Compare Eunotia nymanniana
Compare
Smaller specimens of E. nymanniana may appear similar to larger specimens of E. exigua and E. tenella, several specimens may need to be observed for identification. Note that the upper size for E. nymanniana is greater. The dorsal and ventral margins of E. nymanniana are similar in shape and equally spaced. In contrast, the dorsal margin of E. exigua slopes, forming a 'shoulder' toward the apices. Eunotia nymanniana valves are more curved than those of E. tenella and E. neocompacta. Eunotia nymanniana valves are not as strongly arched and the distal raphe end does not curve as far on to the valve face as in E. elegans.
LM scalebar = 10 µm
Length Range
14.5-47.5 µm
14.5-47.5 µm
Width Range
2.2-3.7 µm
2.2-3.7 µm
Striae in 10 µm
18-22 in the center valve, 20-24 ends
18-22 in the center valve, 20-24 ends
Eunotia exigua
Length Range
7.5-22 µm
7.5-22 µm
Width Range
1.8-3.2 µm
1.8-3.2 µm
Striae in 10 µm
16-24 in the center, 20-24 at the ends
16-24 in the center, 20-24 at the ends