Compare

Stauroneis americana has larger valves with lower stria and areola densities. Stauroneis finlandia and Stauroneis kishinena have strongly curved proximal raphe ends. Stauroneis catharinae has narrower valves and higher stria and areola densities.

LM scalebar = 10 µm
Stauroneis thompsonii LM6 Stauroneis thompsonii LM5 Stauroneis thompsonii LM4 Stauroneis thompsonii LM3 Stauroneis thompsonii LM2 Stauroneis thompsonii LM1
Length Range
81-124 µm
Width Range
16.3-23.5 µm
Striae in 10 µm
15-18

Stauroneis americana

Heiden in Schmidt et al. 1903

Stauroneis americana LM6 Stauroneis americana LM5 Stauroneis americana LM4 Stauroneis americana LM3 Stauroneis americana LM2 Stauroneis americana LM1
Length Range
136-214 µm
Width Range
32-46 µm
Striae in 10 µm
11-14

Stauroneis finlandia

L.L.Bahls 2010

Stauroneis finlandia LM2 Stauroneis finlandia LM1 Stauroneis finlandia LM5 Stauroneis finlandia LM4 Stauroneis finlandia LM3 Stauroneis finlandia LM7 Stauroneis finlandia LM6
Length Range
109-221 µm
Width Range
24-34 µm
Striae in 10 µm
13-15

Stauroneis kishinena

L.L.Bahls 2010

Stauroneis kishinena LM6 Stauroneis kishinena LM7 Stauroneis kishinena LM2 Stauroneis kishinena LM1 Stauroneis kishinena LM5 Stauroneis kishinena LM4 Stauroneis kishinena LM3
Length Range
122-182 µm
Width Range
26-33 µm
Striae in 10 µm
11-12

Also compare to

Stauroneis catharinae

Van de Vijver and Lange-Bert. 2004