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Category
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Class
Bacillariophyta
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Sorted from smallest to largest by maximum length
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Index Nominum Algarum
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DiatomBase
Spaulding, S.
(2021).
Ninastrelnikovia.
In Diatoms of North America.
Retrieved June 08, 2023, from https://diatoms.org/genera/ninastrelnikovia
Symmetric Biraphid
Ninastrelnikovia
- Valves small, less than 25 µm
- Valves with strong central inflation
- Striae short, restricted to the valve margins
- Cells joined in band-like colonies
Valves are symmetric to the apical and transapical axis. Valves are small, typically less than 25 µm. The central margin is strongly inflated and the apices are broadly rounded. Striae are restricted to the valve margins. The raphe is filiform. The proximal raphe ends are relatively widely spaced. The distal raphe ends are straight or...