— 44 — 



Melosira sulcata Ktz. 



Mavtcala aspera Eh. 



— bombus Eh. 



— — V. densestriata A. S. 



— ^ crabro Eh. 



— — V. limitanea A. S. 



— dalmatica Grun. 



— exemta A. S. 



— Kùtzingii Grun 



— liber W. Sm. 



— — V. bicuneata Grun. 



— multicostata Bréb. 



— muscseformis V. eonstrictaOrun. 



— Stnithii Bréb. 



— . — V. major Cl. 



— — V. perraagna Pant. 



— splendida Greg. 



IVitzschia incerta Grun. 



— insignis Grun. 



— — V. mediterranea Grun. 



— — V. nolabilis Grun. 



— macilenta Grun. 



— maxima Grun, 



Nitzscbia pandurifonnis Greg. 



— punctata W . Sm . 



~ — V. elongata Grun. 



— valida Cl. et Grun. 



Ortboneis fimbriata Grun. 



Pieurosigma décorum W. Sm. 

 — elongatum W. Sm. 



Pyjcidieula adriatica Ktz. 



Rboicosigma compactum Grun. 



Sarirella fastuosa Eh. 



— — V. opulenta Grun. 



— — v.suborbicularisGrun. 



— fluminensis Grun. 



Synedra baculus Greg. 



— cristallina Lyngh. 



— — V dalmatica Ktz. 



— formosa Hantz. 



— fulgens Ktz. 



— Hennedyana Greg. 



— tabulata Ktz. 



— undulata Greg. 



N° 81 WRANGEN-OHRISTIANIAFJORD (Norvège) 

 Plankton (Collection Gran) 



Ampbora ostrearia Bréb. -, 



Asterionella formosa Hass. 

 Anricula insecta Grun. 

 Biddulpbia mobiliensis Bail. 



Cbsetoceros affine Laud. 



— angulatum Schùtt. 



— cochlea Schûtt. 



— constrictam Gran. avec en- 



docysts. 



— contortum Schùtt. 



— curvisetum Cl. (avec endocysts). 



— didymuRi v. longicornis. 



— Groenlandicum Cl. 



Cbaeteceros mamillanum Laud. 



— radians Schûtt. (dissocié) 



— seiracanthum Schûtt. 



— socialis Laud. (dissocié). 



Dityliam Briyhtwellii West. 

 Guinardia flaccida H. P. 

 Licmopbora flabellata A g. 

 Jurgensii Ag. 

 Rbizosolenia inermis Cast. 



— styliformis Bright. 



8keletonema costatum Cl. 

 Strialella interrupta Heib. 



— unipunctata Ag. 



