PLATE 11 



Fig. 8. Histogiaiiis .showing frcquencfi of (u/f/regate forms, or percentage of 

 hour hauls in which they were captured from the surface, relative to the same 

 comlitions as specified in the explanation of figure 4. 



Fig. 9. Histograms showing frequency of solitary forms relative to the same 

 conditions as specified in the explanation of figure 4. 



Fig. 10. Histograms showing frequency of arnjregate forms relative to the 

 same conditions as sj^ecified in the explanation of figure (5. 



Fig. 11. Histograms showing frequency of solitary forms relative to the 

 same conditions as specified in the explanation of figure 6. 



I 2iKS ] 



