vi CONTENTS 



RHIZOSOLENIA CURVATA ZACHARIAS, AN INDICATOR SPECIES IN 

 THE SOUTHERN OCEAN (published 19th May, 1937) 



By T. John Hart, D.Sc. 



Introduction page 415 



Material and Methods ■ 418 



Observations in the Scotia Sea and South Georgia Area 421 



Observations in the South Atlantic Ocean 426 



Observations in the Southern Indian Ocean and South of Australia .... 427 



Observations South of the Tasman Sea, and in the South Pacific Ocean . . . 428 



General Biology • 435 



Conclusions 441 



References .... 445 



Plate XIV following page 446 



