Compare Eunotia sarraceniae
Eunotia charliereimeri also has two rimoportulae per valve but is broader, more coarsely striate, more curved, and with parallel margins in large valves. Other comparable taxa do not have two rimoportulae per valve. Eunotia bilunaris is narrower and more finely striated. Eunotia incisa is generally smaller and has a nearly straight ventral margin. Eunotia pirla and Eunotia carolina also have nearly straight ventral margins.
LM scalebar = 10 µm
Length Range
21.3-66.1 µm
21.3-66.1 µm
Width Range
3.9-5.9 µm
3.9-5.9 µm
Striae in 10 µm
18.5-22.5
18.5-22.5
Length Range
23.4-71.7 µm
23.4-71.7 µm
Width Range
4.9-6.7 µm
4.9-6.7 µm
Striae in 10 µm
16.7-20.8
16.7-20.8
Length Range
12-50 µm
12-50 µm
Width Range
2.8-5.0 µm
2.8-5.0 µm
Striae in 10 µm
16-21 in the center valve
16-21 in the center valve
Length Range
33–110 µm
33–110 µm
Width Range
3.1–4.7 µm
3.1–4.7 µm
Striae in 10 µm
11–16 at center of the valve, 15–19 near the apices
11–16 at center of the valve, 15–19 near the apices
