Assulina minor Penard, 1890

Diagnosis: Small shell, similar to that of Assulina semilunum, but relatively more elongated—though variable—very flattened, with a chocolate‑brown tint, often banded as in A. semilunum, and with a torn terminal aperture. The platelets are small, forming elongated hexagons.
Plasma, nucleus, and contractile vacuole as in related species; pseudopodia linear.

Dimensions: Penard (1890): Length 30–40 µm, generally 35 µm; width 20–30 µm.

Ecology: In Sphagnum and other mosses.

Distribution: According to Penard, 1902: Wiesbaden, Marstrand, Gothenburg, Jura, Geneva,