A review of testate amoeba genus Cryptodifflugia Penard, 1890 (Phryganellina: Cryptodifflugiidae) with a key to species Author Bobrov, Anatoly Author Mazei, Yuri text Zootaxa 2017 4282 2 292 308 journal article 28745 10.11646/zootaxa.4282.2.4 8265bc1a-8903-47d1-a59d-218d749895e5 1175-5326 818668 CB1CD0B8-797B-4F2D-B100-C12E20AA092E C. collum ( Chardez, 1971 ) comb. nov. Figs 2 d, 2e Difflugiella collum Chardez, 1971 Original description. Chardez 1971 , P. 264, Fig. 10. Description. Shell globose, transparent, hyaline, chitinous, aperture topped with rather broad cylindrical neck. Measurements. Shell length 16–18 µm, shell width 13–14 µm, aperture diameter 5–6 µm. Habitat. Soil at a distance of 10 meter of a freshwater swamp. Geographical distribution. Belgium, France.