Compare Pinnularia feremorosa
Compare
Pinnularia elegantoides differs by its swollen valve center and apices. P. guadalupensis has broader valves with wider a axial area. P. tenuistriata striae are parallel throughout entire valve. Varieties of P. subgibba with similar valve outlines have more rostrate/subcapitate/capitate apices and striae are radiate in the center. The granular axial area is unique to this species.
LM scalebar = 10 µm
Length Range
59-79 µm
59-79 µm
Width Range
8.0-8.7 µm
8.0-8.7 µm
Striae in 10 µm
11-12
11-12
Also compare to
Pinnularia subgibba
BioData Reference
Krammer 2000 Pl 64 Fig 1-3 9