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North Sea (Scottish portion)
twice during May* **
once ,, June
English Channel
never
Atlantic (Danish portion)
once during May
Atlantic (Norwegian portion)
never
Arctic Ocean (Russian portion)
never.
During this time the following numbers of stations were investigated:
February May Au just November
,,Danish Seas“ 48 57 40 61
Skager Rak, Swedish poition 48 76 75 62
North Sea, German 59 103 75 75
,, Dutch 45 45 36 45
„ „ Belgia n „ 48 53 64 66
,, Scottish 88 182 143 91
English Channel 157 170 144 140
Atlantic, Danish portion . — 51 46 —
,, Norwegian ,, 1-2 89 12 —
Arctic Ocean, Russian portion .... — 8 53 —
This species was thus caught during the month of February at five out of 505 stat.
3 3 3 3 3 3 3 May twenty **„ „ 834 „
33 33 3 3 3 3 August one „ „ 694 „
3? 33 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. Apsteix of a limited planktonical copulation
period; the finds made are too sporadic for this.
A decided argument against this writer’s view is the faet that the species was fourni
in plankton at five stations during the month of February. lt is beyond all doubt that in this
case there can be no question of „das Aufsteigen unreifer Exemplare infolge besonderer hydro-
* The statement with regard to February refers lo a benthoieal find. Cf. ahove,
** ln this number is included Ilte .lune find.
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