BACKBONED ANIMALS. 



ily, discovered by the " Challenger," are bedecked on all 

 parts with fringes that exactly mimic sea-weed. The 



FIG. 232. The Antennarius marmoratus and its floating nest, formed of 

 gulf-weed. Fish natural size, the nest reduced. 



young pass through many changes before assuming the 

 adult form. 



