Genus: Tectum flexible, punctate, spiny or folded; body mound-like in locomotion;
pseudopods clear, conical, under or through tectum (Illustrated Guide, 1985).
Species: Disc-like in locomotion; anterior hyaloplasmic border sometimes producing short, finely conical
pseudopodia; posterior border sometimes trailing short filaments;
14.5-38.5 μm in locomotion,
usually 19-38 μm;
nucleus, 4.8-6.9 μm (Page, 1976).
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