Ccelenterates 51 



mud or sand when alarmed or " resting " 

 after a heavy meal. Most of the species 

 are extremely voracious and can expand 

 to engulf animals several times their own 

 bulk. Their stinging powers, although 

 not as formidable as those of certain 

 jelly-fish, are considerable, and whilst at 

 once fatal to small animals are quite 

 appreciable to the human touch. 



The short, dark-red, yellow-spotted 

 Strawberry Anemone, the Plumose An- 

 emone, which resembles a lady's powder- 

 puff, and the large, solid Dahlia Anemone, 

 so called from its resemblance to that 

 flower, are beautiful forms all well 

 known to all seaside visitors interested in 

 natural history. The Parasitic Anemone 

 is remarkable in being usually associated 

 with hermit crabs, adhering to and often 

 enveloping their shells. Whilst no doubt 

 adding to the hermit's burden, it effec- 

 tively guards him from many foes. Its 

 formidable tentacles are shot out from 



