Cryptodifflugia compressa ovata   Playfair, 1917

Diagnosis: Shell differing from the typical form by its more elongated and broadly ovate shape, and by the absence of an organic lip around the aperture.

Dimensions: Shell length 19 μm; shell width 17–18 μm.

Ecology: On aquatic plants and in wetlands.

Distribution: Australia.

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.