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Click on images for larger format |
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Name derivation: |
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‘Four cycles’ (?) |
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| Tetracyclus Ralfs 1843; 17 of 25 species descriptions are
currently accepted taxonomically (Guiry and Guiry 2013).
Order Tabellariales; Family Tabellariaceae
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Morphology: |
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Zig-zag colonies of araphes are heavily silicified and contain transapical ribs visible in valve view. Some species are capitates, others capitate. |
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Similar genera: |
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Tabellaria also forms zig-zag colonies and is considered a close relative of Tetracyclus. |
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Habitat: |
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References: |
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Guiry, M.D. and Guiry, G.M. 2012. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 24 April 2013. |
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