(Polymastiidae) (Polymastiidae) is a biological family of the class Demospongiae and order Hadromerida.
Acanthopolymastia
Atergia
Polymastia
Proteleia
Pseudotrachya
Quasillina
Radiella
Ridleia
Sphaerotylus
Spinularia
Tentorium
Trachyteleia
Tylexocladus
Weberella
Acanthochaetetidae
Alectonidae
Choanitidae
Clionaidae
Hemiasterellidae
Placospongiidae
Polymastiidae
Sollasellidae
Spirastrellidae
Stylocordylidae
Suberitidae
Tethyidae
Timeidae
Trachycladidae