Genus: Oral aperture small, oval (Carey, 1992).
With more than 10 body kineties and cross-striations between adjacent kineties (Illustrated Guide, 1985).
Species:
Pseudomicrothorax sp.,
cell body μm long, μm wide,
x 640, near railway station, Kagami-ishi town, Fukushima Pref., Japan, August 2003, by Y. Tsukii
31 μm
63 μm
94 μm; x 640