''Nereis'' is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are

marine Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (disambiguation) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * ...

. ''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. Nereis worms are commonly known as rag worms or clam worms. The body is long, slender, and dorso-ventrally flattened, reaching a length of 5-30 cm. The head consists of two parts: a roughly triangular anterior lobe—the prostomium—and a posterior ring-like portion—the peristomium. The latter bears four pairs of tentacular cirri, dorsally two pairs of eyes, and ventrally a pair of short two-jointed palps.

Etymology

The scientific Latin genus name ''Nereis'' derives from the Ancient Greek Νηρηΐς : Nērēís (stem Νηρηΐδ- : Nērēid), a sea nymph.

Ecology

''Nereis'' are osmoconformers. They are

dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ...

(individuals are male or female) and they release their

haploid Ploidy () is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respectively ...

gametes into the water, a process called ''spawning''. Moreover, upon fertilization and mitotic divisions of the zygote, Nereids form a larval stage which is similar to that of molluscs – i.e. a trochophore larva.

Species

The genus ''Nereis'' contains the following species: *''

Nereis abbreviata ''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 ...

'' Holly, 1935 *''

Nereis abyssa ''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 ...

'' Imajima, 2009 *'' Nereis abyssicola'' (Horst, 1924) *''

Nereis acustris ''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 o ...

'' Linnaeus, 1767 *''

Nereis aegyptia ''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 o ...

'' (Savigny ''in'' Lamarck, 1818) *''

Nereis aestuarensis ''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 o ...

'' Knox, 1951 *''

Nereis aibuhitensis ''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 o ...

'' (Grube, 1878) *''

Nereis albipes ''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 o ...

'' Grube, 1873 *''

Nereis allenae ''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 o ...

'' Pettibone, 1956 *''

Nereis amoyensis ''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 o ...

'' (Treadwell, 1936) *''

Nereis angelensis ''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 o ...

'' Fauchald, 1972 *''

Nereis angusta ''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 o ...

'' (Kinberg, 1866) *''

Nereis angusticollis ''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 o ...

'' Augener, 1913 *''

'' Kinberg, 1866 *''

Nereis annularis ''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 fo ...

'' Blainville, 1818 *''

Nereis anoculis ''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 ...

'' Hartman, 1960 *''

Nereis anoculopsis ''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 ...

'' Fauchald, 1972 *'' Nereis anodonta'' Schmarda, 1861 *''

Nereis antipoda ''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 ...

'' Knox, 1960 *''

Nereis apaliae ''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 fo ...

'' Wilson, 1985 *'' Nereis arenaceodonta'' *'' Nereis arroyensis'' Treadwell, 1901 *''

Nereis atlantica ''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 fo ...

'' McIntosh, 1885 *''

Nereis augeneri ''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 ...

'' Gravier & Dantan, 1934 *'' Nereis badiotorquata'' (Grube, 1878) *'' Nereis baliensis'' (Horst, 1924) *''

Nereis baolingi ''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 fo ...

'' Leon-Gonzalez & Solis-Weiss, 2000 *'' Nereis batjanensis'' (Horst, 1924) *''

Nereis bifida ''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 fo ...

'' Hutchings & Turvey, 1982 *''

Nereis bipartita ''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 ...

'' (Bobretzky, 1868) *'' Nereis blainvillei'' delle Chiaje, 1828 *''

Nereis broa ''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 ...

'' Lana & Sovierzovsky, 1987 *'' Nereis buitendijki'' (Horst, 1924) *''

Nereis caecoides ''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 ...

'' Hartman, 1965 *'' Nereis caerulea'' Linnaeus, 1758 *''

Nereis cagliari ''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 ...

'' Kinberg, 1866 *''

Nereis calamus ''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 fo ...

'' Renier, 1804 *'' Nereis callaona'' (Grube, 1857) *'' Nereis caparti'' Fauvel, 1953 *''

Nereis casoae ''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 ...

'' Leon-Gonzalez & Solis-Weiss, 2001 *'' Nereis castelnaui'' Quatrefages, 1866 *''

Nereis caudata ''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 ...

'' *'' Nereis caudipunctata'' (Grube, 1857) *''

Nereis caymanensis ''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 ...

'' Fauchald, 1977 *''

Nereis chlorodes ''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 fo ...

'' Blanchard ''in'' Gay, 1849 *'' Nereis chrysocephala'' Pallas, 1788 *''

Nereis cirrhigera ''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 ...

'' Viviani, 1805 *'' Nereis cirriseta'' Hutchings & Turvey, 1982 *''

Nereis cockburnenesis ''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 ...

'' Augener, 1913 *''

Nereis cockburnensis ''Nereis'' is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are ocean, marine. ''Nereis'' possess setae and parapodia for locomotion and gas exchange. They may have two types of setae, which are f ...

'' Augener, 1913 *''

Nereis contorta ''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 ...

'' Dalyell, 1853 *'' Nereis corallina'' Kinberg, 1866 *''

Nereis cornuta ''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 ...

'' Quatrefages, 1866 *'' Nereis costaricaensis'' Dean, 2001 *''

Nereis coutieri ''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 ...

'' Gravier, 1900 *''

'' Gravier, 1899 *'' Nereis crassa'' Gmelin ''in'' Linnaeus, 1788 *''

Nereis crocea ''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 ...

'' Renier, 1804 *''

Nereis cuprea ''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 fo ...

'' delle Chiaje, 1822 *''

'' (Schmarda, 1861) *''

Nereis cylindraria ''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 ...

'' *'' Nereis dakarensis'' Fauvel, 1951 *''

Nereis dayana ''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 ...

'' Sun & Shen ''in'' Sun, Wu & Shen, 1978 *'' Nereis delagica'' Gmelin ''in'' Linnaeus, 1788 *'' Nereis delicatula'' Blanchard ''in'' Gay, 1849 *''

Nereis delli ''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 fo ...

'' Knox, 1960 *'' Nereis denhamensis'' Augener, 1913 *'' Nereis donghaiensis'' He & Wu, 1988 *'' Nereis dorsolobata'' Hartmann-Schröder, 1965 *''

Nereis edwardsii ''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 ...

'' delle Chiaje, 1828 *''

Nereis ehlersiana ''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 fo ...

'' (Grube, 1878) *''

Nereis ehrenbergi ''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 ...

'' Grube, 1868 *''

Nereis erythraeensis ''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 fo ...

'' *'' Nereis falcaria'' (Willey, 1905) *''

Nereis falsa ''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 ...

'' Quatrefages, 1866 *'' Nereis fauchaldi'' Leon-Gonzalez & Diaz-Castaneda, 1998 *''

Nereis fauveli ''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 ...

'' Gravier & Dantan, 1934 *'' Nereis filicaudata'' Fauvel, 1951 *''

Nereis foliosa ''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 ...

'' Schmarda, 1861 *''

Nereis fossae ''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 ...

'' Fauchald, 1972 *''

Nereis frontalis ''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 ...

'' Bosc, 1802 *'' Nereis fucata'' (Savigny ''in'' Lamarck, 1818) *'' Nereis funchalensis'' (Langerhans, 1880) *''

Nereis fusifera ''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 ...

'' Quatrefages, 1866 *''

Nereis garwoodi ''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 fo ...

'' Gonzalez-Escalante & Salazar-Vallejo, 2003 *''

Nereis gayi ''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 ...

'' Blanchard ''in'' Gay, 1849 *''

Nereis ghardaqae ''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 fo ...

'' Hartmann-Schröder, 1960 *''

Nereis gigantea ''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 ...

'' Linnaeus, 1767 *'' Nereis gisserana'' (Horst, 1924) *''

Nereis goajirana ''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 fo ...

'' Augener, 1933 *''

Nereis gracilis ''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 ...

'' (Hansen, 1878) *''

Nereis granulata ''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 ...

'' Day, 1957 *''

Nereis gravieri ''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 ...

'' Fauvel, 1900 *''

'' Fauvel, 1902 *''

Nereis grayi ''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 ...

'' Pettibone, 1956 *''

Nereis grubei ''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 ...

'' (Kinberg, 1866) *''

Nereis guangdongensis ''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 ...

'' Wu, Sun & Yang, 1981 *''

Nereis heterocirrata ''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 ...

'' Treadwell, 1931 *''

Nereis heteromorpha ''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 ...

'' (Horst, 1924) *'' Nereis heterophylla'' Chamisso & Eysenhardt, 1821 *''

Nereis heteropoda ''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 ...

'' Chamisso & Eysenhardt, 1821 *''

Nereis holochaeta ''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 fo ...

'' Intes & Le Loeuff, 1975 *'' Nereis homogompha'' Rullier, 1972 *'' Nereis huanghaiensis'' Wu, Sun & Yang, 1981 *'' Nereis icosiensis'' Gravier & Dantan, 1928 *''

Nereis ignota ''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 o ...

'' Quatrefages, 1866 *''

Nereis imajimai ''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 ...

'' Leon-Gonzalez & Diaz-Castaneda, 1998 *'' Nereis imbecillis'' Grube, 1840 *''

Nereis imperfecta ''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 ...

'' Gravier & Dantan, 1936 *'' Nereis inflata'' Leon-Gonzalez & Solis-Weiss, 2001 *''

Nereis iris ''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 ...

'' Stimpson, 1854 *''

Nereis irrorata ''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 fo ...

'' *''

Nereis izukai ''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 ...

'' Okuda, 1939 *''

Nereis jacksoni ''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 fo ...

'' Kinberg, 1866 *''

Nereis krebsii ''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 o ...

'' Grube, 1857 *'' Nereis lamellosa'' Ehlers, 1864 *''

Nereis languida ''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 ...

'' Kinberg, 1866 *'' Nereis latescens'' Chamberlin, 1919 *''

Nereis leuca ''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 fo ...

'' Chamberlin, 1919 *''

Nereis ligulata ''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 fo ...

'' Hilbig, 1992 *''

Nereis lineata ''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 ...

'' delle Chiaje, 1827 *''

Nereis lingulata ''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 ...

'' Hilbig, 1992 *'' Nereis lithothamnica'' Annenkova, 1938 *'' Nereis litoralis'' Leach ''in'' Johnston, 1865 *'' Nereis longilingulis'' Monro, 1937 *''

Nereis longior ''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 ...

'' Chlebovitsch & Wu, 1962 *''

Nereis longisetis ''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 ...

'' McIntosh, 1885 *''

Nereis macropis ''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 ...

'' Ehlers, 1920 *''

Nereis maculosa ''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 ...

'' Renier, 1804 *''

Nereis madreporae ''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 fo ...

'' *''

Nereis margarita ''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 ...

'' Montagu, 1804 *''

Nereis marginata ''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 ...

'' Grube, 1857 *'' Nereis mariae'' Holly, 1935 *''

Nereis marioni ''Nereis'' is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are ocean, marine. ''Nereis'' possess setae and parapodia for locomotion and gas exchange. They may have two types of setae, which are ...

'' Audouin & Milne-Edwards, 1833 *'' Nereis maroccensis'' Amoureux, 1976 *''

Nereis maxillodentata ''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 ...

'' Hutchings & Turvey, 1982 *''

Nereis mediator ''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 ...

'' Chamberlin, 1918 *''

Nereis mendocinana ''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 o ...

'' Chamberlin, 1919 *'' Nereis microcera'' Quatrefages, 1866 *''

Nereis minima ''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 ...

'' Lamarck, 1801 *''

Nereis mirabilis ''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 ...

'' Kinberg, 1866 *''

Nereis mollis ''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 ...

'' Linnaeus, 1761 *''

Nereis monoceros ''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 fo ...

'' Dalyell, 1853 *''

Nereis monroi ''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 ...

'' Reish, 1953 *'' Nereis moroccensis'' Amoureux, 1976 *''

Nereis mortenseni ''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 ...

'' Augener, 1923 *''

Nereis multignatha ''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 ...

'' Imajima & Hartman, 1964 *''

Nereis myersi ''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 ...

'' Holly, 1935 *''

Nereis nancaurica ''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 ...

'' Ehlers, 1904 *''

Nereis nanciae ''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 ...

'' Day, 1949 *''

Nereis natans ''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 ...

'' Hartman, 1936 *'' Nereis neoneanthes'' Hartman, 1948 *''

Nereis neozealanica ''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 ...

'' Knox, 1951 *'' Nereis nichollsi'' Kott, 1951 *''

Nereis nigripes ''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 ...

'' Ehlers, 1868 *''

Nereis noctiluca ''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 fo ...

'' Linnaeus, 1761 *''

Nereis nouhuysi ''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 fo ...

'' Horst, 1918 *''

Nereis obscura ''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 fo ...

'' Gravier & Dantan, 1934 *''

Nereis ochotica ''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 fo ...

'' Grube, 1850 *''

Nereis ockenii ''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 ...

'' delle Chiaje, 1828 *''

Nereis octentaculata ''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 fo ...

'' Montagu, 1804 *''

Nereis oligohalina ''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 fo ...

'' (Rioja, 1946) *'' Nereis onychophora'' Horst, 1918 *''

Nereis otto ''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 ...

'' delle Chiaje, 1828 *''

Nereis ovarius ''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 fo ...

'' Read, 1980 *''

Nereis pachychaeta ''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 ...

'' Fauvel, 1919 *''

Nereis panamensis ''Nereis'' is a genus of polychaete worms in the family Nereididae. It comprises many species, most of which are ocean, marine. ''Nereis'' possess setae and parapodia for locomotion and gas exchange. They may have two types of setae, which are f ...

'' Fauchald, 1977 *''

Nereis pannosa ''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 fo ...

'' (Grube, 1857) *'' Nereis parabifida'' Hutchings & Turvey, 1982 *''

Nereis paucignatha ''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 ...

'' Hartman, 1940 *''

Nereis paulina ''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 ...

'' Grube, 1868 *'' Nereis pectinata'' Dalyell, 1853 *''

Nereis pelagica ''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 o ...

'' Linnaeus, 1758 *'' Nereis perivisceralis'' Claparède, 1868 *''

Nereis peroniensis ''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 ...

'' Kott, 1951 *''

Nereis persica ''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 o ...

'' Fauvel, 1911 *''

Nereis peruviana ''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 ...

'' Ehlers, 1868 *''

Nereis phosphorescens ''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 ...

'' Quatrefages, 1866 *'' Nereis phyllophorus'' Ross, 1819 *'' Nereis pinnata'' Müller, 1776 *''

Nereis piscesae ''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 ...

'' Blake & Hillbig, 1990 *'' Nereis posidoniae'' Hutchings & Rainer, 1979 *''

Nereis procera ''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 ...

'' Ehlers, 1868 *'' Nereis profundi'' Kirkegaard, 1956 *'' Nereis pseudomoniliformis'' Santos & Lana, 2003 *''

Nereis pulsatoria ''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 ...

'' (Savigny, 1822) *'' Nereis punctata'' Dalyell, 1853 *'' Nereis puncturata'' Grube, 1857 *'' Nereis quadricorna'' delle Chiaje, 1841 *'' Nereis quoyii'' Quatrefages, 1866 *'' Nereis radiata'' Viviani ''in'' Grube, 1850 *''

Nereis ranzani ''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 ...

'' delle Chiaje, 1828 *''

Nereis rava ''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 ...

'' Ehlers, 1864 *''

Nereis regia ''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 ...

'' Quatrefages, 1866 *''

Nereis rigida ''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 ...

'' Grube, 1857 *''

Nereis riisei ''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 ...

'' Grube, 1857 *''

Nereis robusta ''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 ...

'' Quatrefages, 1866 *''

Nereis rufa ''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 ...

'' Pennant, 1812 *'' Nereis rupta'' Quatrefages, 1866 *''

Nereis sandersi ''Nereis sandersi'' is a species of sandworm in the family Nereididae. References Phyllodocida Articles created by Qbugbot Insects described in 1985 {{Annelid-stub ...

'' Blake, 1985 *'' Nereis sarsoensis'' Hartmann-Schröder, 1960 *''

Nereis schmardae ''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 ...

'' Hartmann-Schröder, 1962 *'' Nereis scolopendrina'' Blainville, 1825 *''

Nereis scolopendroides ''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 ...

'' Hansen, 1882 *'' Nereis segrex'' Chamberlin, 1919 *'' Nereis semperiana'' (Grube, 1878) *'' Nereis serrata'' Santos & Lana, 2003 *''

Nereis sertularias ''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 ...

'' *''

Nereis sieboldii ''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 fo ...

'' Grube, 1873 *'' Nereis sinensis'' Wu, Sun & Yang, 1981 *'' Nereis singularis'' Wesenberg-Lund, 1949 *''

Nereis spinigera ''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 ...

'' Hutchings & Turvey, 1982 *''

Nereis splendida ''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 ...

'' Blainville, 1825 *''

'' Grube, 1840 *'' Nereis sumbawaensis'' (Horst, 1924) *'' Nereis surugaense'' Imajima, 1972 *'' Nereis talehsapensis'' Fauvel, 1932 *'' Nereis tenuipalpa'' Pflugfelder, 1933 *''

Nereis tenuis ''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 ...

'' Webster & Benedict, 1884 *''

Nereis tethycola ''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 ...

'' delle Chiaje, 1831 *''

Nereis thompsoni ''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 fo ...

'' (Kott, 1951) *''

Nereis thysanota ''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 o ...

'' Ehlers, 1920 *''

Nereis tiedmanni ''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 ...

'' delle Chiaje, 1841 *'' Nereis tigrina'' Zachs, 1933 *''

Nereis toporoki ''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 ...

'' Khlebovich, 1996 *'' Nereis torta'' Fauvel, 1934 *'' Nereis translucens'' Quatrefages, 1866 *''

Nereis triangularis ''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 fo ...

'' Hutchings & Turvey, 1982 *'' Nereis tydemani'' (Horst, 1924) *''

Nereis uncia ''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 fo ...

'' Holly, 1935 *'' Nereis usticensis'' Cantone, Catalono & Badalamenti, 2003 *'' Nereis variegata'' Renier, 1804 *'' Nereis veleronis'' Hartman, 1940 *'' Nereis ventilabrum'' Quatrefages, 1866 *''

Nereis vexillosa ''Nereis vexillosa'' (common name: mussel worm) belongs to the phylum Annelida, a group known as the segmented worms. It is generally iridescent green and can reach 30 cm in length. It can be distinguished by the size of the upper ligules o ...

'' Grube, 1851 *'' Nereis victoriana'' Augener, 1918 *''

Nereis villosa ''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 ...

'' Dalyell, 1853 *''

Nereis vitiensis ''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 ...

'' Grube, 1870 *'' Nereis willey'' Day, 1934 *'' Nereis zhongshaensis'' Shen & Sun ''in'' Sun, Wu & Shen, 1978 *''

Nereis zonata ''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 ...

'' Malmgren, 1867

References

{{Taxonbar, from=Q135309 Polychaete genera Phyllodocida