Compare

Stauroneis kootenai may be distinguished from Stauroneis gracilior by the lack of hyaline areas adjacent to the stauros. It differs from Stauroneis pikuni by having more robust valves and a smaller size. Stauroneis bryocola has rostrate apices. Stauroneis neohyalina has linear-lanceolate valves, rostrate to subcapitate apices and much finer striae and areolae. Stauroneis subgracilior has smaller valves with very narrow rostrate-capitate apices and very fine striae and areolae. Stauroneis schroederi has very narrow rostrate to subcapitate apices.

LM scalebar = 10 µm
Stauroneis kootenai LM5 Stauroneis kootenai LM4 Stauroneis kootenai LM3 Stauroneis kootenai LM2 Stauroneis kootenai LM1
Length Range
34-52 µm
Width Range
8.1-10.3 µm
Striae in 10 µm
20-28

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 neohyalina

Lange-Bert. and Krammer 1996

Stauroneis neohyalina LM6 Stauroneis neohyalina LM5 Stauroneis neohyalina LM4 Stauroneis neohyalina LM3 Stauroneis neohyalina LM2 Stauroneis neohyalina LM1
Length Range
32-49 µm
Width Range
6.0-9.0 µm
Striae in 10 µm
32-40

Stauroneis pikuni

L.L.Bahls 2010

Stauroneis pikuni LM7 Stauroneis pikuni LM6 Stauroneis pikuni LM5 Stauroneis pikuni LM4 Stauroneis pikuni LM3 Stauroneis pikuni LM2 Stauroneis pikuni LM1
Length Range
53-64 µm
Width Range
9.0-12.0 µm
Striae in 10 µm
24-28

Stauroneis schroederi

Hust. in A.Schmidt 1913

Stauroneis schroederi LM6 Stauroneis schroederi LM5 Stauroneis schroederi LM4 Stauroneis schroederi LM3
Length Range
40-64 µm
Width Range
7.4-11.1 µm
Striae in 10 µm
24-28

Also compare to

Stauroneis gracilior

(Rabenh.) E.Reichardt

Stauroneis subgracilior

Lange-Bert., Cavacini, Tagliaventi, and Alfinito