DISTRIBUTION OF YOUNG STAGES OF EUPHAUSIA SUPERB A 153 



extent the numbers taken may be an indication of the comparative abundance of the 

 two forms. 



The six diagrams show that, with the exception of FurciHa stages 5 and 6, larval forms 



TIME 1400-ieOO 



0200-0600 



FURCILIA I. 



If 



FURCILIA ?- 



I- 



i 



FURCILIAS-6 



^ SOO-250 



f 



Fig. 73. Diagram showing diurnal vertical migration in Furcilia stages of Euphausia stipcrba. The areas 

 enclosed by broken lines indicate results obtained from inadequate data. 



were present in greater or less abundance, from the surface down to 1000-750 m., the 

 lowest depth to which nets were fished. In the Furcilia 5 and 6 the 750-500 m. net is 

 the deepest in which larvae were discovered. But while it is true that the 1000-750 m. 



