Habitat: Inhabit most reef enviroments, prefer somewhat shaded, protected areas. Most common between 15-99 feet. Ocasionally multiple colonies cover large areas of the reef. Extend tentacles at night. Distribution: Islas Pastores, Cristobal, Popa, Cayo Agua, Bastimentos, Solarte, Carenero, Colon, Bahía de Almirante, Laguna de Chiriquí, Península de Valiente y Río Calovébora Characteristics: Clumps of widely spaced polyps on long stalks, that appear to originate from a central core, form hemispherical mounds. Corallites round to oval. Shades of yellow-brown to brown and gray, often with blue to blue-green to green tinting that may be somewhat iridescent.