Compare Cymbella fontinalis
Compare
Cymbella compacta and Cymbella lange-bertalotii have filiform proximal raphe ends, parallel striae or slightly radiate near the apices, and small areolae-like stigmata located at the end median ventral striae. Cymbella neocistula, C. neocistula var. islandica, C. blinnii and other species in the Cymbella neocistula complex have more dorsiventral valves and concave ventral margins with a tumid middle.
LM scalebar = 10 µm
Length Range
38-98 µm
38-98 µm
Width Range
11-16 µm
11-16 µm
Striae in 10 µm
8-13
8-13
Cymbella neocistula
Length Range
32-85 µm
32-85 µm
Width Range
11-22 µm
11-22 µm
Striae in 10 µm
7-10 at valve center, 10-13 near ends
7-10 at valve center, 10-13 near ends
Cymbella neocistula var. islandica
Length Range
44-109 µm
44-109 µm
Width Range
13.5-26.0 µm
13.5-26.0 µm
Striae in 10 µm
8-11
8-11
Cymbella blinnii
Length Range
22.4-54.4 µm
22.4-54.4 µm
Width Range
7.6-11.4 µm
7.6-11.4 µm
Striae in 10 µm
10-14 at the valve center, 14-15 near the apices
10-14 at the valve center, 14-15 near the apices