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.