CONTENTS. IX 



CHAPTER IX. 



CYDIPPE POMLFOBMIS. 



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. 



TUBULARIA 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 RAMOSUM. 



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 XII. 



HYDRACTINIA SQUAMATA. 



Organization and general habits of Hydractinia. Reproduction 

 of Hydractinia p. 115-119 



CHAPTER XIH. 



SERTULARIAN ZOOPHYTES. 



Structure of the Sertularian Polypary. History of Sertularia 

 potyzonias. Reproduction by cuttings 5 byPlanulse; 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- 



