228 



TOILERS IN THE SEA. 



(aconttum) severed rather than let go its hold" 1 



(fig- 47). 



The anemone has no circulating fluid but the 

 results of digestion mixed with salt water, no blood- 

 vessels but the vacuities among the tissues, and no 

 passage way for excrement, except the mouth and 



FIG. 47. ACONTIA OF SEA-ANEMONE. 



the pores of the body, that serve for the escape of 

 water on the contraction of the animal. 



1 Mr. G. H. Lewes, in his " Seaside Studies," doubts the 

 validity of this fact, and indeed he claims that " the hypothesis 

 which assigns to the thread capsules a function of urtication is 

 without a single fact to warrant it." 



