Habitat: Shell fragments in protected areas between marine pastures close to mangrove roots. Distribution: Caribbean Islands, Florida, Venezuela, Caribe Costa Rica y Panamá. Natural History Notes: New record for Panama since 2003. Depth: 4-6 m, Bocas del Toro: Characteristics: The species can be solitary or can live in small groups. Possess an inferior and superior crown. Large peduncle. The principal characteristic of this species is that the cysts are surrounded by a layer of calcium carbonate.