Family & Genus: With branching, anastomosing pseudopodia, mainly at extermities
(Illustrated Guide, 1985).
When inactive, rounded or ovoid; when active, expanded; 1 or more contractile vacuoles;
fresh water (Kudo, 1966).
Species:
Penardia sp.,
cell body μm long, μm wide,
x 640, green land near Toda bridge (on Ara-kawa), Itabashi-ku, Tokyo, January 9, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640