Ophiocomidae
Ophiocomidae is a family of brittle stars belonging to the order Ophiurida. These marine invertebrates are characterized by their star-shaped bodies and long, slender arms, which are typically covered in spines. They are found in a wide variety of habitats, including rocky shores, sandy bottoms, and coral reefs.
Common Names
Common names for members of Ophiocomidae include:
- Brittle stars
- Serpent stars
- Basket stars
Characteristics
Members of the Ophiocomidae family share several distinguishing characteristics:
- Five arms: These arms are flexible and can be easily detached if the animal is threatened, hence the name "brittle star".
- Central disc: This central body is typically flattened and covered in scales or plates.
- Oral surface: This surface faces downwards and contains the mouth, surrounded by a series of jaw plates.
- Spines: The arms are covered in spines, which can be used for defense, locomotion, and feeding.
- Tube feet: These small, tube-like appendages located along the undersides of the arms help with movement and feeding.
Environments
Ophiocomidae species are found in a variety of marine environments worldwide, including:
- Intertidal zones: These areas are regularly exposed to air and water, and brittle stars have adapted to survive these challenging conditions.
- Subtidal zones: These areas are permanently submerged, providing a more stable environment for brittle stars.
- Coral reefs: Brittle stars are a common sight on coral reefs, where they play a vital role in the ecosystem.
- Sandy bottoms: Many species of Ophiocomidae inhabit sandy bottoms, where they burrow and feed on detritus and small organisms.