Cymbopleura incertiformis has barely dorsiventral linear-elliptic-lanceolate valves with slightly protracted apices. Cymbopleura metzeltinii has barely dorsiventral rhomboid-lanceolate valves and a wider axial area. Cymbopleura austriaca has larger valves with bluntly rounded apices.

LM scalebar = 10 µm
Length Range
31-58 µm
Width Range
7.3-10.2 µm
Striae in 10 µm
15-16 at the valve center, 18-20 near the apices
Cymboincerta2
Cymboincerta3
Cymboincerta5
Cymboincerta6
Cymboincerta7
Cymboincerta2 Cymboincerta3 Cymboincerta5 Cymboincerta6 Cymboincerta7

Cymbopleura austriaca

(Grunow) Krammer 2003

Length Range
54-107 µm
Width Range
14.2-19.6 µm
Striae in 10 µm
center: 9-10 (dorsal), 11-12 (ventral); 13-15 ends
Cymbopleura anglica LM1 Cymbopleura anglica LM2 Cymbopleura anglica LM3 Cymbopleura anglica LM4 Cymbopleura anglica LM5 Cymbopleura anglica LM6 Cymbopleura anglica LM7
Length Range
30-61 µm
Width Range
7.6-10.3 µm
Striae in 10 µm
15-17 at the valve center, 18-21 at the ends
Cymbopleura metzeltinii LM3 Cymbopleura metzeltinii LM4 Cymbopleura metzeltinii LM5 Cymbopleura metzeltinii LM1 Cymbopleura metzeltinii LM2

Also compare to

Cymbopleura incertiformis

Krammer 2003