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. crenulata glabra ( Schönborn, 1965 ) comb. nov. Fig. 4 b Difflugiella crenulata glabra Schönborn, 1965 Original description. Schönborn 1965 , P. 318, Fig. 1 m. Description. Shell differs from the typical form by the absence of excavations on the shell. Measurements. Shell length 15 µm, shell width 11–14 µm, aperture diameter 4 µm. Habitats. Freshwater, recorded on Typha . Geographical distribution. Germany, Poland.