Meisterfeldia turfacea (Zacharias, 1903) Brobov, 2016
Diagnosis: Shell is looking like curved bowl with short neck. The aperture is circular, surrounded by well developed broad collar. Shell surface is smooth, without extraneous mineral particles.
Dimensions: shell length 14–18 μm; shell breadth 10–16 μm; diameter of aperture 6 μm.
Ecology: wet peat mosses.
Remarks: The species differs morphologically from Cryptodifflugia vanhoornei by its smaller size: the shell is nearly twice smaller, it is more graceful and always stained with brown.