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The broadly lanceolate valve form is similar to N. helmandensis, but distinguished by the elevated axial area with a central disruption and strongly convergent striae at the apices.

LM scalebar = 10 µm
Navicula elsoniana LM1 Navicula elsoniana LM5 Navicula elsoniana LM6 Navicula elsoniana LM4 Navicula elsoniana LM3 Navicula elsoniana LM2
Length Range
29.5–38.5 µm
Width Range
11–11.5 µm
Striae in 10 µm
11

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Navicula helmandensis

Foged