Commentaire : Corallum free-living. Each coral with usually one, centrally located mouth (monostomatous). Their outline is oval-elongate with rounded, blunt (rarely tapering) ends. The coralla vary in thickness and are either flat or arched. The length of the central fossa, measured at its bottom, is 1/10 to 1/3 of the coral length. Maximum length of the coralla up to 20 cm. The septa are densely packed and usually straight, or otherwise wavy or slightly bending. The septa of lowest orders are thicker and more exsert. Tentacular lobes may be present above the inner edges of the septa The septal margins are finely ornamented with septal dentations which may vary from granular to slightly angular. The corallum wall is not granulated and solid in relatively small specimens whereas it is perforated in large specimens. The costae are almost of equal size, straight and distinct from the corallum margin towards the centre. The costae are finely to coarsely ornamented. The costal spines are blunt, granular and when fused, flattened at the costal sides.
Protection : basse