Polymastiidae is a family of demosponges found in oceans throughout the world. It is the only family in the monotypic order Polymastiida. A useful diagnostic characteristic of members of this family is the presence of numerous surface papillae although this feature is shown by some other sponges.
Genera The following genera are recognised in the family Polymastiidae Acanthopolymastia Astrotylus Atergia Koltunia Polymastia Proteleia Pseudotrachya Quasillina Radiella Ridleia Sphaerotylus Spinularia Tentorium Trachyteleia Tylexocladus Weberella
References North East Atlantic Taxa
WoRMS - Polymastiidae Gray, 1867