1 62 



THE OCEAN WORLD. 



navigate Lake Thau meet," says Fredol, "at certain periods of the 

 year with numerous colonies of a species about the size of a small 

 melon, nearly transparent, whitish like water when it is mixed with 



Fig. 54. — Chrysaora Gaudichaudi. 



an extract of aniseed. One would be tempted to take these animals 

 at first for a collection of floating mushn bonnets/' 



The Medusae are furnished with a mouth placed habitually in the 

 middle of a nectocalyx or of an umbrella. This mouth is rarely 

 unoccupied. Small molluscs, young crustaceans, and annelids, form 

 their ordinary food. In spite of their soft substance, they are most 



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