234 



ANIMALS OF LAND AND SEA 



Professor Moseley wrote that on the "Challenger" a giant 

 Pyrosoma was caught in the deep-sea trawl. It was like a 

 great sack with its walls of jelly about an inch in thickness, 



Figs. 680-685. Various Coelenterates. 

 For explanations of the figures see p. xxxiii. 



four feet in length and ten inches in diameter. With his fingers 

 he wrote his name on the surface of this giant Pyrosoma as it 

 lay on deck in a tub at night, and in a few seconds his name 

 came out in letters of fire. 



Among the other tunicates some of the salps are often very 

 bright, the chains glowing with a white and more or less 



