[1][2] It is endemic to South Africa,[3] where it occurs between the Cape Peninsula and Sodwana Bay.

It is a pink to purplish or brown many-turreted sponge, which grows in sheets usually on vertical walls.

The coalescent (fused) tubular branches terminate in rounded ends with slightly raised conspicuous oscules.

Its surface is slightly bristly with small ostia (channels allowing for water movement), and its texture is soft and compressible.

[3] They are frequently attached to rocks by coralline algae which grows between the sponge matrix.