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The median rib of A. lindheimeri is irregularly widened in the center of the valve and the stria density is lower (26-28 in 10 µm).

LM scalebar = 10 µm
Amphipleura pellucida LM1 Amphipleura pellucida LM2 Amphipleura pellucida LM3 Amphipleura pellucida LM4 Amphipleura pellucida LM5
Length Range
68.0-105.0 µm
Width Range
7.0 µm
Striae in 10 µm
48

Also compare to

Amphipleura lindheimeri

Grunow