Genus: Free-living; skeleton with or without coat; cuirass made of scales and of the basal part
of the spicules; coat indistinguishable (Illustrated Guide, 1985).
Siliceous scales arranged tangentially and radiating siliceous spines with pointed or
bifurcated ends; (Kudo, 1966).
Species: Body contains zoochlorellae; long & short glassy spicules (How to know the protozoa, 1979).
Acanthocystis turfacea Carter,
cell body spherical, 53 μm in diam., ciliceous spines with bifurcated ends,
long spines 38 μm long, short spines 12 μm long,
x 640, Oyomi marsh, Hakuba village, Nagano Pref., Japan, May 8, 2006 by Y. Tsukii
31 μm 63 μm 94 μm; x 640
Cell body spherical, μm in diam., spines μm long, x 640
Images of collecting locality:
Oyomi marsh, Hakuba village, Nagano Pref., Japan, May 8, 2006 by Y. Tsukii