Commentaire : Corallum free-living. Each coral with several mouths. The corals are usually elongate with ends varying from tapering to rounded. The coralla are relatively thick and vary from flat to highly arched. "The interstomatous septa are short because of the high density of the stomata. At their ends, they may be partly fused with neighbouring septa. At the coral periphery they are oriented parallel to each other, while closer to the central axis they radiate from the stomata." Maximum length of the coralla up to 60 cm. "The septa are densely packed, straight and of unequal thickness and height. The septa of lower orders are thick, those of higher orders are thin. The septa of lower orders are more exsert than those of higher orders." The septal margins are finely ornamented with irregularly angular dentations. The corallum wall is perforated. It is not covered by granulations. At the coral periphery, the costae are distinct and straight, closer to the centre, however, they become difficult to distinguish because here they become laterally fused. They are coarsely ornamented with spines which are either elongate and granular at the tips or blunt and spinose.
Protection : basse