34 



COPEPODA 



Of 5 samples from Jan Mayen ( 2 5/ 6 i a. m. — 5 a. m.) 4 contained f<j? (21 specimens), 5 (V) (34 

 specimens) and 3 stage (IV) (6 specimens only); of 8 day samples 5 (taken 6 a. m. to 11 p. m.) did 

 not contain any specimens, but 3 (12 a. m. — 3 p. m.) contained together 9 f£. 



Date. 





0. Exp. 1900 

 at Jan Mayen. 



VI 



V 



IV 



111 



II 



I 



Number of 

 specimens 

 examined. 



2 5/6 12-30 night 



Horizontal net. 



At the Surface 



87 % 



i-3 % 











100 



2 5/ 6 



Closing net. 



50—60 fathoms 



10 



17 



1 











*8/ 6 



? 





20 



2 



3 



4 



8 







V; I P- m- 



Closing net. 



25 —10 

 50 —25 

 100—50 



10 % 

 1 



1 



40 % 

 3 



4 



21 % 



29 % 







60 



From the 28 /s 10 p. m.— 1 / 7 1900 the East Greenland Exp. has near Jan Mayen collected c. 40 

 samples (F. 90 — 135); 27 day samples (6 a. m.— 7 p. m.) were taken, of which only F. 125 ( r / 7 1912 

 mid-day 7i°3i N. 7°43 E. W.) contained a single f$; of 13 night samples the 4 following contained 

 C. //., and the f$ most abundantly. 

















Number of 









0. Exp. 1900. 



VI 



V 



IV 



specimens 

 examined. 



z8 /6 10 p. m. 



Jan 



Mayen 



F. 90 



85 % 



15 % 





106 



11 p. m. 







- 9 1 



5 



4 



1 





12 p. m. 







- 9 2 



40 



4 







2 9J6 1 a. m. 







- 93 



3 



15 



6 





In the ocean tract crossed by the East Greenland Expedition from 2 / 7 1 a. m. to 9/ 7 12 p. m. 

 between 73 E. N. 4 E. W. and 74 E. N. n° E. W. 109 samples (F. 136—244) were taken, partly 

 along the ice-edge or among scattered ice. As is easily seen in the following table the adult females 

 are the most frequent; the species is rather scarce at the surface and there is not seen to be any 

 marked difference in its occurrence in different times of the day. 



0. Exp. 1900 2 -9/ 7 . 



Number of 



samples 



without 



C. h. 



Number of 



samples 



containing 



C. h. 



Number of 

 f9. 



Number of 

 stage V. 



Number of samples and / 5 a. m. 

 specimens taken I 8 p. m. 



-7 p. m. 



— 4 a. m. 



Summa 



43 

 40 



16 

 10 



54 

 12 



6 

 6 





83 



26 



66 



12 



That the species was well represented in the greater depth even at localities in which it was 

 scarce at the surface is shown by a few vertical hauls (cf. table p. 35). 



