Families: Ailoscolecidae - Acanthodrilidae - Almidae - Biwadrilidae - Criodrilidae - Eudrilidae - Glossoscolecidae - Haplotaxidae - Hormogastridae - Komarekionidae - Kynotidae - Lumbricidae - Lutodrilidae - Megascolecidae - Microchaetidae - Moniligastridae - Ocnerodrilidae - Rhinodrilidae - Sparganophilidae - Syngenodrilidae - Tiguassuidae - Tritogeniidae - Tumakidae

Ailoscolecidae (Bouché, 1969)

Ailoscolex (Bouché, 1969)

• Ailoscolex lacteospumosus (Bouché, 1969)

Biwadrilidae (Vejdovsky, 1884)

Biwadrilus (Brinkhurst and Jamieson, 1971)

• Biwadrilus bathybates (Stephenson, 1917)

Criodrilidae (Vejdovsky, 1884)

Criodrilus (Hoffmeister, 1845)

• Criodrilus ghaniae (Qiu and Bouche, 1998)
• Criodrilus iheringi (Michaelsen, 1895)
• Criodrilus lacuum (Hoffmeister, 1845)
• Criodrilus miyashitai (Nagase and Nomura, 1937)
• Criodrilus ochridensis (Georgevitch, 1950)
• Criodrilus officeri (Michaelsen, 1895)

Komarekionidae (Gates, 1974)

Komarekiona (Gates, 1974)

• Komarekiona eatoni (Gates, 1974)

Lutodrilidae (McMahan, 1976)

Lutodrilus (McMahan, 1976)

• Lutodrilus multivesiculatus (McMahan, 1976)

Sparganophilidae (Michaelsen, 1918)

Sparganophilus (Benham, 1892)

• Sparganophilus gatesi (Reynolds, 1980)
• Sparganophilus helenae (Reynolds, 1980)
• Sparganophilus komareki (Reynolds, 1980)
• Sparganophilus kristinae (Reynolds, 1980)
• Sparganophilus langi (Qiu and Bouché, 1998)
• Sparganophilus meansi (Reynolds, 1980)
• Sparganophilus pearsei (Reynolds, 1975)
• Sparganophilus smithi (Eisen, 1896)
• Sparganophilus sonomae (Eisen, 1896)
• Sparganophilus tamesis (Benham, 1892)
• Sparganophilus tennesseensis (Reynolds, 1977)
• Sparganophilus wilmae (Reynolds, 1980)

Syngenodrilidae (Smith and Green, 1919)

Syngenodrilus (Smith and Green, 1919)

• Syngenodrilus lamuensis (Smith and Green, 1919)

Tiguassuidae (Brinkhurst, 1988)

Tiguassu (Righi, Ayres and Bittencourt, 1978)

• Tiguassu reginae (Righi, Ayres and Bittencourt, 1978)

Tumakidae (Righi, 1995)

Tumak (Righi, 1996)

• Tumak hammeni (Righi, 1995)

Digitibranchus (Levinsen, 1889)

• Digitibranchus aegyptiacus (Levinsen, 1889)
• Digitibranchus niloticus (Levinsen, 1889)

Geoscolex (Leuckart, 1841)

• Geoscolex maximus (Leuckart, 1841)

Irewiae

• Irewiae capitmagnus (Drachenberg, 1992)

Siphonogaster

• Siphonogaster aegyptiacus (Levinsen, 1889)

Tykonus (Michaelsen, 1892)

• Tykonus perigrinus (Cuenot, 1898)
• Tykonus wiengreeni (Cuenot, 1898)