Acanthocystis penardi
Wailes 1925
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).
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Other endosymbioses
Acanthocystis penardi Wailes ?,
cell body μm long, μm wide, L/W=,
x 640, No.10 (Suimei-no-hotori), Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, November 15, 2008, by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.10 (Suimei-no-hotori), Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, November 15, 2008, by Y. Tsukii
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