Diatoms of North AmericaDiatoms of North America
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Compare Navicula seibigiana

Lange-Bert. 1993

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Navicula tenelloides has narrower valves and a higher stria density. Navicula libonensis has a larger central area and higher stria density.

LM scalebar = 10 µm
Navicula seibigiana LM6 Navicula seibigiana LM2 Navicula seibigiana LM5 Navicula seibigiana LM1 Navicula seibigiana LM4 Navicula seibigiana LM7 Navicula seibigiana LM3
Length Range
26-29 µm
Width Range
5.2-5.8 µm
Striae in 10 µm
11-12

Navicula libonensis

Schoeman 1969

Gs138229 Nalib3 Navicula libonensis LM3 Gs138229 Nalib1 Gs138229 Nalib2 Navicula libonensis LM2 Navicula libonensis LM1
Length Range
27-35 µm
Width Range
5.9-7.0 µm
Striae in 10 µm
12-13

Also compare to

Navicula tenelloides

Hust. 1937