Commentaire : Corallum free-living. Each coral with usually one, centrally located mouth (monostomatous). The outline varies from circular to slightly oval. The corals vary in thickness, in cross-section they range from slightly arched to slightly concave. The length of the central fossa is 1/10 to 1/5 of the coral length. Maximum length of the coralla up to 20 cm. The septa are densely packed and straight. The septa of lower order cycles are solid, thicker and higher than those of higher orders. The corallum wall is solid and not granulated. The costae are more or less equal in small specimens, but those of lower orders are more prominent in larger specimens. The costae are straight and distinct near the corallum margin, but less distinct and sometimes wavy near the centre. The costae are coarsely ornamented. The costal projections are club-shaped, blunt and granular at the tips.
Protection : haute