Compare Cymbopleura anglica
Compare
Cymbopleura amphicephala and C. naviculiformis have smaller valves and striae with higher areola density. Cymbopleura amphicephala also has a filiform raphe, but the central area is smaller. Valves of C. naviculiformis are more narrow and more lanceolate.
LM scalebar = 10 µm
Length Range
39-52 µm
39-52 µm
Width Range
13.0-18.2 µm
13.0-18.2 µm
Striae in 10 µm
10-12 on the dorsal side in the valve center, slightly higher density on ventral side and near apices
10-12 on the dorsal side in the valve center, slightly higher density on ventral side and near apices
Cymbopleura amphicephala
Length Range
19.8-31.8 µm
19.8-31.8 µm
Width Range
6.4-8.7 µm
6.4-8.7 µm
Striae in 10 µm
12-16 at center valve, up to 18 at the ends
12-16 at center valve, up to 18 at the ends
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