Arcocellulus cornucervis Hasle, von Stosch et Syvertsen, 1983

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Arcocellulus cornucervis

Valves (arrow=ocellulus, arrowheads=poroids) (SEM)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Arcocellulus cornucervis
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
Valves (arrow=ocellulus, arrowheads=poroids) (SEM)
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Morphology
Often with two pili on the concave valve, convex valve with a central tubular process, with ocelluli. In living cells the pili are not crossed. Best studied in TEM
Other remarks

Distribution: Arctic and temperate waters of the northern hemisphere, New Zealand
Life form
Solitary
Size
Apical axis 1.2-13 µm, transapical axis 0.7-1.5 µm, pervalvar axis 1.5-3 µm
Literature
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.
Hasle, G., von Stosch, H.A. & Syvertsen. E. 1983. Cymatosiraceae, a new diatom family. Bacillaria., 6: 9-156.