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Stauroneis anceps has rostrate, rather than capitate apices. The stauros of S. acidoclinatopsis is narrowly rectangular, compared to the bow tie shaped stauros of S. ancepsfallax. Stauroneis amphicephala has more linear valves, with rostrate to subcapitate apices. Valves of S. ancepsfallax are larger and more lanceolate than those of S. reichardtii. Stauroneis vandevijveri is smaller and has rostrate to subcapitate ends.

LM scalebar = 10 µm
Stauroneis ancepsfallax LM6 Stauroneis ancepsfallax LM5 Stauroneis ancepsfallax LM4 Stauroneis ancepsfallax LM3 Stauroneis ancepsfallax LM2 Stauroneis ancepsfallax LM1
Length Range
52-70 µm
Width Range
11.4-14.2 µm
Striae in 10 µm
17-23

Stauroneis anceps

Ehrenb. 1843

Stauroneis anceps LM7 Stauroneis anceps LM6 Stauroneis anceps LM5 Stauroneis anceps LM2 Stauroneis anceps LM4 Stauroneis anceps LM3 Stauroneis anceps LM1
Length Range
48-76 µm
Width Range
12-15 µm
Striae in 10 µm
19-21

Stauroneis amphicephala

Kütz. 1844

Stauroneis amphicephala LM5 Stauroneis amphicephala LM4 Stauroneis amphicephala LM3 Stauroneis amphicephala LM2 Stauroneis amphicephala LM1 Stauroneis amphicephala LM6
Length Range
55-82 µm
Width Range
11.0-16.8 µm
Striae in 10 µm
18-21

Stauroneis acidoclinatopsis

Van de Vijver and Lange-Bert. 2004

Stauroneis acidoclinatopsis LM5 Stauroneis acidoclinatopsis LM4 Stauroneis acidoclinatopsis LM3 Stauroneis acidoclinatopsis LM2 Stauroneis acidoclinatopsis LM1
Length Range
57-61 µm
Width Range
10-12 µm
Striae in 10 µm
23-25

Stauroneis reichardtii

Lange-Bert., Cavacini, Tagliaventi, and Alfinito 2003

Stauroneis reichardtii LM6 Stauroneis reichardtii LM4 Stauroneis reichardtii LM5 Stauroneis reichardtii LM3 Stauroneis reichardtii LM2 Stauroneis reichardtii LM1
Length Range
36-54 µm
Width Range
8.0-10.8 µm
Striae in 10 µm
20-26

Stauroneis vandevijveri

L.L.Bahls 2010

Stauroneis vandevijveri LM2 Stauroneis vandevijveri LM1 Stauroneis vandevijveri LM3 Stauroneis vandevijveri LM5 Stauroneis vandevijveri LM4
Length Range
48-73 µm
Width Range
9.5-12.5 µm
Striae in 10 µm
19-23