Genus: Test ovoid, with foreign bodies; circular or elliptical in cross-section; aperture (pseudostome) terminal; granulated cytoplasm colorless or greyish; filopodia long, straight or branching (Kudo, 1966). Species:

No hair-like (or spine-like) projection. -->> Diaphoropodon

50 μm 100 μm 150 μm; x 400

Pseudodifflugia horrida Penard, 1902: Test like P. gracilis (chitinoid, yellow, ovoid to subspherical, attached quartz grains) but flexible at apertual end, 50-60 μm long, 30-35 μm diam.; pseudostome 25-30 μm (Illustrated Guide, 1985).