CONTENTS 



GEPHYEEA AND PHOKONIS 



CHAPTER XV 



GEPHYREA 



PAGE 



INTRODUCTION ANATOMY DEVELOPMENT SIPUNCULOIDEA PRIA- 

 PULOIDEA ECHIUROIDEA EPITHETOSOMATOIDEA AFFINITIES OF THE 

 GROUP 411 



CHAPTER XVI 



PHORONIS 



HISTORY HABITS STRUCTURE RKPRODUCTION LARVA METAMORPHOSIS 



LIST OF SPKCIES AND LOCALITIES SYSTEMATIC POSITION . . . 450 



POLYZOA 



CHAPTER XVII 



POLYZOA 



INTRODUCTION GENERAL CHARACTERS AND TERMINOLOGY BROWN BODIES 

 HISTORY OUTLINES OF CLASSIFICATION MARINE POLYZOA OCCUR- 

 RENCEFORMS OF COLONY AND OF ZOOECIA OVICELI.S AVICULARTA 

 VIBRACULA ENTOPROCTA 465 



CHAPTER XVIII 

 POLYZOA continued 



FRESH-WATER POLYZOA PIIYLACTOLAEMATA OCCURRENCE STRUCTURE OF 

 CKISTATELLA DIVISION OF COLONY MOVEMENTS OF COLONY RETRAC- 

 TION AND PROTRUSION OF POLYPIDES IN POLYZOA STATOBLASTS TABLE 

 FOR DETERMINATION OF GENERA OF FRESH-WATER POLYZOA REPRO- 

 DUCTIVE PROCESSES OF POLYZOA DEVELOPMENT AFFINITIES META- 

 MORPHOSISBUDDING 492 



CHAPTER XIX 



PCLYZOA continued 



CLASSIFICATION GEOGRAPHICAL DISTRIBUTION PALAEONTOLOGY METHODS 

 FOR THE EXAMINATION OF SPECIFIC CHARACTERS TERMINOLOGY KEY 

 FOR THE DETERMINATION OF THE GENERA OF BRITISH MARINE POLYZOA 515 



ADDENDUM TO CHAETOGNATHA 534 



INDEX . r,35 



