56o 



DEPTHS OF THE OCEAN 



way of root-like outgrowths, by means of which they adhere 

 to soft bottom and can accordingly reside there normally. 

 Plant-growths have much to do with the distribution of bottom- 

 animals, providing foundations for attached forms ; some few 

 species appear to be associated solely with one particular kind 

 of plant, whether it be eelgrass or laminaria or some other 



conorenial alofa. 



A. A. 



"■3^*' 



