CONTENTS 



Introduction. 



Importance of the catches. Comparison with those of the Michael Sars 

 Expedition. The methods of catching. Some systematic questions 

 settled and the knowledge of the geographical and bathymetrical dis- 

 tribution of some forms greatly enlarged. Tendency of present systematic 

 studies on medusae. State of preservation. Colours of the material; 

 measurements. Lists of the Scyphomedusae collected by previous 

 expeditions in the South Atlantic and Antarctic Oceans. The material 

 of the 'Discovery', 'Discovery IT and 'Wilham Scoresby' discussed page 22,'^ 



The material. 



Tamoya haplonema, F. Miiller 339 



Periphylla hyacinthina, Steenstrup 345 



Nausithoe punctata, Kolliker 3^5 



Atolla wyvillei, Haeckel 3^6 



Atolla chuni,Y2LnhozStn 379 



Pelagia noctiluca, Forskal 3^6 



Chrysaora fulgida, Reynaud 388 



Desmonema gaudichaudijhesson 389 



Desmonema chierchiana,Yanhoef{en 390 



Phacellophora ornata (Verrill) 391 



Additional remarks on the pigment of fresh material 393 



Bibliography 394 



Plates XIV, XV following page 29(> 



