SEA-ANEMONES. 293 



indicated by names of colour. Thus we have the 

 snowy anemone (Sagartia nivea), the rosy anemone 

 (Sagartia rosed], &c. Their habits of life, also, 

 seem more various than those of any other genus. 

 One is called the " cave-anemone " (Sagartia troglo- 

 dytes), from its habit of burrowing. Another well- 



The Daisy Anemone (Sagartia bellis). 



known species of Sagartia is called the " daisy " ; 

 whilst a very interesting species has formed some- 

 sort of an alliance with hermit crabs, so that it is 

 usually found covering the shell in which one of these 

 crustaceans has taken up its abode, and is therefore 

 called the parasitic anemone (Sagartia parasiticd). 

 This is not the only sea-anemone which has contracted 



