Genus: Tectum flexible, punctate, spiny or folded; body mound-like in locomotion; pseudopods clear, conical, under or through tectum (Illustrated Guide, 1985). Species:

31 μm 63 μm 94 μm; x 640

Images of collecting locality: No.1, Shijuhachi-ike (pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, July 20, 2008 by Y. Tsukii