(After coralline may be regarded as a form of Moseley.) hydroid colony in which the coenosarc forms a felt-work ramifying in all planes, and in which the chitinous perisarc is replaced by a massive calcareous skeleton.
The coenosarc may consist of a single elongated tube or stolon, forming the stem or axis of the cormus on which, usually, the appendages are arranged in groups termed cormidia; or it may take the form of a compact mass of ramifying, anastomosing tubes, in which case the cormus as a whole has a compact form and cormidia are not distinguishable.
It constitutes practically the exterior environment of the protoplasts, though it is ramifying through the interior of the plant.
This is secured by the development of much larger intercellular spaces, amounting to lacun~e or passages of very considerable size, which are found ramifying in different ways in their interior.
Zone, and they themselves produce other buds, so that a ramifying colony is created.