Cryptodifflugia apiculata  (Cash, 1904)
Syn.: Difflugiella apiculata  Cash, 1904

Diagnosis: Shell ovoid, not laterally compressed, chitinous, smooth, transparent, colorless, and lacking mineral particles; aperture circular. Cytoplasm colorless.

Dimensions: Shell length 40 μm; shell width 28–30 μm.

Ecology: Freshwater; in Sphagnum mosses, wet green mosses, and on the surface of aquatic algae and plants.

Distribution: Reported from England, Russia, Germany, and Romania.

References: Bobrov, A., Mazei, Y., 2017. A review of testate amoeba genus Cryptodifflugia Penard, 1890 (Phryganellina: Cryptodifflugiidae) with a key to species. Zootaxa 4282 (2): 292–308.