Compare Eunotia richbuttensis
Species within the Eunotia praerupta - Eunotia bidens group also possess slight dorsal undulations.
Eunotia inflata has a rounded dorsal margin.
Eunotia superbidens has dorsally recurved ends.
Eunotia richbuttensis valves are more narrow and consistently possess one apical rimoportula.
LM scalebar = 10 µm
Length Range
20-59 µm
20-59 µm
Width Range
7.3-9.9 µm
7.3-9.9 µm
Striae in 10 µm
10-14 at the center of the valve, 12-16 at the ends
10-14 at the center of the valve, 12-16 at the ends
Length Range
46.7-60.0 µm
46.7-60.0 µm
Width Range
at the valve center: 8.5-10.5 µm
at the valve center: 8.5-10.5 µm
Striae in 10 µm
9-12 in the valve center, 12-15 at the ends
9-12 in the valve center, 12-15 at the ends
Length Range
23.3-111.2 µm
23.3-111.2 µm
Width Range
at the valve center: 11.4-16.7 µm
at the valve center: 11.4-16.7 µm
Striae in 10 µm
7-11 in the valve center, 12-14 at the ends.
7-11 in the valve center, 12-14 at the ends.
Also compare to
Eunotia praerupta
BioData Reference
Krammer and Lange-Bertalot 2/3 Pl 148 Fig 1-3