KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 32. n:o 3. 39 
D. granulata Cr. — Under this name I distinguish a very small form (PI. IV, fig. 7) 
remarkable for its coarse structure. It seems to belong to the arctic neritic plankton. 
Surface: 
Date. | Lat. N. | Long. | 'lemp. Sal. Fq. Pl. 
26 VIE | 77°53'| 5°3'R. | 478] 34,57 | > ((€)) 
30 VIL | 78712 |o°17’w.| 4,59 | 34,53 | + (¢) 
19 vitt | 80°27’ | 30°15'E.| —0,90 | 32,03 | r Ng 
20 vit | 80°45’ |26°40'E| 0,13 | 82,20 | > Ng 
21 vit] 803i’ |1s°s0"w| 242 | 33,93 |» Ny 
D. rotundata. In several gatherings were found specimens, which could be consi- 
dered as D. rotundata, but as I believe that several different forms have been con- 
founded under this name, I leave them out. 
Diplopsalis lenticula Brreu. 
Deep-sea haul: 27 VII. Lat. N. 79°58’. Long. BE. 9° 35’. — 400—0 m. Rare. 
Gonyaulax spinifera Crap. & Lacum. 
Haul: 5 IX. Lat. N. 71°50’. Long. E. 19° 2’. — 25—o m. Rare. 
Gymnaster pentasterias (Exp.). 
Haul: 27 VIII. Lat. N. 79°58’. Long. E. 9° 35’. — 400—0 in. Rare. 
Peridinium depressum (BarL.). — This form ought to be considered as a distinct 
species and not as a mere variety of P. divergens. The latter belongs to the tropical 
and temperate Atlantic (desmo-, styli- and triposplankton), the former to the northern 
and western Atlantic (tricho-, tripos- and northern neritic plankton). 
Surface: 
Date. | Lat. N.| Long. Temp. Sal. Fq. Pi. Date. | Lat. N. | Long. Temp. Sal. Fq. Pl 
27 V 57°50’ | 6° E. 8,70 83,69 c Tp Ns 1 VI 66° 42’ | 10'30'E.| 8,538 34,69 ce | T'Tp Ns 
28 V 58°14’ | 4°40'E.| 88 31,83 + Ns Tp 2 VI 68° 30' | 13°10’ EB.) 7,55 34,33 + Ns C 
29 Vv 60°13’ | 4°24' EB.) 8,35 53,32 r Ns Tp 2 VI 68° 49’ | 13°50’ E.| 7,70 34,16 r C Ns 
80 V 62°41’ | BE. TA7 33,12 + Ns Tp 2 IX 75° 50’ | 15°82’ E., 5,52 35,01 + ST 
30 V 63°13’ | 5°15’ E.| 8,14 34,53 + Tp Ns 4 IX 73° 36’ | 18°50’ E.| 7,06 35,03 + S (Ns) 
30 V 63° 52’ | 6° 5'E.) 8,00 34,53 + Tp Ns 4 IX 72° 43' | 18°43’ E.) 8,80 85,01 r Tp Ns 
31V 65°19’ | 8°20'E.| 8,35 35,34 + _ 6 IX 70° 23’ | 20°32’ E.| 9,37 34,41 + Tp Ns 
31 V 65°47’ | 910'E.| 9,01 34,67 + Ns Tp 
P. divergens Exp. 
Surface: 
Date. | Lat. N.| Long. Temp. Sal. Fq. Pl. 
29 VIII) 77°38’ |11°40'E) 6 34,89 ° ST 
4 1X 72° 43’ | 18°43’ E.| 8,8 35,01 c Tp Ns 
5 IX 71°14’ | 19°38’ EB! 9,40 84,92 + Tp Ns | 
