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genus.
while, on the other hånd, in the other samples it was not found at all or only very sparsely.
At the last-mentioned station, for instance, no specimen was found in the samples from 28
to 20 m. and 10—0 ni., only a few individuals were caught in the sample from 28—0 nu; in
the sample from the surface, on the other hand, a very great manv individuals (cc) were found.
Does planktonic copulation occur in other species of this genus besides Ph. (Pli.) globosa’! Other species of this
No investigations in this direction have as yet been carried out, but it seems rather
probable that this question is to be answered in the affirmative. This assumption is supported
partly by the faet that a number of other species of this genus have been found in the plankton,
partly by the faet that some of the other species of this genus are characterized by the
circum-stance that the females with eggs in the brood chamber have the long natatory bristles of the
second antenna broken in the same way as in Ph. (Ph.) globosa.
The folio wing species have been caught in the plankton: (No information is to be found
as to whether females of these species have been found together with the males,)
Ph. ( Ph.) Lilljeborgi :
The following finds of this species are given in the plankton tables published by the
„Conseil permanent“:*
1903:
May: N. 2, lat. 61u 17’ N., long. 3° 22’ E.; deptli to the bottom, 380 m.
22. V., 10 11 p. m. — 12 11 p. m.
0 m. c.
100 m. — 0 ,, c.
June: N. 24, lat. 67° 11’ N., long. 10° 26’ E. ; depth to the bottom, 223 m.
1. VI., 10 11 15 p. m. — li11 30 p. m.
0 nu +
25 ni. — 0 ,, —
100 „ — 0 „
August: N. 2, lat. 61° 22’ N., long. 3° 08’ E. ; depth to the bottom, 380 m.
9. VIII., 6 11 10 p. m.
0 m. —
25 m. — 0 j) +
50 „ — 30 r.
200 „ — 100 55 —
1910:
At Anholt, lat. 56° 46’ N., long. Il" 51’ E. (There is no information as to depth, etc.)
May: 1. V. rr.
July : 1. VII. rr.
August: 15. VIII. rr.
November: 15. XI. rr.
* This species is also stated lo have been found al the station Se. 8 of I lie „Co n se i I p o r m a n e n I". lat.
GI" so’ N,, long, 3° 03’ K.. at a depth of 375 in., 28. VIII. 1907. This statement, hi>we\er, elearly refers lo a bottom find.
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