Compare Karayevia amoena
Compare
Karayevia amoena differs from K. nitidiformis by smaller and more linear valves and by wider axial area on the rapheless valve. Note that, to date, K. nitidiformis has been confirmed from a single high elevation lake in Wyoming.
LM scalebar = 10 µm
Length Range
5.9-13.0 µm
5.9-13.0 µm
Width Range
3.2-4.9 µm
3.2-4.9 µm
Striae in 10 µm
22-26 on raphevalve, 18-20 on rapheless valve
22-26 on raphevalve, 18-20 on rapheless valve
Karayevia nitidiformis
Length Range
13.0-14.7 µm
13.0-14.7 µm
Width Range
4.2-4.3 µm
4.2-4.3 µm
Striae in 10 µm
19 on raphe valve, 19-21 on rapheless valve
19 on raphe valve, 19-21 on rapheless valve