECTA, ARACHNID A, AND MYRIOPODA . .180 



Little-known Forms Mysterious Occurrence of Swarms 

 of Diptera in low-tide Pools The Work that has 

 been done in the Life History of these, etc. 



CHAPTER IX 

 THE MOLLUSC A . . . . . . .184 



Anatomy of Types (Lamellibranch, etc.) Nutrition and 

 Reproduction Artificial Culture of the Oyster The 

 Nudibranchi and Opisthobranchi Their develop- 



