Knobby Cactus Coral

Mycetophyllia aliciae

Knobby Cactus Coral, a member of the family Faviidae, is notable for its weakly attached, often circular plates. These corals typically exhibit little valley formation, especially towards the center of the colony, and are characterized by thick septo-costae with large dentations. They are usually brown or green, often featuring white centers, making them distinguishable from other coral species. This coral species is found in the Western Central Atlantic, specifically in the Gulf of Mexico and the Caribbean Sea. It inhabits reef-associated environments, thriving at depths ranging from the surface to 73 meters. Most occurrences are recorded at shallower depths, with 81% found at less than 40 meters and 90% at less than 50 meters. The Knobby Cactus Coral is zooxanthellate, meaning it has a symbiotic relationship with photosynthetic algae. The species reproduces by shedding mature gametes into the coelenteron, which are then spawned through the mouth. The life cycle progresses from a planktonic planula larva to a settled coral with developed tentacles and septa. According to the IUCN, this species is categorized as Least Concern.