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Genus Euglypha

Shell is radially symmetric, ovoid or long-ovoid, circular or elliptic in cross-section; covered by circular or ovoid endogenous siliceous plates which overlap and usually arranged in longitudinal rows. Sometimes, body scales carry needles or spines. Aperture is terminal (acrostome), circular or ovoid, always surrounded by denticulate plates of various form (oval, circular, rhombic, triangular). Shell is colorless, transparent, rare brownish or yellowish. Ecology: freshwaters, mosses, soils. Type species: Euglypha tuberculata Dujardin, 1841