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

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:...

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...

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...

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

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

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

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

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

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

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...

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...

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

A scolecodont is the jaw of a polychaete annelid, a common type of fossil-producing segmented worm useful in invertebrate paleontology. Scolecodonts are...

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

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

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

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...

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

populations of the clam worm dissipate. Alitta succinea is a freeswimming polychaete, scavenging on the bottom of shallow marine waters. It feeds on other...

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

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...

Amphitrite is a genus of polychaetes belonging to the family Terebellidae. The genus has cosmopolitan distribution. The World Register of Marine Species...

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

the algal turf areas of rocky reefs. This snail feeds on cirratulinid polychaete worms. The toxins from these worms become incorporated into the snail's...

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

midge (family Chironomidae) containing hemoglobin Glycera (annelid), a polychaete often used for fishing bait Species of the Polychaeta subclass Scolecida...

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