Cryptodifflugia collum, after Chardez, 1971
Cryptodifflugia collum (Chardez, 1971) Bobrov et Mazei, 2017
Difflugiella collum Chardez, 1971
Diagnosis: Shell globose, transparent, hyaline, chitinous, aperture topped with rather broad cylindrical neck.
Dimensions: Shell length 16–18 μm, shell width 13–14 μm, aperture diameter 5–6 μm.
Ecology and distribution: Soil at a distance of 10 meter of a freshwater swamp. Belgium, France.
Reference: 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.