## Species in coralligenous environments It's a concretized environment with a multitude of little sub environment, strongly colonized by [Porifera (sponges)](Porifera%20(sponges).md), [Bryozoa (ectoprocta)](Bryozoa%20(ectoprocta).md), [Ascidiacea](Ascidiacea.md) and [Cnidaria](Cnidaria.md)