Family: Oval to flattened, or elongated; thin to spiny pseudopodia; endocysts not polygonal;
lack opercula (Illustrated Guide, 1985).
Genus: Pseudopods long, numerous, formed from hyaline zones (Illustrated Guide, 1985).
Pseudopods not anastomosing.
Similar species -->> Penardia Filamoeba sp. ?,
cell body μm long, μm wide,
x 640, Miyadera, Iruma city, Saitama Pref., Japan, May 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640