eukaryotes see Domain Eukaryota Chatton, 1925 Count: - Centroheliozoa Dürrschmidt & Patterson, 1987 see Class Centrohelea Kühn, 1926 Count: [g] 3f;14g Family Acanthocystidae Claus, 1874 Count: [g] 6g Genus Pterocystis Siemensma & Roijackers, 1988 Count: -