273 



SUBKINGDOM CCBLEKTEKATA. 



they attach themselves ab will to any solid object. Their 

 mouth is surrounded by hollow tentacles, by which they 



seize their food, and 

 quickly benumb it. Cut 

 into pieces, each part 

 3 V / *^#i quickly grows into s 



perfect animal. 

 Mg. ueif. 



Campanularia voluHUis. 



The Campanularia 

 are allied to the Sertula- 



Fresh water Hydras. 1. Stem of plant ; 2. Hydra ^^^- From their b 6 1 1 - 

 attached and, Imdding ; 3. Parilr/ expanded; shaped CUpS there drop 

 i. Fully expanded; 6. Free and progressing. i , j. 'j. f 



Medusoids. After leading an independent and locomotive 



existence for a time, these produce ova and sperm-cells, 



the resulting embryos of which fix themselves mg. ms. 



and develop into plant-like colonies, from 



which fresh medusoids may bud. The Med- 



usoid little resembles the plant-like Zoophyte 



from which it thus springs. It sails through 



the water by the contraction of its bell, the 



tentacles hanging like a fringe below, and the four radiating 



canals leading to its central stomach. 



