Diatoms of North AmericaDiatoms of North America
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Compare Stauroneis sonyae

Kulikovskiy, Lange-Bert., Witkowski and Dorofeyuk 2010

Compare

Stauroneis circumborealis has a broader axial area that is 4-5 times wider than the raphe, rather than 3-4 times wider in S. sonyae. The valve apices of S. sonyae are narrower and more gradually protracted than those of S. circumborealis. Stauroneis heinii has a narrower axial area and stauros than S. sonyae and the valves are more lanceolate with wider apices. Stauroneis sonyae has several features in common with S. medioasiatica, but S. sonyae is larger and has broader valves and narrower apices..

LM scalebar = 10 µm
Stauroneis sonyae LM6 Stauroneis sonyae LM4 Stauroneis sonyae LM5 Stauroneis sonyae LM3 Stauroneis sonyae LM2 Stauroneis sonyae LM1
Length Range
118-177 µm
Width Range
26-37 µm
Striae in 10 µm
14-16

Stauroneis circumborealis

Lange-Bert. and Krammer 1999

Stauroneis circumborealis LM6 Stauroneis circumborealis LM5 Stauroneis circumborealis LM4 Stauroneis circumborealis LM3 Stauroneis circumborealis LM2 Stauroneis circumborealis LM1
Length Range
81-148 µm
Width Range
20-31 µm
Striae in 10 µm
14-16

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

Also compare to

Stauroneis medioasiatica

Metzeltin, Lange-Bert., and Soninkhishig