Compare Cymbella excisiformis
Compare
Cymbella affinis, C. affiniformis and C. parva have wider valves and less distinct areolae.
LM scalebar = 10 µm
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
Cymbella affinis
Length Range
19-36 µm
19-36 µm
Width Range
6.9-9.0 µm
6.9-9.0 µm
Striae in 10 µm
9-12 in the center valve, 13-14 at the ends
9-12 in the center valve, 13-14 at the ends
Cymbella affiniformis
Length Range
22.9-33.0 µm
22.9-33.0 µm
Width Range
7.2-9.2 µm
7.2-9.2 µm
Striae in 10 µm
10-12 dorsal, 11-13 ventral near valve center
10-12 dorsal, 11-13 ventral near valve center
Cymbella parva
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