Compare

Cymbella neocistula typically has 3 or more stigmata. Cymbella parva and C. vulgata have smaller valves and higher stria density. Cymbella dorsenotata is larger with bluntly rounded apices and a 2-6 stigmata.

LM scalebar = 10 µm
Cymbella Cymbiformis 439301 1 Cymbella Cymbiformis 439301 2 Cymbella Cymbiformis 439301 3 Cymbella Cymbiformis 439301 4 Cymbella Cymbiformis 439301 5
Length Range
75.9-120.9 µm
Width Range
17.0-20.1 µm
Striae in 10 µm
6-9 at the valve center, up to 15 near the apices

Cymbella neocistula

Krammer 2002

Cymbella Neocistula  L 4 33 2 Cymbella Neocistula  L 4 33 1 Cymbella Neocistula  L 4 33 3 Cymbella Neocistula  L 4 33 4 Cymbella Neocistula  L 4 33 6 Cymbella Neocistula  L 4 33 5
Length Range
32-85 µm
Width Range
11-22 µm
Striae in 10 µm
7-10 at valve center, 10-13 near ends

Cymbella parva

(W.Sm.) Kirchn. in Cohn 1878

Cymbella parva LM1 Cymbella parva LM2 Cymbella parva LM3 Cymbella parva LM4 Cymbella parva LM6 Cymbella parva LM7 Cymbella parva LM8
Length Range
24.5-41.2 µm
Width Range
6.9-8.9 µm
Striae in 10 µm
10-12 at the valve center, up to 14 near the apices

Cymbella vulgata

Krammer 2002

Cymbella Vulgata1 Cymbella Vulgata2 Cymbella Vulgata3 Cymbella Vulgata4 Cymbella Vulgata5 Cymbella Vulgata6 Cymbella Vulgata7
Length Range
30.4-59.5 µm
Width Range
7.8-11.7 µm
Striae in 10 µm
9-11 at the valve center, up to 14 near the apices

Also compare to

Cymbella dorsenotata

Østrup 1910