CONTENTS 



SALPA FUSIFORMIS CUVIER AND RELATED SPECIES (published 4 October 196 1) 

 By P. Foxton 



Introduction P^S^ 3 



Acknowledgements .... 



Materials and Methods 



Synonymy and Previous Descriptions 



Description of the Species . 



Key to the Species. 



Morphological Characters of Taxonomic Importance 



Distribution 



Summary 



References 



Appendix 



Plates I, II 



4 



4 

 6 



8 



IS 

 IS 

 27 

 29 



30 

 31 

 following page 32 



THE NATURAL HISTORY AND GEOGRAPHY OF THE ANTARCTIC KRILL 

 {EUPHAUSIA SUPERB A D^A^.4) (published 9 November 1962) 



By James Marr 



Introduction 37 



Acknowledgements 4° 



Early Records and Recent Literature 4° 



Scope of the Observations 4^ 



Material and Data S3 



Methods in the Field S3 



Identification of the Species S5 



Laboratory Methods S^ 



Distribution in Outline S7 



Physical Environment "4 



Pack-ice ^4 



Surface temperature 7S 



The Larval Stages ^^ 



Vertical distribution °° 



The developmental ascent 97 



Deep and shallow horizontal dispersal 99 



Diurnal vertical migration i°5 



Some biological implications of the developmental ascent and its influence on the distribution 



and conservation of the euphausian population 118 



The developmental ascent in relation to the local distribution of krill in the Ross Sea . . 123 



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