Ocnus
Ocnus is a genus of marine bristle worms belonging to the family Terebellidae. These worms are commonly known as “beard worms” or “sand-castle worms” due to their distinctive appearance. They are widespread throughout the world’s oceans and play an important role in marine ecosystems.
Characteristics
Ocnus worms are characterized by their long, slender bodies and numerous, feathery tentacles that extend from their heads. These tentacles, which are covered in cilia, are used to filter food from the water. They typically range in size from a few centimeters to over a meter in length. They also possess a unique feature called a "beard" which is a group of long, hair-like bristles that can be used for defense or for anchoring themselves to the substrate.
Environments
Ocnus worms are found in a variety of marine habitats, including sandy bottoms, rocky reefs, and coral reefs. They are typically found in shallow water, but some species can live in deeper water environments. These worms are often found in areas with strong currents, which helps to bring them food.
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