DIATOMEES 



79 



l'LANKTON 



Antarc- 

 tiques 



2 3 



Arctiques 



S 9 



Banquise, Glace fondue 



[0 



Arctiques 



11 12 13 14 15 16 17 18 



Sondages 

 récoltes littorales 



Antarctiques 



19 20 21 22 23 24 



Arctiques 



25 26 27 



Chaetoceros (suite) 



C. commutatum Cleve 

 G. contpressum Laud. . 

 C. corniivens Grun. 

 C. constrictum Grau . 

 C. contortum Schiitt. . 

 (,'. convolutum Cast. 

 C. coronatum Grau 

 (,'. criophilum Cast. 

 C. cruciatum Karst. 

 C. curvatum Cast. . 

 C. ciimsetum Cleve 

 C. danicum Cleve . 

 C. débile Cleve . . . 

 C. deciptens Cleve . 



» var. concreta 



C. denstim Cleve . 

 C. diadenia Eh. 

 C. dicliaeta Eh. (Janischianuni) 

 C. dicladia Cast. 

 ('.. didyrtmm Eh. 

 C. dispar Cleve . . . 

 (.'. distans Cleve 

 C. crigiiiini Cleve . 

 f.'. furca Cleve. . 

 C. furcellalwni Uail. . 



» var. mamillaris 



C. gastridium Eh. . 

 C. Granii Cleve . 

 C. groenlandicuni Cleve 

 (,'. hiemale Cleve 

 C. Ingolftanum Oest. . 



(.'. Karianwni Grun. 

 C. lacinioswm Schiitt. . 



C. Lorenzianum Grun. 



» var. parvula 



C. longicruris Cleve 



C. mitra Cleve . 



G. neglecluni Karst. 



C. Ostenfeldii Cleve 



C, paradoxum v. subsecunda 



C. pelagicum Cleve 



6'. pendulum Karst. 



C. pennatum Grun. 



C. iieiiiritniuni Btw. 



C. polugonum Schiitt. . 



C. pseudocriniluni Oest. 



(.'. ritiliriiluui Cast. 



C. ciiiYe Cleve . 



C. Scliimjierianum Karst 



C. Schuettii Cleve . . 



C. scolopendra Cleve . 



C. septentrionale Oest. 



(.'. simile Cleve . . . 



C. skeletmi Schûtt. 



C. sociale Laud. 



C. solitarium Cleve 



C. subtile Cleve 



C. teres Cleve . 



» /' a spinulosa . 



C. tetrachaela Eh. . 



f .'. /-»> tissimum Grau . 



C. i-nlaiix Schiitt. 



C. Wuiliamii Btw. . 



il /' a minuta 



C. Willex Grau . 



Bacteriastrum 



B. delicatulum Cleve 

 £. rarians Laud. 



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