CONTENTS 



Introduction .... 

 Economic Importance 

 Classification of the Arthrostraca 



PART 1. Amphipoda . 



Key to the Sub-orders of Amphipoda 

 Anatomy 



General Form of Body and Telson 

 Appendages 

 Antenna 

 Mouth Parts 



Gnathopods and Pereiopods 

 Abdominal Appendages 

 Sense Organs 

 Internal Anatomy 

 Sexual Differences 

 Size 



Color . 

 Habitat 

 Movements 

 Food . 

 Enemies 

 Resistance to Adverse Conditions 

 Mohing .... 



Nests and Nest-building 

 Breeding Habits 

 List of Species 



Hyperiidea . . ... 



Gammaridea .... 



Key to the genera of Gammaridea 

 Caprellidea .... 



PART 2. ISOPODA 



Key to the Sub-orders of Isopoda . 

 External Anatomy 

 Internal Anatomy 

 Biology . . 



