Haeckel, 1887
Sphere with large pores, wide bars. Spicules 4-edged proximally, cylindrical distally, section outside sphere 3-5 times longer than within sphere. Aspinal pores oval, 5-7 times larger than bars. Accessory spines very long, 2 times shell radius, zigzag. Spicule length: 0.31-0.50 mm; accessory spines: 0.15-0.20 mm; shell diameter: 0.6-0.1 mm.