Description
Centrohelid heliozoa with a periplast of siliceous elements , mostly tangential spicules or scales , radial elements if present occupy an outer position and are radially symmetrical with a tube-like , trumpet-like , or funnel-like shape. Four genera. g . Siemensma, 1991) and a typical scale .
Type species
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Raw text
Centrohelid heliozoa with a periplast of siliceous elements , mostly tangential spicules or scales , radial elements if present occupy an outer position and are radially symmetrical with a tube-like , trumpet-like , or funnel-like shape. Four genera. g . Siemensma, 1991) and a typical scale .