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. pusilla Playfair, 1917 Fig. 6 i Difflugiella pusilla Grospietch, 1964 Original description. Playfair 1917 , P. 658, Table 38, Fig. 20. Description. Shell small, subsquare (length equal to width), lateral sides almost vertical and parallel, base of fundus rounded. Shell smooth, firm, chitinoid, structureless, without xenosoms. Aperture circular, its diameter being almost equal to maximum shell width. Measurements. Shell length 10–22 µm, shell width 10–20 µm, aperture diameter—6–7 µm. Habitat. Water vegetation, wet mosses on rocks. Geographical distribution. Cosmopolitan.