Compare

The nominate variety has more lanceolate, mostly larger valves with rounded, unprotracted apices.

LM scalebar = 10 µm
Cymbella Mexicana Kamtschatica1 Cymbella Mexicana Kamtschatica2 Cymbella Mexicana Kamtschatica3 Cymbella Mexicana Kamtschatica4 Cymbella Mexicana Kamtschatica5 Cymbella Mexicana Kamtschatica6 Cymbella Mexicana Kamtschatica7
Length Range
63-102 µm
Width Range
25.7-31.0 µm
Striae in 10 µm
6-9

Cymbella mexicana

(Ehrenb.) Cleve 1894

Cymbella mexicana LM4 Cymbella mexicana LM1 Cymbella mexicana LM6 Cymbella mexicana LM3 Cymbella mexicana LM5 Cymbella mexicana LM7 Cymbella mexicana LM2
Length Range
80-155 µm
Width Range
26-33 µm
Striae in 10 µm
6-8 in the central valve, 7-10 at the ends

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