Nereis is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are marine. Nereis possess setae and parapodia for locomotion. They may have two types of setae, which are found on the parapodia. Acicular setae provide support. Locomotor chaetae are for crawling, and are the bristles that are visible on the exterior of the Polychaeta. They are cylindrical in shape, found in sandy areas, and they are adapted to burrow.
Aphrodita, or sea mouse, is a genus of marine polychaete worms found in the Mediterranean sea and the eastern and western Atlantic Ocean.
The Serpulidae are a family of sessile, tube-building annelid worms in the class Polychaeta. The members of this family differ from other sabellid tube worms in that they have a specialized operculum that blocks the entrance of their tubes when they withdraw into the tubes. In addition, serpulids secrete tubes of calcium carbonate. Serpulids are the most important biomineralizers among annelids. About 300 species in the family Serpulidae are known, all but one of which live in saline waters. The earliest serpulids are known from the Permian.
Spionidae is a family of marine worms within the Polychaeta. Spionids are selective deposit feeders that use their two grooved palps to locate prey. However, some spionids are capable of interface feeding, i.e. switching between deposit and suspension feeding.
Lanice,, is a genus of burrowing marine polychaetes typically found in the littoral zone.
Alitta succinea is a species of marine annelid in the family Nereididae. It has been recorded throughout the North West Atlantic, as well as in the Gulf of Maine and South Africa.
Spintheridae is a family of marine polychaete worms with a single genus, Spinther, containing these species:
Phyllodoce is a genus of polychaete worms, which contains about 200 species. The prostomium bears eyes, two pairs of antennae and a pair of large retractile nuchal organs. The eversible proboscis is clearly divided into two parts.
Sabellastarte spectabilis is a species of benthic marine polychaete worm in the Sabellidae family. It is commonly known as the feather duster worm, feather duster or fan worm. It is native to tropical waters of the Indo-Pacific but has spread to other parts of the world. It is popular in aquariums because of its distinctive appearance and its ability to remove organic particles and improve water quality.
The Onuphidae are a family of polychaete worms.
Diopatra is a genus of polychaete worms in the family Onuphidae.
Pettais a genus in the polychaetefamily Pectinariidae.
Scalibregma inflatum, also known as T headed worm, is a burrowing marine polychaete. It is a cosmopolitan species that can be found from the Arctic to Antarctica, although most probably several species are confounded.
Terebellides is a genus of polychaete worms in the family Terebellidae. Terebellides sepultura is named after the Brazilian heavy metal band Sepultura.
Phyllodocidae is a family of polychaete worms. Worms in this family live on the seabed and may burrow under the sediment.
Eulalia is a genus of polychaete worms.
Biremis blandi is a species of marine polychaete worm and the only species in the genus Biremis. It was first described by Polloni, Rowe, and Teal in 1973. The species was discovered in 1971 during a dive by the research submersible DSV Alvin at 635 m (2,083 ft) in the Tongue of the Ocean in the Bahamas. It is named for Alvin pilot Edward L. Bland, Jr., who first observed it.
Ophryotrocha is a genus of marine polychaete worms in the family Dorvilleidae.
Phyllochaetopterus is a genus of marine polychaete worms that live in tubes that they construct.
