Diatoms of North AmericaDiatoms of North America
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Compare Stauroneis pseudagrestis

Lange-Bert. and Werum 2004

Compare

Stauroneis agrestis is smaller with a higher stria density and straight proximal raphe ends. Stauroneis kriegeri is smaller and has subcapitate apices, a nearly rectangular stauros and straight proximal raphe ends. Stauroneis reichardtii is larger with a narrower stauros and straight proximal raphe ends.

LM scalebar = 10 µm
Stauroneis pseudagrestis LM7 Stauroneis pseudagrestis LM6 Stauroneis pseudagrestis LM5 Stauroneis pseudagrestis LM4 Stauroneis pseudagrestis LM3 Stauroneis pseudagrestis LM2 Stauroneis pseudagrestis LM1
Length Range
27-43 µm
Width Range
6.4-9.4 µm
Striae in 10 µm
23-26

Stauroneis agrestis

J.B.Petersen 1915

Stauroneis agrestis LM7 Stauroneis agrestis LM6 Stauroneis agrestis LM5 Stauroneis agrestis LM4 Stauroneis agrestis LM3 Stauroneis agrestis LM2 Stauroneis agrestis LM1
Length Range
23-27 µm
Width Range
4.5-5.5 µm
Striae in 10 µm
about 40

Stauroneis kriegeri

R.M.Patrick 1945

Stauroneis kriegeri LM6 Stauroneis kriegeri LM5 Stauroneis kriegeri LM4 Stauroneis kriegeri LM3 Stauroneis kriegeri LM2 Stauroneis kriegeri LM1
Length Range
19-25 µm
Width Range
4.1-5.5 µm
Striae in 10 µm
26-30

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