Bloodworm Glycera

List of annelid families describes the taxa relationships in the phylum Annelida, which contains more than 17,000 extant species including ragworms, earthworms, and leeches.^[1]

Class Polychaeta

Hesionidae Eurythoe complanata

Opheliidae Eunice aphroditois

Tomopteriskils

Hesionidae Oxydromus pugettensis

Nephtys hombergii

Nerididae Alitta succinea

Palpata

Sub-class Errantia

Order Amphinomida

- Family Amphinomidae Savigny in Lamarck, 1818
- Family Euphrosinidae Williams, 1851

Order Eunicida

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

Order Phyllodocida

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

Incertae sedis

- Family Aberrantidae Wolf, 1987
- Family Nerillidae Levinsen, 1883
- Family Spintheridae Johnston, 1865 ^[2]
Canalipalpata

Scolecida

Capitellidae Capitella capitata

Opheliidae Euzonus flabelligerus

Family Aeolosomatidae
Family Arenicolidae
Family Capitellidae
Family Cossuridae
Family Maldanidae
Family Opheliidae
Family Orbiniidae
Family Paraonidae
Family Parergodrilidae
Family Potamodrilidae
Family Psammodrilidae
Family Questidae
Family Scalibregmatidae

Echiura

Bonellia viridis

Order Echiuroidea

Suborder Bonelliida
- Family Bonelliidae
- Family Ikedidae
Suborder Echiurida
- Family Echiuridae
- Family Thalassematidae
- Family Urechidae

Class Clitellata

Hirudo medicinalis leech

- - Order Branchiobdellida
Subclass Hirudinea (Leech)
- Infraclass Acanthobdellidea
- Infraclass Euhirudinea
  - Order Arhynchobdellida
    - Suborder Erpobdelliformes
      - Family Erpobdellidae Blanchard, 1894
      - Family Gastrostomobdellidae Richardson, 1971
      - Family Orobdellidae Nakano, Ramlah & Hikida, 2012
      - Family Salifidae Johansson, 1910
    - Suborder Hirudiniformes
      - Family Cylicobdellidae
      - Family Haemadipsidae
      - Family Haemopidae
      - Family Hirudinidae
      - Family Semiscolecidae
      - Family Xerobdellidae
  - Order Rhynchobdellida
    - - Family Glossiphoniidae
      - Family Ozobranchidae (disputed)
      - Family Piscicolidae

Class Machaeridia †

Family †Plumulitidae
Family †Turrilepadidae
Family †Lepidocoleidae

Subphylum Sipuncula

Class Phascolosomatidea
- Order Aspidosiphoniformes
  - Family Aspidosiphonidae
- Order Phascolosomatiformes
  - Family Phascolosomatidae
Class Sipunculidea
- Order Golfingiiformes
  - Family Golfingiidae
  - Family Phascolionidae
  - Family Themistidae
- Order Sipunculiformes
  - Family Sipunculidae

References

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