UfllUS. 



8tu(lii's iin iiiai'im; Ostracod.s 365 



while, on the other hand, 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 — m., only a few individuals were caught in the sample from 28 — m.; in 

 the sample from the surface, on the other hand, a very great many individuals (cc) were found. 



Does planktonic copulation occur in other species of this genus besides Ph. (Ph.) globom'i (■>ii'<"' ••*p<;t/t^ of thin 



No investigations in this direction have as yet been carried out, but it seems ratlier 

 probable that this question is to be answered in the affirmative. This assumption is supported 

 partly by the fact that a number of other species of this genus have been fomid in the plankton, 

 partly by the fact 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 following 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.) Lilljehorgi: 



The following finds of this species are given in the plankton tables published by the 

 ,,C o n s e i 1 permanent":* 



1903: 



May: N. 2, lat. 61" 17' N., long. 3" 22' E.; depth to the bottom, 380 m. 

 22. v., 10 li p. m. — 12 li p. ni. 

 m. c. 

 100 m. — ,, c. 



June: N. 24, lat. 67" 11' N., long. 10° 26' E.; depth to the bottom, 223 m. 

 1. VI., 10 li 15 p. m. — 11 li 30 p. m. 

 m. + 

 25 111. — „ — 

 ](Mi „ — „ — 



August: N. 2, lat. 61" 22' N., long. 3" 08' E.; tk-ptii to the bottom, 380 m. 

 !J. Vlll., 6 li 10 p. 111. 



m. — 

 25 m. — „ + 

 50 ,, — 30 „ r. 

 200 „ — 100 „ — 

 1910: 



At Anholt, lat. 56" 46' N., long. 11" 51' E. (There is no information as to deptli, etc.) 

 May: 1. \. rr. 

 July: 1. VII. rr. 

 August: 15. VIII. IT. 

 November: 15. XL rr. 



* This species is also staled to liave Ijecn ruiind at llu: station St. 8 of tlio „C o n s e i 1 p e r in a u e n t". ial. 

 61»30'N,,lorig. :)»03'E., at a depth of 37.5 m., 28. VIII. 1907. Tiiis statement. Iiowever, clearly refers lo a hoiUnw lind. 



