Cynarina Lacrymalisu

Corals are monocentric, oval or circular, and are cylindrical with a base for attachment, or have a pointed base when free-living. Primary septa are thick and have extremely large, rounded or lobed teeth. Paliform lobes are usually well developed. Columellae are broad and compact. Tentacles are extended only at night. During the day the mantle is inflated with water and is translucent so that the toothed primary septo-costae are clearly seen. In conditions of low light the mantle may be over twice the diameter of the skeleton.