KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 32. N:0 3. 



D. gramilata Cl. — Under this naine I distinguish a very small form (Pl. IV, fig. 7) 

 reraarkable for its coarse structure. It seems to belong to the arctic neritic plankton. 



Surface : 



Date. 



Lat. N. 











Pl. 



Long. 



Tenip. 



Sal. Fq. 



1 



26 VII 



77° 53' 



5° 3' E. 



4,78 



34,57 



7* 



((C)) 



30 VII 



78° 12' 



0°17' W. 



4,59 



34,53 



+ 



(C) 



19 VIII 



80° 27' 



30°15' E. 



— 0,90 



33,03 



r 



Ng 



20 VIII 



80° 45' 



26° 40' E. 



0,13 



32,20 



v 



Ng 



21 VIII 



80° 31' 



18° 50' E. 



2,42 



33,93 



r 



Ng 



D. rotuiidata. In several gatherings were found specimens, which conld 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 Bekgh. 



Deep-sea haul: 27 VII. Lat. N. 79° 58'. Long-. E. 9° 35', 



400 — ra. Kai-e. 



Gonyaulax spinifera Clap. & Lachm. 



Haul: 5 IX. Lat. N. 71° 50'. Löna;. E. 19° 2'. — 25—0 m. Rare. 



Gymnaster peutasterias (Ehb.). 



Haul: 27 VIII. Lat. N. 79° 58'. Loiir. E. 9° 35'. 



400 — O in. Rare. 



Peridiniuiu depressum (Bail.). — 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. 





Fq. 



Pl. 



Date. 



Lat. N. 



Long. 



Temp. 



Sal. 



Fq. 



Pl. 



Sal. 



27 V 



28 V 



29 V 



30 V 

 SOV 



30 V 

 81 V 



31 V 



57° 50' 

 68° 14' 

 60° 13' 

 62° 41' 

 63° 13' 

 63° 52' 

 65° 19' 

 65° 47' 



6°E. 

 4° 40' E. 

 4°24'E. 



5°E. 

 5°15' E. 

 6° 5'E. 

 8° 20' E. 

 9°10'E. 



8,70 



8,8 



8,35 



7,47 



8,14 



8,00 



8,36 



9,01 



33,69 

 31,83 

 33,32 

 33,12 

 34,53 

 34,53 

 35,34 

 34,67 



c 



+ 



7" 



+ 

 + 

 + 

 + 

 + 



Tp Ns 

 Ss Tp 

 Ns Tp 

 Ns Tp 

 Tp Ns 

 Tp Ns 



Ns Tp 



1 VI 



2 VI 



2 vr 



2 IX 

 4 IX 

 4 IX 



6 IX 



66° 42' 

 68° 30' 

 68° 49' 

 75° 50' 

 73° 36' 

 72° 43' 

 70° 23' 



10'30'E. 

 13°10' E. 

 13° 50' E. 

 15°32' E. 

 18° 50' E. 

 18° 43' E. 

 20°32' E. 



8,53 

 7,55 

 7,70 

 5,52 

 7,06 

 8,80 

 9,37 



34,69 

 34,33 

 34,16 



35,01 

 35,03 

 35,01 

 34,41 



+ 



r 



+ 

 + 

 r 



+ 



T Tp Ns 

 NsC 

 CNs 

 ST 

 S [Ns) 

 Tp Ns 

 Tp Ns 



P. divergens Ehb. 



Surface : 



Date. 



Lat. N. 



Long. 



Temp. 



Sal. 



Fq. 



Pl. 



29 VIII 



4 IX 



5 IX 



77° 38' 

 72° 43' 

 71° 14' 



11° 40' E. 

 18° 43' E. 

 19°38' E. 



6 



8,8 



9,40 



34,89 

 35,01 

 34,92 



r 

 c 



+ 



ST 

 Tp Ns 

 TpNs 



