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Compare Navicula volcanica

Bahls and Potapova 2015

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Navicula volcanica is most similar to N. ludloviana. Valves of N. volcanica are rhombic with rounded apices, while valves of N. ludloviana are rhombic-lanceolate with subrostrate apices. Navicula aurora has protracted apices, a narrower axial area and convergent striae at the apices.

LM scalebar = 10 µm
Navicula ludloviana LM1 Navicula ludloviana LM2 Navicula ludloviana LM3 Navicula ludloviana LM4 Navicula ludloviana LM5
Length Range
100-176 µm
Width Range
30-37 µm
Striae in 10 µm
6 in the center of the valve, 8 at the ends

Navicula aurora

Sovereign 1958

Navicula aurora LM6 Navicula aurora LM1 Navicula aurora LM2 Navicula aurora LM3 Navicula aurora LM4 Navicula aurora LM5
Length Range
65-130 µm
Width Range
18-28 µm
Striae in 10 µm
7-9

Navicula ludloviana

A.Schmidt 1876

Navicula ludloviana LM4 Navicula ludloviana LM1 Navicula ludloviana LM6 Navicula ludloviana LM5 Navicula ludloviana LM2 Navicula ludloviana LM3 Navicula ludloviana LM7
Length Range
63-163 µm
Width Range
20-33 µm
Striae in 10 µm
6-9

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