Compare Cymbella parva
Compare
Cymbella vulgata is similar in shape and overlaps in size range, but differs in stria density (9-11 at the valve center, up to 14 near apices). Cymbella cymbiformis has larger valves, a lower stria density, and may possess two or more isolated stigmata. Cymbella excisiformis has more distinct areolae.
LM scalebar = 10 µm
Length Range
24.5-41.2 µm
24.5-41.2 µm
Width Range
6.9-8.9 µm
6.9-8.9 µm
Striae in 10 µm
10-12 at the valve center, up to 14 near the apices
10-12 at the valve center, up to 14 near the apices
Cymbella cymbiformis
Length Range
75.9-120.9 µm
75.9-120.9 µm
Width Range
17.0-20.1 µm
17.0-20.1 µm
Striae in 10 µm
6-9 at the valve center, up to 15 near the apices
6-9 at the valve center, up to 15 near the apices
Cymbella vulgata
Length Range
30.4-59.5 µm
30.4-59.5 µm
Width Range
7.8-11.7 µm
7.8-11.7 µm
Striae in 10 µm
9-11 at the valve center, up to 14 near the apices
9-11 at the valve center, up to 14 near the apices
Cymbella excisiformis
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