Hesione picta is a species of marine worm belonging to the family Hesionidae. It is a common and widespread species, found in various marine environments across the globe.
Description and Characteristics
Hesione picta is characterized by its elongated, segmented body, which can grow up to 15 millimeters in length. Its body is typically a vibrant green color, often with reddish-brown markings, giving it a distinctive appearance. The worm possesses numerous parapodia, fleshy appendages that aid in movement and respiration.
Habitat and Occurrence
Hesione picta is typically found in intertidal and subtidal zones, primarily inhabiting rocky substrates and seagrass meadows. The species is known to tolerate a wide range of salinities, making it adaptable to various marine environments. This species is a common inhabitant of the infralittoral zone, the region of the ocean floor that extends from the lowest point of the intertidal zone to depths of approximately 50 meters.
Taxonomy
Hesione picta belongs to the Class: Polychaeta, Order: Phyllodocida, and Family: Hesionidae. Polychaetes are a large and diverse group of marine worms characterized by their segmented bodies and numerous bristle-like structures called setae. Phyllodocida is an order within Polychaeta that includes worms with distinct parapodia and a well-developed head. The family Hesionidae is a group of polychaetes known for their flattened bodies and distinct cephalic appendages.
Feeding
Hesione picta is a carnivorous species, primarily feeding on small invertebrates such as crustaceans and mollusks. Its diet includes various organisms found within its marine habitat. Its feeding behavior involves utilizing its parapodia to capture prey, which it then consumes using its mouthparts.
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