Compare

Navicula cryptotenella and N. wygaschii have higher stria densities. In these two species and in N. mediocostata, areola density is also higher and areolae are difficult to resolve in LM .

LM scalebar = 10 µm
Navicula supleeorum LM7 Navicula supleeorum LM6 Navicula supleeorum LM5 Navicula supleeorum LM4 Navicula supleeorum LM3 Navicula supleeorum LM2 Navicula supleeorum LM1
Length Range
23-32 µm
Width Range
6.1-7.0 µm
Striae in 10 µm
12-14

Also compare to

Navicula mediocostata

E.Reichardt 1988

Navicula wygaschii

Lange-Bert. 2001

Navicula cryptotenella

Lange-Bert. 1985