Haeckel, 1887
Radial spicules compressed, two-edged, with serrated edges, about as long as shell diameter. Shell with numerous funnel-shaped dimples, majority blind, some perforated; 40 aspinal pores of same size as sutural pores. Crests between dimples covered with denticulate accessory spines. Diameter of shell: 0.21 mm, pores: 0.012 mm.