Compare Navicula subwalkeri
Navicula walkeri has rhombic-lanceolate valves with rounded, rather than protracted apices and a large, rounded central area. The longitudinal lines of N. walkeri are located closer to the valve margins. The striae of N. walkeri are straight, or nearly so.
LM scalebar = 10 µm
Length Range
94-165 µm
94-165 µm
Width Range
17-27 µm
17-27 µm
Striae in 10 µm
8-11
8-11
Length Range
114-154 µm
114-154 µm
Width Range
24-28 µm
24-28 µm
Striae in 10 µm
9-10
9-10
