Gyrosigma
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Category
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ClassBacillariophyceae
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OrderNaviculales
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Family
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Type SpeciesGyrosigma hippocampus (Ehrenberg) Hassall
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ContributorSarah Spaulding, Mark Edlund - Jan 2009
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ReviewerSam Rushforth - Jun 2010
Displaying 4 of 4 species
Sorted from smallest to largest by maximum length
11 Additional Gyrosigma species
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Biodata Reference
Gyrosigma balticum
Biodata Reference
Gyrosigma exilis
Biodata Reference
Gyrosigma eximium
Biodata Reference
Gyrosigma fasciola
Biodata Reference
Gyrosigma macrum
Biodata Reference
Gyrosigma peisonis
Biodata Reference
Gyrosigma reimeri
Biodata Reference
Gyrosigma scalproides
Biodata Reference
Gyrosigma sciotoense
Biodata Reference
Gyrosigma strigilis
Biodata Reference
Gyrosigma wormleyi
Citations & Links
Citations
Links
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Index Nominum Algarum
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CAS
Cite This Page
Spaulding, S., Edlund, M. (2009). Gyrosigma. In Diatoms of North America. Retrieved November 17, 2024, from https://diatoms.org/genera/gyrosigma
Symmetric Biraphid
Gyrosigma
- Valve sigmoid
- Raphe sigmoid
- Striae in perpendicular and parallel rows
Valves are sigmoid. The axial area is narrow and also sigmoid, containing a sigmoid raphe. The striae are comprised of punctate areolae and form rows that are perpendicular and parallel to the apical and transapical axes. The central area is round to elliptic. External proximal raphe ends are deflected in opposite directions from one...