Psammocoridae

The Psammocoridae are a family of stony corals in the order Scleractinia. They are commonly known as “sand corals” due to their tendency to inhabit sandy substrates. These corals are characterized by their distinctive morphology and distribution, often found in shallow, warm waters across various regions of the world.

Stony Coral – Psammocora haimiana

Stony Coral – Psammocora columna

Branched Sandpaper Coral – Psammocora contigua

Stony Coral – Psammocora profundacella

Characteristics

Psammocoridae are distinguished by their unique skeletal structure. Their corallites (individual coral polyps) are typically small and closely spaced, forming a dense, branching or massive colony. They possess a distinct radial symmetry, with well-defined septa (internal skeletal partitions) and columella (central pillar of the corallite). The coral skeleton is often porous and lightweight, allowing for greater flexibility and adaptability to sandy environments.

Environments

Psammocoridae are primarily found in shallow, tropical and subtropical waters, with a preference for sandy substrates. They are often associated with seagrass beds, coral reefs, and other soft-bottom habitats. Some species can also be found in deeper, more shaded environments. The adaptability of Psammocoridae to a variety of habitats is reflected in their wide distribution.

Distribution

Psammocoridae have a global distribution, with species found in the Indo-Pacific, Atlantic, and Caribbean regions. Their range encompasses warm, tropical and subtropical waters, reflecting their preference for shallow, sunlit environments.

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