Compare Pinnularia lailaensis
Pinnularia decrescens and Pinnularia undula are larger, lack a central fascia, and lack a strongly curved external raphe slit.
LM scalebar = 10 µm
Length Range
61-79 µm
61-79 µm
Width Range
11.1-13.3 µm
11.1-13.3 µm
Striae in 10 µm
10-11
10-11
Length Range
80-93 µm
80-93 µm
Width Range
14-17 µm
14-17 µm
Striae in 10 µm
9-11
9-11
Length Range
63-87 µm
63-87 µm
Width Range
15-17 µm
15-17 µm
Striae in 10 µm
9-10
9-10
