Compare Pinnularia dariana
Compare
Pinnularia mesogongyla valves are more narrow and linear and the raphe is complex.
Pinnularia sibflexuosa is large and has broadly lanceolate valves and axial area. To date, it is known only from fossil material from Mexico.
Pinnularia fossilis is smaller in size and lacks of clear undulations of the valve margins. However, this taxon may be conspecific with P. dariana and requires further examination.
LM scalebar = 10 µm
Length Range
170-275 µm
170-275 µm
Width Range
35-47 µm
35-47 µm
Striae in 10 µm
5-7
5-7
Also compare to
Pinnularia mesogongyla
BioData Reference
Hustedt 1930 Fig 602