Compare Eunotia charliereimeri
Eunotia sarraceniae also has two rimoportulae per valve but is more narrow, more finely striated, and less curved. Other comparable taxa do not have two rimoportulae per valve. Eunotia bilunaris is narrower, less arched, and more finely striated. Eunotia incisa is generally smaller and has a nearly straight ventral margin. Eunotia pirla and E. carolina also have nearly straight ventral margins.
LM scalebar = 10 µm
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
