Eunotia montuosa is most similar to E. subherkiniensis. Valves of E. montuosa are larger and broader than E. subherkiniensis (13-30 μm long, 4-8 μm wide) and have more acute dorsal undulations than E. subherkiniensis.
LM scalebar = 10 µm
Length Range
31-59 µm
Width Range
7-13 µm
Striae in 10 µm
7-9 in the center valve, 10-14 at the ends