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Lobosea: Gymnamoebia: Amoebida: Amoebidae

Amoeba proteus
(Pallas, 1766) Leidy 1878 or Leidy, 1879

Amoeba proteus Genus: Pseudopods do not meld at bases during polypodial locomotion; pseudopods ridged; uninucleate (Illustrated Guide, 1985).
Species: Monopodal, 300-600 μm long; pseudopods, cylindroid, granular, with clear caps, longitudinal ridges; uroid, temporary, morulate; nucleus, discoid to polymorphic, often biconcave, 30-35 μm diam (Illustrated Guide, 1985). Up to 600 μm or more; one discoid nucleus, 30 μm, sometimes folded (How to know the protozoa, 1979).
Similar Genus -->> Trichamoeba; Polychaos

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Amoeba proteus, single cell, x 100, by Y. Tsukii
scale 200 μm scale 400 μm scale 600 μm; x 100
Amoeba proteus Amoeba proteus


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