General Distribution of the Crustacea. 445 



Table D— Aug. 1-4— Period IV— 12 Series. 



Depth. 



Liaptomus. 



Cyclops. 



D. hyalina 



D.pul 



icaria . 



Total. 



Meters. 



No. Per ct. 



No. 



Per ct. 



No. 



Per ct. 



4.1 

 4 



4.5 

 3 6 





 11 



No. 



Per ct. 





 



.4 

 2.9 1 

 

 



.3 



No. 



Per ct. 



0—3 



3—6 



6—9 



1560 



919 



715 



224 



5 



5 



57.5 



53.4 



52.8 



50.9 



63 



55 



53.3 



1038 



730 



570 



187 



3 



3 



38.2 



42 4 



42.1 



42.5 



37 



33 



113 



69 



62 



16 







1 





 

 5 

 13 

 

 



2711 



1718 



1352 



440 



8 



9 



43.4 

 27.3 

 21.6 



9-12 



7 



12—15 



.1 



15—18 



.1 







Total 



w 3428 



2531 



40.5 



261 



4.2 



18 



1 6238 





Table E —Average catch and percentage for month. 



Depth. 



Diaptornus. 



Cyclops. 



D. hyalina. 



D. pulicaria. 



Total. 



Meters . 



No. 



Per ct. 



No. 



Per ct. 



No. 



Per ct. 



No. 



Per ct. 



No 



Per ct. 



0—3 



3-6 



6—9 



2229 



1257 



592 



133 



6 



4 



70 



65 



59 



36.5 



11.5 



57 



64 



863 

 612 

 329 



176 



28 



2 



2010 



27 



31 



32 



48.3 



53.8 



30 



30.5 



94 

 66 

 46 

 13 

 2 

 1 



3 



3.4 

 4.6 

 3.5 

 4 

 13 

 3.3 



2 

 6 



37 

 42 

 16 

 



.06 



.3 



3.7 



11.5 



30.7 







1.5 



3188 



1941 



1004 



364 



52 



rt 

 4 



48.6 

 29.9 

 15.3 



9—12 



5.4 



12—15 . .. 



15—18 



.8 

 .1 







Total 



4221 



222 



103 



6656 





The facts of this table are shown in PI. VIII, figs. 2-8. 

 Table F — Percentage of total catch found at each level. 



Depth. 



Period. 



Meters. 



I. 



II. 



III. 



IV. 



Av. 



0—3.... 





45.7 



57.6 



43 



41.7 



48.6 



3—6.... 





29.5 



26.9 



34.8 



34.5 



29.9 



6-9. .. 





16.9 



10.6 



15.7 



17.0 



15.3 



9—12... 





5.5 



3.7 



5.7 



6.2 



5.4 



12—15... 





1.9 



1 



.7 



.6 



.8 



15-18 . 





.5 



.1 



.02 



.03 



.1 



