Description
Centroheliozoa with a periplast of internal tangential plate-scales and external radial spicules . The radial spicules have a shaft with 2 lateral wings extending along it , and a basal wing oriented perpendicular to the lateral ones. Eight freshwater , rarely brackish , species. References : Mikrjukov (1997) , Siemensma (1991 ) , Vc?HS (1992) . periplast (after Sie mensma , 1991 ).
Type species
Echinocystis erinaceoides (Petersen & Hansen , 1960) Mikrjukov, 1997
Figures
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Raw text
Centroheliozoa with a periplast of internal tangential plate-scales and external radial spicules . The radial spicules have a shaft with 2 lateral wings extending along it , and a basal wing oriented perpendicular to the lateral ones. Eight freshwater , rarely brackish , species. References : Mikrjukov (1997) , Siemensma (1991 ) , Vc?HS (1992) . periplast (after Sie mensma , 1991 ).