124 



Dwellers of the Sea and Shore 



water as well as In it. Living here for many gen- 

 erations, they have attained, as the result of long- 

 continued exposures by the intermittent tides, an un- 



N 



enteromorpha; a green seaweed. 



usual hardihood for sea plants. Others ^vhich have 

 more recently taken to living here exhibit traces of the 

 fight to maintain their new positions in their emaciated 

 and starved appearance. They have not yet acquired 

 the ability to withstand prolonged absence from the 



