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Heliozoea: Centrohelida

Choanocystis sp.
Hertwig & Lesser
Syn.: Acanthocystis

Choanocystis 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:
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Choanocystis sp., cell body 19 μm diam., siliceous spines 4 μm long, axopodia 43 μm long, x 400, x 640, Japan, November 1998, 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
Choanocystis Choanocystis Choanocystis Choanocystis Choanocystis


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