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Description of Nebela barbataTestate amoeba, the lorica is colourless and pyriform with an elongated neck. It is composed of a mixture of oval, circular and elongate shell plates, with numerous short, fine spines projecting from the junctions of the shell plates. The spines are often flattened against the shell and difficult to see. The aperture is oval and surrounded by a collar of organic cement, the inner margin of which has about eight tooth-like protrusions. Length of shell 80-160 microns, breadth of shell 38-62 microns, depth of shell 36-41 microns, diameter of aperture 10-23 microns.