To face page 7i 







May. 



Ju 



NE. July. 



September. 





I5 i 



8 ; 14 27 2 



7 8 



6 1 16 



Calanus fin^ X 



X 



X X 



X X 



X 



X 



Pseudocalai • • 



X 



.. 



X 



X 



X 



Centropages • • 





X 



X 



X 



X 



Temora lonj ■ ■ 





X X 



X X 



X 



X 



Thalestris p^ • • 













Centropages X 





X 



X X 





X 



Candace pec • • 





X 



X 





X 



Acartia clau X 



X 



X X 



X X 



X 





Oithona sim • • 



X 



X X 



X X 



X 



X 



Thaumaleug • • 













Parapontells • • 













Thalestris Ir • ■ 













Metridia an X 









X 



X 



Ectinosoma • • 





X 





X 





Anomalocen • ■ 







X 







Harpacticus • • 







X 





X 



Isias clavipf • ■ 











X 



Bradyidius ; ■ ■ 











X 



Ectinosoma • • 











X 



Laophonte 













X 



Corycaeus s] 













X 



Oncoea mad 













X 



Number of 1 4 



4 



5 7 



6 9 



8 



15 



Depth of tc 2 



2 1 



0* 3 









Sea tempera ^^ 



52 I 



)3 54 











