Compare Cymbopleura rainierensis
Compare
Cymbopleura naviculiformis valves are smaller with a higher stria density and distinctly rostrate, to subcapitate, apices. Cymbopleura hauckii has a lower areola density and apices that are not protracted. Cymbopleura lapponica has narrower valves, 7.5-10 µm in width.
LM scalebar = 10 µm
Length Range
44-82 µm
44-82 µm
Width Range
13.2-16.4 µm
13.2-16.4 µm
Striae in 10 µm
8-11 at the valve center, 13-15 near the apices
8-11 at the valve center, 13-15 near the apices
Cymbopleura naviculiformis
Length Range
35-40 µm
35-40 µm
Width Range
9.1-11.4 µm
9.1-11.4 µm
Striae in 10 µm
10-16 at center valve, 15-19 at the ends
10-16 at center valve, 15-19 at the ends