Genus: Test ovoid, flexible, with minute foreign bodies and a thick covering of hyaline
hair-like (or spine-like) projections; pseudopodia long, filose, branching (Kudo, 1966).
test 145 μm long, 80 μm wide, L/W=1.8, pseudostome 30 μm wide,
x 400, x 640, Karakemi marsh, Yasaka village, Nagano Pref., Japan, November 23, 2005 by Y. Tsukii
31 μm 63 μm 94 μm; x 640
D. mobile Archer, 1869: 60-120 μm long, 40-80 μm diam., test ovoid, flexible, attached particles; spinelike projections 8-10 μm long; pseudostome terminal 10-20 μm, variable shape (Illustrated Guide, 1985). One to two contractile vacuoles (Kudo, 1966).