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Lobosea: Gymnamoebia: Amoebida: Tubulina: Amoebidae

Polychaos dubium
Schaeffer, 1916

Polychaos dubium Genus: Pseudopods meld at bases during polypodial locomotion; nucleus oval (Illustrated Guide, 1985). Usually polypodial; pseudopodia sometimes flattening and broadening towards ends; may be monopodial in rapid locomotion; no dorsal ridges (Page, 1976).
Species: Polypodal, 100-400 μm long; ecto- & endoplasm clear; nucleus, ellipsoid, 37-40 by 30-32 μm (Illustrated Guide, 1985). 200-400 μm; rarely monopodial; nucleus a prolate spheroid, 30-40 μm (Page, 1976). 400 μm; an average of 12 pseudopodia (How to know the protozoa, 1979).

Polychaos dubium (Schaeffer, 1916) Schaeffer, 1926, cell body μm long, μm wide, nucleus μm in diam., endosome μm in diam., x 200, x 400, x 640, Shiba river, near Owada Park, Saitama city, Saitama Pref., Japan, April 3, 2005 by Y. Tsukii
scale 100 μm scale 200 μm scale 300 μm; x 200 : scale 50 μm scale 100 μm scale 150 μm; x 400
Polychaos dubium Polychaos dubium Polychaos dubium

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