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).

31 μm 63 μm 94 μm; x 640