Family: Body monopodial; pseudopods rare; locomotion by slight forward bulging; cysts common.
Genus: Hyaline cap usually present in locomotion; cysts uninucleate to trinuclearte (Illustrated Guide, 1985). Pseudopods formed by forward bulding, with a constriction at base.
G. mira (Gläser, 1912): locomotive, cylindroid, 20-50 μm long, 5-10 μm wide; pseudopods none; a knob-like uroid (Illustrated Guide, 1985). locomotive 20-40 μm long (How to know the protozoa, 1979).