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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, cell body μm long, μm wide, L/W=, x 640, No.2, Near Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii
scale 100 μm scale200 μm scale300 μm; x 200 : scale 50 μm scale 100 μm scale 150 μm; x 400
Polychaos Polychaos Polychaos Polychaos Polychaos

Images of collecting locality: No.2, Near Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii


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