Pillar Coral (Dendrogyra cylindricus)

…a species of hard coral that is found in the western Atlantic ocean and the Caribbean sea. Pillar corals are usually found in warmer waters and grow on level or slightly sloping parts of the reef. Pillar corals are zooxanthellates, meaning they have symbiotic dinoflagellates living within their tissue. The dinoflagellates will photosynthesize and feed the coral, in turn the dinoflagellates benefit off of the coral’s nitrogenous wastes. Like other hard corals pillar coral colonies slow-growing and long-lived species 



Images: Agami and Harold Hudson

“Mustard Hill Coral” (Porites asteroides)

Also known as the yellow porites, the mustard hill coral is a species of colonial stony coral from the family Poritidae, which occurs in shallow waters on reefs in the tropical west Atlantic Ocean and the Caribbean Sea. Like other coral colonies, the colonies of P. asteroides are carnivorous and will feed at night for various zooplankton and bacteria using their stinging nematocysts to dispatch them. 


Animalia-Cnidaria-Anthozoa-Hexacorallia-Scleractina-Poritidae-Porites-P. asteroides

Image: unknown