Compare Cymbella cosleyi
Cymbella excisiformis has one isolated stigma and subrostrate apices. Cymbella cleve-eulerae and C. subarctica have strongly concave ventral margins.
LM scalebar = 10 µm
Length Range
20-31 µm
20-31 µm
Width Range
5.5-7.1 µm
5.5-7.1 µm
Striae in 10 µm
10-12 at the valve center, 14-16 near the apices
10-12 at the valve center, 14-16 near the apices
Length Range
24-34 µm
24-34 µm
Width Range
6.1-7.1 µm
6.1-7.1 µm
Striae in 10 µm
9-11 in the center valve, 12-16 at the ends
9-11 in the center valve, 12-16 at the ends