Compare

Navicula tenelloides has subrostrate valve apices and denser striae. 

Navicula salinicola has a smaller central area and more elliptic valves. 

Navicula bjoernoeyaensis has subrostrate valve apices, a higher stria density, and a smaller central area. 

Navicula vekhovii has more elliptic valves and coarser striae.

Navicula vilaplanii has more lanceolate valves.

LM scalebar = 10 µm
Navicula pseudotenelloides LM1 Navicula pseudotenelloides LM5 Navicula pseudotenelloides LM4 Navicula pseudotenelloides LM3 Navicula pseudotenelloides LM2 Navicula pseudotenelloides LM7 Navicula pseudotenelloides LM6
Length Range
18-25 µm
Width Range
2.7-3.3 µm
Striae in 10 µm
13-14

Also compare to

Navicula salinicola

Hustedt

Navicula tenelloides

Hustedt

Navicula vekhovii

Lange-Bertalot and Genkal

Navicula bjoernoeyaensis

Metzeltin, Witkowski and Lange-Bertalot