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Compare Stauroneis submarginalis

Bahls 2010

Compare

The distinct submarginal line, visible in LM, distinguishes Stauroneis submarginalis from S. heinii and S. supergracilis.

Stauroneis phoenicenteron and S. rex have straight proximal raphe ends and valve apices that are not protracted.

Stauroneis phoenicenteron var. brunii lacks a distinct submarginal line and has straight proximal raphe ends.

LM scalebar = 10 µm
Stauroneis submarginalis LM1 Stauroneis supergracilis LM2 Stauroneis supergracilis LM6 Stauroneis submarginalis LM3 Stauroneis submarginalis LM4 Stauroneis submarginalis LM5
Length Range
140-186 µm
Width Range
23-35 µm
Striae in 10 µm
15-17

Stauroneis heinii

Lange-Bert. and Krammer 1999

Stauroneis heinii LM7 Stauroneis heinii LM6 Stauroneis heinii LM5 Stauroneis heinii LM2 Stauroneis heinii LM1 Stauroneis heinii LM4
Length Range
116-191 µm
Width Range
22-36 µm
Striae in 10 µm
15-17

Stauroneis phoenicenteron

(Nitzsch) Ehrenb. 1843

Stauroneis phoenicenteron LM5 Stauroneis phoenicenteron LM4 Stauroneis phoenicenteron LM3 Stauroneis phoenicenteron LM2 Stauroneis phoenicenteron LM1
Length Range
129-199 µm
Width Range
26-35 µm
Striae in 10 µm
15-18

Stauroneis rex

Bahls 2010

Stauroneis rex LM6 Stauroneis rex LM2 Stauroneis rex LM5 Stauroneis rex LM1 Stauroneis rex LM3 Stauroneis rex LM7
Length Range
215-386 µm
Width Range
38-60 µm
Striae in 10 µm
12-14

Stauroneis supergracilis

Van de Vijver and Lange-Bert. 2004

Stauroneis supergracilis LM14 Stauroneis supergracilis LM13 Stauroneis supergracilis LM11 Stauroneis supergracilis LM10 Stauroneis supergracilis LM12 Stauroneis supergracilis LM1 Stauroneis supergracilis LM7
Length Range
124-213 µm
Width Range
21-33 µm
Striae in 10 µm
15-16

Also compare to

Stauroneis phoenicenteron var. brunii

(Perag. and Hérib.) Voigt