FOURTH WEEK] June 159 



looping along the fronds of seaweed or swimming with 

 the same motion. Another variety of shrimp resembles 

 the common wood-louse found under pieces of bark, but 

 is most beautifully iridescent, glowing like an opal at the 

 bottom of the pool. The curious little sea-spiders keep 

 me guessing for a long time where their internal organs 

 can be, as they consist of legs with merely enough body 

 to connect these firmly together. The fact that the thread- 

 like stomach and other organs send a branch into each of 



WOOD-LOUSE SHRIMP. SEA-SPIDER. 



the eight legs explains the mystery and shows how far 

 economy of space may go. Their skeleton-forms, having 

 the appearance of eight straggling filaments of seaweed, 

 are thus, doubtless, a great protection to these creatures 

 from their many enemies. Other hobgoblin forms with 

 huge probosces crawl slowly over the floors of the anemone 

 caves, or crouch as the shadow of my hand or net falls 

 upon them. 



The larger gorgeously coloured and graceful sea-worms 



