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).

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Intact cells Japan, 199?	Intact cells Japan, 199?	Intact cells Japan, 199?	Intact cells Japan, 199?
strain A-2 Japan, 199?	strain B-2 Japan, 199?	strain SU4 Ibaraki, 199?	strain SU2 Ibaraki, 199?
Intact cells Okinawa, 199?	strain 97D Uruguay, 199?	Intact cells Japan, 199?	Intact cells Sendabori Chiba, 2002
Intact cells water reservoir near Yamaguchi Univ. Yamaguchi, 2004	Intact cells cell μm Japan, xxxx
Feeding Japan, 199?	Star formation Japan, 199?	Cell division Japan, 199?	Cell division Japan, 199?
Silver-stained Japan, 199?	heat-extracted Japan, 199?	Abnormal ? Japan, 199?	Intact cells Tsukuba Ibaraki, 2002
Intact cells μm Omine-numa Tsukiyono Gunma, 2003	Intact cells μm Kawatabi Narugo Miyagi, 2003	A. proteus ? μm Obihiro-Hasshonochi Obihiro Hokkaido, 2005	A. proteus 600 x 70 μm Akebono marsh Tsuchiyu-onsen Fukushima, 2005
A. proteus μm Shimo-no-koike Shiga highland Nagano, 2007

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