Diatoms of North AmericaDiatoms of North America
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Compare Stauroneis kriegeri

R.M.Patrick 1945

Compare

Stauroneis agrestis has linear valves with capitate apices, more strongly radiate striae, higher stria density, and a wider stauros shaped like a bow tie. Stauroneis pseudagrestis is larger with a wider stauros and proximal raphe ends that are bent to the same side.

LM scalebar = 10 µm
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 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 pseudagrestis

Lange-Bert. and Werum 2004

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