Antedon
Antedon is a genus of feather stars, which are crinoids, a class of echinoderms. Feather stars are characterized by their feathery arms and their ability to swim using their arms to propel themselves through the water. They are found in all the world’s oceans, but are most abundant in tropical and subtropical waters. Antedon is a diverse genus with approximately 30 species described.
Common Names
Antedon species are commonly known as feather stars or comatulids.
Characteristics
Antedon feather stars are typically small, with arm spans ranging from a few centimeters to several inches. They have a central body, or calyx, from which their arms radiate. The arms are covered in small, feathery pinnules, which give them their characteristic appearance.
Like other crinoids, Antedon feather stars have a unique feeding method. They use their arms to capture small organisms, such as plankton and detritus, from the water. Their arms are covered in tiny feeding tentacles that help them gather food. They then transport the food to their mouth, which is located on the underside of the calyx.
Antedon feather stars are also known for their ability to regenerate lost arms. If an arm is damaged or lost, they can grow a new one. This ability is thought to be an adaptation to protect them from predators.
Environments
Antedon feather stars are found in a variety of marine habitats, including coral reefs, seagrass beds, and rocky shores. They are typically found in shallow water, but some species can live in deeper waters.
Most Antedon species prefer to live in areas with strong currents, as this brings them a steady supply of food. They may also be found in areas with a high density of plankton, their primary food source.
References
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