Genus: Thin test spherical to elongate ellipsoid; pseudostome terminal; many filopodia, branching and
anastomosing; many species (Kudo, 1966).
Species:
Gromia Dujardin,
test nearly spherical, 34 μm in diam., pseudostome μm wide,
x 640, Kurome river, Asaka city, Saitama Pref., Japan, January 8, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640