Order Astrophorida

also sometimes known as Choristida Sollas, include sponges with asterose microscleres and tetractinal megascleres (either sometimes lost), together with microxeas, microrhabds and oxeas, and skeletal architecture always radial, at least at the surface, but more confused towards the centre of the body. Five families are currently included (with 38 genera and two subgenera), and species are known from all oceans and at all depths.