Diatoms of North AmericaDiatoms of North America
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Compare Stauroneis siberica

(Grunow) Lange-Bert. and Krammer in Lange-Bert. and Metzeltin 1996

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Stauroneis bryocola has very fine and irregularly spaced areolae, but the valves are narrow, lanceolate and the apices are more gradually attenuated. Stauroneis anceps, with which S. siberica was previously associated as a variety, has coarser and more widely spaced striae and coarser, more evenly spaced areolae.

LM scalebar = 10 µm
Stauroneis siberica LM7 Stauroneis siberica LM6 Stauroneis siberica LM5 Stauroneis siberica LM4 Stauroneis siberica LM3 Stauroneis siberica LM2 Stauroneis siberica LM1
Length Range
54-68 µm
Width Range
12-16 µm
Striae in 10 µm
26 (center) - 32 (ends)

Stauroneis bryocola

Van de Vijver and Lange-Bert. 2004

Stauroneis bryocola LM5 Stauroneis bryocola LM4 Stauroneis bryocola LM3 Stauroneis bryocola LM2 Stauroneis bryocola LM1
Length Range
41-58 µm
Width Range
8.3-9.8 µm
Striae in 10 µm
27-30

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