Navicula transitans Cleve var. derasa Grunow f. delicatula Heimdal 1970

A = Cells on Chaetoceros diadema (A-D = BF, E = PC). All living cells.




Synonym(s):

Life-form: Solitary

Size: Apical axis = 32-49 µm, transapical axis =7-9 µm

Resting spore: -

Note: There are several similar taxa see Heimdal (1970)

Distinctive features: The size and the poorly developed intercostal membranes around the raphe.

Similar species:

Distribution: Coastal waters of Iceland and Norway, Gullmarsfjorden (common during the springbloom)

Literature:
Heimdal, B. R. 1970. Morphology and distribution of two Navicula species in Norwegian Coastal waters. Nytt Magasin for botanikk. 17: 65-75.


  Copyright © 1996-2006, Mats Kuylenstierna & Bengt Karlson All rights reserved.
Last modified on 15 September, 2006

Swedish Meteorological and Hydrological Institute

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Department of Marine Ecology, Göteborg University, Sweden

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