Cymbopleura amphicephala has more elliptic valves, with capitate apices that are deflected ventrally. Cymbopleura similiformis has more linear valves, with distinct shoulders and capitate apices.
LM scalebar = 10 µm
Length Range
19.6-43.5 µm
Width Range
7.5-9.0 µm
Striae in 10 µm
12-14 in the valve center, up to 16 near the apices