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Genus Pseudonebela

Shell is flask-like, round in cross section; composed of organic secretion of an apparently smooth cement and agglutination of extraneous particles including diatoms and, more commonly, many rounded plates, and with many small irregular platelets juxtaposed in between the larger rounded plates. Aperture is terminal, surrounded by an organic lip with 311 denticulations that give the opening a lobed appearance. Ecology: tropical freshwater. Monospecific. Type species: Pseudonebela africana Gautier-Lièvre, 1953