[Class] Polycystinea Ehrenberg, 1838 - polycystines see Superclass Polycystinia Ehrenberg, 1838
   Order Nassellaria Ehrenberg, 1875 see Class Nassellaria Ehrenberg, 1847
     Family Theoperidae Haeckel, 1881
       Genus Conarachnium Haeckel, 1881
         1 Conarachnium facetum (Haeckel, 1887)
         2 Conarachnium parabolicum (Popofsky, 1913)