DIATOMliES D'EAU DOUCE 



ESPECES D'EAU SALES 



Cocconeis costata Grr^ r . 



Coscinodiscus antarcticus Griin. 



Fragilaria calijornirn Grim. var. uninn lim n. var. 



.\ui'i<'iilii (ilin-rin var. I criii/iliiln (la- 1. 

 Thaliixsinni-nui ylidn n. sp. 



RECOLTE N 578. Neige rouge. A la surface de laneige, entre 10 et 20 metres d'altitude. 

 He Petermann ; mars 1909. 



Raros Diatomees tres variees, en majemv purlir tlYau salee. 



Achniuithepyhi fininii n. sp. 

 Achmintlifs aiilnrrtica n. sp. 

 Cymbella lanceulata Kircli. 



iice/m Kirch. 



turida Kt/.. 



Actinfici/clits polygon us Cast. 

 Amphora Proteus Greg. 

 Cocconeis costata Givjr. 



Gautierii V. Heurck. 



Imperairix A. Sch. 

 Coscinodiscus antarcticus Grun. 

 granulosus Grun. 

 <'//<-liitrlln sii-iniii Grun. var. nntli 



Gomphonema Kamtschaticum Grun. var. antarctica . 

 Hantzschia amphioxys Gr. var. brasiliana G. / mumr. 

 Navicula borealis Kt/.. 



niulirn/isix V. Hi'iii'c-k var. /n/iilnln n. var. 

 .\itzschiri Friiin-n/flilii Grim. var. tirttiirctica n. var. 



D'EAU SALEE 



i Grun. 



ciiUjornica Grun. var. antarctica n. var. 

 Gomphonema pachycladum. Breb. 

 Miluxiru Unimii (Ili'Vi 1 . 

 Navicula (directa var.) criophila C.ast. 



jejunoidrs V. Heurck var. curfa n. var 

 Podosira Montagnei Ktz. 

 Thalassionema gelida n. sp. 

 Trachyneis Aspera Cli 



^ GEN ER ALE 

 DBS DIATOMEES DBS NEIGES 



Achnanthepyla Gainii n. sp. 

 Achnanllies antarctica n. sp. 

 t'//rli>tflla cointa Ktz. var. 

 Cymbella lanceolnta Kirch. 

 anceps Kirch. 

 u-'ida Ktz. 

 Eunotia triodon Eh. 

 Gomphoncnxi Kamtschaticum Grun. var. antarctica, 



n. var. 

 Hantzschia amphioxys Grun. var. brasiliana Gr. 



/* minor. 



Melosira crenulata Ktz. 

 bisiilcuta Ijai;. 



bon'alis Ktz. 

 macra Grnn. 

 minima Grun. 

 iitoliirix Grim. 

 mutica Ktz. / a sporangialis? 



var. cymbelloides n. var. 

 var. truncata n. var. 

 var. ventricosa Cleve. 



niuticopsis V. Heurck var. capilata n. var. 

 nivontnt n. s]>. 

 viridis Ktz. 

 Nitzschia Frauenfeldii Grun. var. uniurciirn n. var. 



E i/ji'i/iti"ii i.'i 



. PER\GALLO. 



