Haeckel, 1887
Spicules thin, 4-edged, proximal parts with latticed plates which coalesce into sphere with thin bars. Each spicule with 8 large 8 to 5-sided aspinal pores, surrounded by 1-2 cycles of small, polygonal coronal pores, surrounded in turn by 1 cycle of sutural pores. Each spicule with 12-16 thread-like myonemes. Diameter of latticed sphere: 0.24 mm; length of spicules: 0.2 mm; diameter of cell body: 0.08 mm.