Cymbopleura inaequalis is generally larger, although the size ranges of the two species overlap. Smaller valves of C. inaequalis may be distinguished by having a lower areola density (< 20 in 10 µm).
LM scalebar = 10 µm
Length Range
46-87 µm
Width Range
17.0-20.9 µm
Striae in 10 µm
8-10 at the valve center, 12-14 near the apices