Actinocyclus octonarius Ehrenberg, 1838

View image in original size

Actinocyclus octonarius

A&B = Two living cells; C&D = Valve (arrowhead=pseudonodulus, arrows=labiate processes). (A=BF, B-D=DIC)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Actinocyclus octonarius
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
A&B = Two living cells; C&D = Valve (arrowhead=pseudonodulus, arrows=labiate processes). (A=BF, B-D=DIC)
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Synonym names

  • Actinoptychus octonarius

Description

IDs in other systems
Tropic type
A
Other remarks
Several varities are described. Botten form which can be common in coastal plankton
Distribution: Worldwide
Life form
Solitary
Size
Diameter = 50-300 µm, var. tenellus 18-48 µm
Literature
Drebes, G. 1974. Marines Phytoplankton, Eine Auswahl der Helgoländer Planktonalgen (Diatomeen, Peridineen). Georg Thieme Verlag, Stuttgart. 186 pp.
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.
Hendey, N. I. 1964. An introductory account of the smaller algae of British coastal waters. Part 5: Bacillariophyceae (Diatoms). HSMO, London. 317 pp.

External links

Subordinate taxa

Illustration Taxon name
Actinocyclus octonarius var. crassus
Actinocyclus octonarius var. octonarius
Actinocyclus octonarius var. tenellus

Change History

  • 2013-05-13 10:32:44 Regina Hansen - Updated media metadata for Actinocyclus octonarius_3.jpg
  • 2013-05-13 10:31:25 Regina Hansen - Added media: Actinocyclus octonarius_3.jpg
  • 2012-09-14 10:41:00 Ann-Turi Skjevik - Updated media metadata for Actinocyclus octonarius_2.jpg
  • 2012-09-14 10:40:47 Ann-Turi Skjevik - Added media: Actinocyclus octonarius_2.jpg