CONTENTS 



PREFACE .... 



GENERAL REMARKS 



Physiognomy of the Group 



Colour .... 



Relation of Colour to Sex 



HABITS . 



Native Haunts 



Modes of Progression 



Method of Preserving Alive in Glass Vessels 



Changes which ensue in Confinement 



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FOOD 



HISTORY OE THE LITERATURE ON THE NEMERTEANS 



ANATOMY AND PHYSIOLOGY OF THE GROUP 



Generalized Plan or Archetype 



I. ANATOMY OF THE ENOPLA 



1. Cutaneous System 



2. Body-wall . 



3. Proboscidian Sheath . . •. 



4. „ Aperture . 



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