Sliuii(^s nil iiKirinr Osli'aiods 



;ui:5 



Nortli S(';i (8cotti.sli portion) 



twice during Max * 



once ,, June 

 English Clumiicl 



IlCVCf 



Atlantic (Danisli portion) 



once during May 

 Atlantic (Norwegian portion) 



never 

 Arctic Ocean (Russian portion) 

 never. 



During this time the following numbers of stations were nivestigated : 



Febniaiv 



Mav 



,, Danish Seas" 



Skager Rak, Swedish poition . 

 North Sea, German ,, 



,, ,, Dutch „ 



„ Belgian 



,, .. Scottish ,, 



English Channel 



Atlantic, Danish portion . . . 

 ,, Norwegian ,, . . . 



Arctic Ocean, Russian portion 



48 

 48 

 59 

 45 

 48 

 88 

 157 



57 



76 



103 



45 



53 



182 



170 



51 



8!) 



8 



This species was thus caught during the month of February at five out of 505 stat. 



„ May „ twenty**,, „ 834 „ 



,, August ,, one „ ,, 694 „ 



,, ,, ,. ,, November ,, none ,, .. 540 ,, 



As is shown by the extracts given above from the plankton tables we are concerned in 

 most cases with finds containing a very few individuals, only on a few occasions during May 

 and February are there more abundant finds. 



It seems to be shown quite clearly from these statements that these tables cannot be 

 considered as supporting the view put forward by C. Apstein of a limited planktonical (•oi)ulation 

 period; the finds made are too sporadic for this. 



A decided argument against this writer's view is the fact that the species was found 

 in plankton at five stations during the month of February. It is beyond all doubt that in this 

 case there can be no question of ,,das Aufsteigen unreifer Exemplare infolge besonderer hydro- 



• Tlio slali,Miii-iit wilh I'l't^ai-d In Frliniary ri^fcrs (o a bcrillurir.il liml. CI', alxivi', 

 *'■ In this iiiiMibri' i-< iiiclmlrd Ihc .liiiir liiiil. 



