CONTENTS. IX 



CHAPTER IX. 



CYDIPPE POMIFORMIS. 



Graceful evolutions. Wonderful tentacular apparatus. Food, 

 and mode of catching it. Insensibility to pain. Persistence 

 of vitality. Reproduction of Beroe p. 90-98 



CHAPTER X. 



TUBULABIA INDIVISA. 



Tubularia indivisa ; its structure and habits. Reproduction of 

 lost head. Growth of Polypary. Propagation of Tubularia. 

 Artificial multiplication of Polyps p. 99-105 



CHAPTER XI. 



EUDENDRIUM RAMOSUH. 



General description of this zoophyte. Beautiful specimen ob- 

 tained by Sir J. G. Dalyell. Reproduction of Eudendrium. 

 Structure of Planula. Pyrulse. Phenomena of Medusi- 

 parous generation p. 106-114 



CHAPTER XH. 



HYDRACTINIA SQUAMATA. 



Organization and general habits of Hydractinia. Reproduction 

 of Hydractinia p. 115-119 



CHAPTER Xm. 



SERTULARIAN ZOOPHYTES. 



Structure of the Sertularian Polypary. History of Sertularia 

 polyzonias. Reproduction by cuttings ; by Planulse ; by ve- 

 getative growth of new branches and Polyps. . . p. 120-127 



CHAPTER XIV. 



CAMPANULARIAN ZOOPHYTES. 



How distinguishable from the Sertularian races. History of 

 Campanularia dichotoma. Medusiparous reproduction. Re- 



