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. leachi Nicholls, 2006 Fig. 5 d Original description. Nicholls 2006 , P. 296, Figs 1 , 2 . Description. Shell oval elliptical, circular in transverse section, with smooth surface and very small aperture. Measurements. Shell length 10–16 µm, shell width 8–12 µm, aperture diameter 1.5–2.5 µm. Habitat. Aquatic species living in bottom sediments. Geographical distribution. Canada.