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Heliozoea: Centrohelida

 Acanthocystis turfacea
Carter, 1863

Acanthocystis turfacea 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).
Other endosymbioses

Acanthocystis turfacea Carter, cell body spherical, 78 μm in diam., ciliceous spines with bifurcated ends, long spines 42 μm long, short spines 12 μm long, x 400, x 640, Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, May 8, 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Acanthocystis turfacea Acanthocystis turfacea Acanthocystis turfacea Acanthocystis turfacea

Images of collecting locality: Karakemi marsh, Yasaka, Omachi city (formerly Yasaka village), Nagano Pref., Japan, May 8, 2006 by Y. Tsukii

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