Phryganella microps Valkanov, 1963
Diagnosis: shell in dorsal view spherical or nearly spherical, in lateral view dome shaped, translucent, chitinoid, embedded with small xenosomes; young shells colourless, older shells yellow to deep brown; aperture large, circular, without collar; nucleus vesicular; pseudopodia often numerous, digipodia and conopodia present.
Dimensions: Valkanov: test diameter 12-13 µm, sometimes up to 16 µm; test height 9-9.5 µm.
Ecology: Freshwater, locally abundant.
Remarks: This species may be confused with specimens of Cryptodifflugia.