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Genus Penardochlamys

Shell is round, wavy outline, chitionoid, flexible, punctuate. Aperture is circular or wavy, rarely visible, slightly invaginated. Pseudopods cylindroid, finely granular, round ends. Endoplasm granular. Two vesicular nuclei; one or two contractive vacuoles. Ecology: freshwater. Monospecific. Type species: Penardochlamys arcelloides (Penard, 1904)