Astrangiidae
Astrangiidae is a family of stony corals in the order Scleractinia. These corals are commonly known as “star corals” or “astrangid corals” due to their distinct star-shaped skeletons. They are found in shallow, tropical and subtropical waters around the world.
Characteristics
Astrangiidae corals are characterized by their unique star-shaped corallites, which are the individual skeletal structures that house each polyp. These corallites are typically arranged in a radial pattern, giving the coral a distinctive appearance. The septa, which are the vertical partitions within the corallites, are often prominent and may be fused together to form a central columella.
Astrangiidae corals are typically colonial, meaning they consist of multiple polyps living together in a connected structure. However, some species may be solitary. They can exhibit a range of colors, from white and gray to brown, orange, and even pink. Some species may have a distinctive "brain coral" appearance due to the convoluted surface of their colonies.
Environments
Astrangiidae corals are found in a variety of marine environments, including:
- Reefs: Astrangiidae corals are common inhabitants of coral reefs, both in shallow and deeper waters.
- Lagoons: These corals can also be found in sheltered lagoons, where they are protected from strong currents and waves.
- Rocky shores: Some species of Astrangiidae can tolerate exposure to air during low tide and are found on rocky shores.
References
For more information on Astrangiidae, please refer to these reliable sources: