2Q2 SEA-ANEMONES, ZOOPHYTES, ETC. 



the water the anemones occasionally catch them. 

 Some species can slowly move from one place to 

 another by means of the base of the column, after the 

 manner of a snail crawling. Perhaps the most noble 

 looking of all this group of animals is the plumose 

 anemone (Actinoloba dianthus\ whose crown of fea- 

 thered tentacless entitle it to the name of " sea- 

 pink." Its base is more expanded than is usual 

 with other sea-anemones. The species called the 



Fig. 222. 



The Orange-disked Anemone (Sagartia venusta}. 



"orange-disk anemone" (Sagartia venusta) is named 

 from its prevailing colour ; the tentacles, how- 

 ever, being a pure white. The genus Sagartia 

 was so named by Gosse on account of their 

 possessing peculiar kinds of darts, stored - up in 

 " nettling cells," which they can protrude so as to 

 benumb and overcome their prey. They are the 

 most active of all the sea-anemones, and bear the 

 most variegated colours, so that some species are 



