of generally marine annelid worms, commonly called bristle worms or polychaetes (/ˈpɒlɪˌkiːts/). Each body segment has a pair of fleshy protrusions called...

Sabella is a genus of marine polychaete worm. Members of this genus are filter feeders and there are about ninety species. They live in tubes made of mud...

for locomotion. Most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like...

Neanthes is a genus of polychaetes belonging to the family Nereididae. The genus has almost cosmopolitan distribution. Species in this genus include:...

Fabricia is a genus of polychaetes belonging to the family Fabriciidae. The genus has almost cosmopolitan distribution. Species: Fabricia acuseta Banse...

Chone is a genus of polychaetes belonging to the family Sabellidae. The genus has cosmopolitan distribution. Species: Chone aurantiaca (Johnson, 1901)...

centimeters (9.81 ft) in length, making it the longest known member of the polychaete class. Despite these great lengths, the worms are slim, with the body...

Lanassa is a genus of annelids belonging to the family Terebellidae. The genus has almost cosmopolitan distribution. Species: Lanassa benthaliana McIntosh...

Sternaspis is a genus of annelids belonging to the family Sternaspidae. The genus has cosmopolitan distribution. Species: Sternaspis affinis Stimpson,...

Nicon is a genus of polychaetes belonging to the family Nereididae. The species of this genus are found in Southern Hemisphere. Species: Nicon abyssalis...

Eurythoe is a genus of polychaetes belonging to the family Amphinomidae. The genus has almost cosmopolitan distribution. The following species are recognised:...

Biomineralising polychaetes are polychaetes that produce minerals to harden or stiffen their own tissues (biomineralize). The most important biomineralizing...

Euphrosine is a genus of polychaetes belonging to the family Euphrosinidae. The genus lives in marine benthic environments and has cosmopolitan distribution...

Vanadis is a genus of polychaetes belonging to the family Phyllodocidae. The genus has cosmopolitan distribution. It is notable for representing a fourth...

Acanthopale is a genus of polychaetes belonging to the family Chrysopetalidae. The only species is Acanthopale perkinsi. The species is found in Central...

Phylo is a genus of polychaetes belonging to the family Orbiniidae. The genus has cosmopolitan distribution. Species: Phylo capensis Day, 1961 Phylo felix...

Petta is a genus in the polychaete family Pectinariidae. There are currently eight recognized species in the genus Petta alissoni - Nogueira, Ribeiro,...

Chaetacanthus is a genus of polychaetes belonging to the family Polynoidae. The species of this genus are found in America. Species: Chaetacanthus barbatus...

Orseis is a genus of annelids belonging to the family Hesionidae. The species of this genus are found in America. Species: Orseis brevis Hartmann-Schröder...

Platynereis bicanaliculata is a species of marine polychaete worm in the family Nereididae. Platynereis bicanaliculata has been observed along the coasts...

Oxydromus is a genus of annelids belonging to the family Hesionidae. The genus has cosmopolitan distribution. Species: Oxydromus adorsosetosus (Hartmann-Schröder...

Epitoky is a process that occurs in many species of polychaete marine worms wherein a sexually immature worm (the atoke) is modified or transformed into...

Onuphis is a genus of polychaete belonging to the family Onuphidae. The genus has cosmopolitan distribution. Species: Onuphis affinis Hilbig, 1995 Onuphis...

Brada is a genus of polychaetes belonging to the family Flabelligeridae. The genus has cosmopolitan distribution. Species: Brada annenkovae Buzhinskaja...

anterior and posterior regeneration and other growth phenomena in Maldanid polychaetes". Journal of Experimental Zoology. 117: 1–13. doi:10.1002/jez.1401170102...

Silica pseudomorph after gypsum crystals and silicified serpulid polychaete tubes...

Glyceridae is a family of polychaete worms. They are commonly referred to as beak-thrower worms or bloodworms. They are bright red, segmented, aquatic...

Idanthyrsus is a genus of marine polychaete worms in the family Sabellariidae with 29 recognized species. Species in Idanthyrsus include: Idanthyrsus albigenus...

Armandia is a genus of polychaetes belonging to the family Opheliidae. The genus has cosmopolitan distribution. Species: Armandia agilis (Andrews, 1891)...

Aphrodita aculeata, the sea mouse, is a marine polychaete worm found in the North Atlantic, the North Sea, the Baltic Sea and the Mediterranean. The sea...