Compare Stauroneis smithii var. incisa
Stauroneis smithii has a lower stria density than S. smithii var. incisa. Stauroneis separanda is smaller in size and has a distinct triundulate outline. Both S. ignorata and S. ignorata var. rupestris have axial areas that widen near the center of the valve, creating a circular or rhomboid central area.
LM scalebar = 10 µm
Length Range
19-36.8 µm
19-36.8 µm
Width Range
4.4-5.8 µm
4.4-5.8 µm
Striae in 10 µm
32-36
32-36
Length Range
18-28 µm
18-28 µm
Width Range
5.8-7.7 µm
5.8-7.7 µm
Striae in 10 µm
25-30
25-30
Length Range
13.9-15.3 µm
13.9-15.3 µm
Width Range
3.8-4.8 µm
3.8-4.8 µm
Striae in 10 µm
30
30
