Errantia

Errantians
Polychaete errantian marine worm, 10x polarized light
Scientific classification
Kingdom:	Animalia
Phylum:	Annelida
Class:	Polychaeta
Subclass:	Errantia
Orders
Amphinomida Eunicida Phyllodocida Basal or incertae sedis

Errantia, occasionally Aciculata, is a subclass of polychaete worms. These worms are found worldwide in marine environments and brackish water.

Orders

Order Amphinomida

• Amphinomidae Savigny in Lamarck, 1818
• Euphrosinidae Williams, 1851

Order Eunicida

• Dorvilleidae Chamberlin, 1919
• Eunicidae Berthold, 1827
• Hartmaniellidae Imajima, 1977
• Lumbrineridae Schmarda, 1861
• Oenonidae Kinberg, 1865
• Onuphidae Kinberg, 1865

Order Phyllodocida

• Acoetidae Kinberg, 1856
• Alciopidae Ehlers, 1864
• Aphroditidae Malmgren, 1867
• Chrysopetalidae Ehlers, 1864
• Eulepethidae Chamberlin, 1919
• Glyceridae Grube, 1850
• Goniadidae Kinberg, 1866
• Hesionidae Grube, 1850
• Ichthyotomidae Eisig, 1906
• Iospilidae Bergstroem, 1914
• Lacydoniida Bergstroem, 1914
• Lopadorhynchidae Claparede, 1868
• Myzostomidae Benham, 1896
• Nautiliniellidae Miura and Laubier, 1990
• Nephtyidae Grube, 1850
• Nereididae Johnston, 1865
• Paralacydoniidae Pettibone, 1963
• Pholoidae Kinberg, 1858
• Phyllodocidae Oersted, 1843
• Pilargidae Saint-Joseph, 1899
• Pisionidae Southern, 1914
• Polynoidae Malmgren, 1867
• Pontodoridae Bergstroem, 1914
• Sigalionidae Malmgren, 1867
• Sphaerodoridae Malmgren, 1867
• Syllidae Grube, 1850
• Tomopteridae Johnston, 1865
• Typhloscolecidae Uljanin, 1878

Incertae sedis

• Aberrantidae Wolf, 1987
• Nerillidae Levinsen, 1883
• Spintheridae Johnston, 1865