Diopatra neapolitana is a species of marine worm belonging to the family Onuphidae. This species is commonly known as the “neapolitan tubeworm.” It is a burrowing worm that creates a distinctive tube within the seabed, making it an integral part of the benthic ecosystem.
Description & Characteristics
Diopatra neapolitana is a relatively large polychaete, typically reaching a maximum size of about 10 cm in length. This worm is characterized by its long, cylindrical body with a distinctive reddish-brown coloration. The head region features prominent antennae and palps, while the body segments are adorned with numerous parapodia, which are fleshy appendages that aid in locomotion and respiration.
Habitat and Occurrence
Diopatra neapolitana is commonly found in intertidal and subtidal zones, with a depth range extending from the low tide mark to about 50 meters. This species primarily inhabits sandy or muddy substrates, where it constructs its characteristic tube-like dwelling. Its distribution encompasses various marine zones, including the neritic zone, which is the shallow water region over the continental shelf, and the bathyal zone, which encompasses the depths beyond the continental shelf.
Taxonomy
Diopatra neapolitana is a member of the Class Polychaeta, which constitutes a diverse group of segmented worms found in various marine environments. It belongs to the Order Eunicida, a group known for their predatory or scavenging habits, and the Family Onuphidae, which is characterized by its tube-dwelling species.
Feeding
Diopatra neapolitana is a carnivore, feeding primarily on smaller invertebrates that it captures within its tube. Its feeding strategy involves extending its proboscis, a long, extensible mouthpart, outward from the tube to grab prey. The proboscis is equipped with sharp jaws that enable it to efficiently seize and consume its food. This species is a significant predator within its benthic habitat, playing an important role in regulating populations of smaller invertebrates.
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