Compare Navicula rhynchotella
Compare
Navicula rhynchocephala has narrower valves, striae with finer, more closely spaced areolae, and a preference for fresher waters. Navicula rhynchotella is similar to large lentic forms of Navicula trivialis with subcapitate poles, from which it may be distinguished by its much coarser areolae. Navicula expecta has more elongate valves with nearly parallel sides.
LM scalebar = 10 µm
Length Range
47-54 µm
47-54 µm
Width Range
12.1-13.5 µm
12.1-13.5 µm
Striae in 10 µm
10-12
10-12
Navicula rhynchocephala
Length Range
48-53 µm
48-53 µm
Width Range
9-10 µm
9-10 µm
Striae in 10 µm
8-9 at the center, 11-12 towards the apices
8-9 at the center, 11-12 towards the apices
