Table I 



Dressée par M. Hjalmar Broch 



PHYTOPLANKTÔM 



'ONf 



w 















St. 6 



St 



7 



St. 8 



St. U 



St. 12 



St. 13 



St. 



14 St. 16 



p 

 o 



ESPÈCES 



10 







50 







50 



50 



10 . . 

 met. met. 1 1 







22 



'q 





t t 



t 



t 



t 



t 



t 



1 



t t 



ê; 





10 18 



30 



60 



15 



150 



20 75 



20 



20 10 5C 





Diatomées 



















m 



1 



Amphiprora hyperborea Grun 



















■ -i 



2 



Bacillaria paradoxa Gmel. 















r 

















3 



Bacteriosira fragilis Gran . 















r 

















4 



Biddulphia arctica Brightw 















rr 

















5 



Chaetoceras ailaniicum Cleve 















rr 





r 



)' 



r .. + r 





» 



+ . 



6 



Chaetoceras boréale Bail 



















r 



rr 



r 





)' )■ 1 



7 



Chaetoceras consortum Schûtt 















rr 

















8 



Chaetoceras convolutmn Castr. 

















rr 















9 



Chaetoceras criophilmn Castr. 





























rr 



10 



Chaetoceras decipiens Cleve 













+ 



+ 



+ 



- 



f 



r r c + 





-\- \ c c 



11 



Chaetoceras diadema Ehr. . 













rr 





r 















12 



Chaetoceras furcellatum Bail . 











+ + 



c 



r 









c + c .. 







c 



13 



Chaetoceras scolopendra Cleve. 































14 



Chaetoceras sociale Lauder. 































15 



Chaetoceras ter es Cleve. 













rr 



















16 



Chaetoceras wighami Brightw . 































17 



Cûscinodiscus subbuUens Jôrgensen 































18 



Detonula confervacea Cleve 































19 



Eucampia groeiilandica Cleve . 































20 



Fragilaria islandica Grun. 































21 



Fragilaria oceanica Cleve . 































22 



Melosira hyperborea Grun . 































23 



Navicula granii Jôrgensen. . 































24 



Navicula pelagica Cleve . 































25 



Navicula septentrioiialis Grun. 































26 



Navicula vanhoffeni Gran . 































27 



Nitszchia delicatissima Cleve . 































28 



Nitszchia frigida Grun. 































29 



Pleurosigma delicatulum W. Sm. . 































30 



Rhizosolenia alata Brightw. . 



























' 



r r 



31 



Rhizosolenia hebetata (Bail) /. semisp 



na 



(H 



ensen) 







r 



r 



r 







c 





+ \ + -\ 



32 



Rhizosolenia obtusa Hensen . 































33 



Rhizosolenia styliformis Brightw . 

























+ 







34 



Thalassiosira bioculala Grun . 































35 



Thalassiosira gravida Cleve . 











r r 



+ 



r 



r 





'r 



.. r + .. 





+ 1 r . 



36 



Thalassiosira Jiyalina Grun . 













r 



















37 



Thalassiosira nordenskjoldi Cleve 















+ 



r 







.. r + .. 



rr 



' 



r ... 



38 



Thalassiolhrix longissima Cleve et Grun 























' 



y .. . 





PÉRIDINIENS 





















39 



Ceratium arcticmn Ehrbg 







rr 



r 





r 







'' 



40 



Ceratiwn fusus (Ehrlig) Duj 















,y 













41 



Ceratium longipes Bail 

















rr 











42 



Goniodoma ostenfeldi Paulsen 



























43 



Peridinium islandicum Paulsen . . . 



r 

























44 



Peridinium ovaium Pouchet 



























45 



Peridinium pallidum Ostenfeld 



rr 

























46 



Peridinium roseum Paulsen 



r r 



rri} 



) ■■ 



















47 



Peridinium subinermis Paulsen 



rr 























Flagellâtes 





















48 



Dinobryon balticum (Schiitt) 













rr 





J 



r . . . 



49 



Phoeocystis poucheti (Hariot) 



c c 



c c 



c 



^ 



ce 











r + - 





J 



50 



SiLICOFLAGELLATES 



Distephauus spéculum (Ehrg) /. type 



















1 



















■ 



51 



Distephanus spéculum (Ehrg) /. septenaria Ehrg . 

























" ■ 





N° de l'engin .... 













1 1 





1 



1 



2 





~ 



3 3 2 



2 



2 





2 ■ 



(i) Frustules vides. 

 (2) Avec spores. 



I 



