Reshetnjak, 1977
Shell with small pores. Spicules inside shell cylindrical, outside shell conical, as long outside as inside. Aspinal pores of different shape and disposition: at each spicule base are 2 small and 2 large pores. Around aspinal 1 cycle of 7-12 coronal pores. Shell diameter: 0.16 mm; spicule length: 0.7 mm; diameter of large aspinal pores: 0.01 mm.