| Sphaerodoridae | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Clade: | Pleistoannelida |
| Subclass: | Errantia |
| Order: | Phyllodocida |
| Family: | Sphaerodoridae |
Sphaerodoridae is a family of polychaetes belonging to the order Phyllodocida. [1]
Genera: [1]
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 and gas exchange. They may have two types of setae, which are found on the parapodia. Acicular setae provide support. Locomotor setae are for crawling, and are the bristles that are visible on the exterior of the Polychaeta. They are cylindrical in shape, found not only in sandy areas, and they are adapted to burrow. They often cling to seagrass (posidonia) or other grass on rocks and sometimes gather in large groups.
Nereididae are a family of polychaete worms. It contains about 500 – mostly marine – species grouped into 42 genera. They may be commonly called ragworms or clam worms.
Eunice is a genus in the polychaete family Eunicidae. Individuals grow to a length of between 0.5 and 300 cm. Their bodies have multiple segments. They have two eyes and five tentacles. They have well-developed sense organs and relatively large brains. Their color is dark purple-brown to red-brown with a white ring at the fourth segment. They are found in oceans and seas around the world. They have an evertible proboscis with distinctive mouthparts, some of which comprise two rows of maxilliary plates in a radula-like fashion.
Ampharetinae are a subfamily of terebellid "bristle worm". They are the largest subfamily of the Ampharetidae, of which they contain the great majority of the described genera.
Hesionidae are a family of phyllodocid "Bristle worms". They are marine organisms. Most are found on the continental shelf; Hesiocaeca methanicola is found on methane ice, where it feeds on bacterial biofilms.
Acrocirridae is a family of polychaete worms. Acrocirrids are detritivores, catching falling particles with numerous long prostomial tentacles. There are eight known genera, and at least 21 described species and subspecies within the Acrocirridae. The acrocirrids are primarily benthic (seabed-dwelling) animals, but at least two genera appear to have evolved or adapted to a pelagic (free-swimming) habitat.
Errantia is a diverse group of marine polychaete worms in the phylum Annelida. Traditionally a subclass of the paraphyletic class Polychaeta, it is currently regarded as a monophyletic group within the larger Pleistoannelida, composed of Errantia and Sedentaria. These worms are found worldwide in marine environments and brackish water.
Diopatra is a genus of polychaete worms in the family Onuphidae.
Eulalia is a genus of polychaete worms.
Bathynoe is a genus of marine annelids in the family Polynoidae. The genus includes two species, both known from depths of about 5000 m.
Bruunilla natalensis is a deep-sea scale worm that is known from a single specimen collected from the Mozambique Basin in the Indian Ocean from a depth of about 5000 m.
Aglaophamus is a genus of free-burrowing nephtyid worms.
Ceratocephale is a genus of polychaetes belonging to the family Nereididae.
Cossuridae is a monotypic family of polychaetes belonging to the class Polychaeta. Its sole accepted genus is Cossura.
Scalibregmatidae is a family of polychaetes belonging to the order Opheliida, and was first described by Anders Johan Malmgren in 1867.
Thelepus is a genus of polychaetes belonging to the family Terebellidae.
Prionospio is a genus of annelids belonging to the family Spionidae.
Lumbrineris is a genus of polychaetes belonging to the family Lumbrineridae.
Rhodininae is a subfamily of marine polychaete worms in the family Maldanidae.
Notoproctus is a genus of marine polychaete worms in the family Maldanidae. It is the only member of the subfamily Notoproctinae.