''Nereis'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of polychaete

worm Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and no eyes (though not always). Worms vary in size from microscopic to over in length for marine polychaete wor ...

s 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 In biology, setae (singular seta ; from the Latin word for "bristle") are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Annelid setae are stiff bristles present on the body. Th ...

and

parapodia In invertebrates, the term parapodium ( Gr. ''para'', beyond or beside + ''podia'', feet; plural: parapodia) refers to lateral outgrowths or protrusions from the body. Parapodia are predominantly found in annelids, where they are paired, unjointed ...

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

osmoconformer Osmoconformers are marine organisms that maintain an internal environment which is isotonic to their external environment. This means that the osmotic pressure of the organism's cells is equal to the osmotic pressure of their surrounding environm ...

s. 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 A zygote (, ) is a eukaryotic cell formed by a fertilization event between two gametes. The zygote's genome is a combination of the DNA in each gamete, and contains all of the genetic information of a new individual organism. In multicellula ...

, Nereids form a larval stage which is similar to that of molluscs – i.e. a trochophore

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

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'' 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'' Wilson, 1985 *'' Nereis arenaceodonta'' *'' Nereis arroyensis'' Treadwell, 1901 *'' Nereis atlantica'' McIntosh, 1885 *'' Nereis augeneri'' Gravier & Dantan, 1934 *'' Nereis badiotorquata'' (Grube, 1878) *'' Nereis baliensis'' (Horst, 1924) *'' Nereis baolingi'' Leon-Gonzalez & Solis-Weiss, 2000 *'' Nereis batjanensis'' (Horst, 1924) *'' Nereis bifida'' 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'' Renier, 1804 *'' Nereis callaona'' (Grube, 1857) *'' Nereis caparti'' Fauvel, 1953 *'' Nereis casoae'' 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'' Blanchard ''in'' Gay, 1849 *'' Nereis chrysocephala'' Pallas, 1788 *'' Nereis cirrhigera'' 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'' 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'' delle Chiaje, 1822 *'' Nereis cuprea'' (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'' 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'' (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 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'' 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'' 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'' 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'' 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'' 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'' 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'' Stimpson, 1854 *'' Nereis irrorata'' *''

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'' 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'' Kinberg, 1866 *'' Nereis latescens'' Chamberlin, 1919 *'' Nereis leuca'' Chamberlin, 1919 *'' Nereis ligulata'' 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'' 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'' 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 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'' Audouin & Milne-Edwards, 1833 *'' Nereis maroccensis'' Amoureux, 1976 *'' Nereis maxillodentata'' Hutchings & Turvey, 1982 *'' Nereis mediator'' 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'' 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'' 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'' Imajima & Hartman, 1964 *'' Nereis myersi'' Holly, 1935 *'' Nereis nancaurica'' 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'' Linnaeus, 1761 *'' Nereis nouhuysi'' Horst, 1918 *'' Nereis obscura'' Gravier & Dantan, 1934 *'' Nereis ochotica'' 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'' Montagu, 1804 *'' Nereis oligohalina'' (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'' Read, 1980 *'' Nereis pachychaeta'' 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'' (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'' 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'' 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'' 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'' 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 sieboldii'' 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'' (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'' Hutchings & Turvey, 1982 *'' Nereis tydemani'' (Horst, 1924) *'' Nereis uncia'' Holly, 1935 *'' Nereis usticensis'' Cantone, Catalono & Badalamenti, 2003 *'' Nereis variegata'' Renier, 1804 *'' Nereis veleronis'' Hartman, 1940 *'' Nereis ventilabrum'' Quatrefages, 1866 *'' Nereis vexillosa'' 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'' 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