(Megascolecidae) (Megascolecidae) is a biological family of the class Clitellata and order Opisthopora.
Aceeca
Amphimiximus
Amynthas
Anisochaeta
Anisogogaster
Aporodrilus
Archipheretima
Arctiostrotus
Argilophilus
Austrohoplochaetella
Begemius
Caecadrilus
Chetcodrilus
Comarodrilus
Cryptodrilus
Dendropheretima
Deodrilus
Didymogaster
Digaster
Diporochaeta
Drilochaera
Driloleirus
Duplodicodrilus
Eastoniella
Fletcherodrilus
Gastrodrilus
Gemascolex
Geofdyneia
Graliophilus
Haereodrilus
Healesvillea
Heteroporodrilus
Hiatidrilus
Hickmaniella
Hypolimnus
Isarogoscolex
Kincaidodrilus
Lampito
Macnabodrilus
Megascolex
Megascolides
Metapheretima
Metaphire
Nelloscolex
Nephrallaxis
Nexogaster
Notoscolex
Oreoscolex
Paraplutellus
Pericryptodrilus
Perionychella
Perionyx
Perissogaster
Pheretima
Pithemera
Planapheretima
Pleionogaster
Plutelloides
Plutellus
Polypheretima
Pontodrilus
Propheretima
Provescus
Pseudocryptodrilus
Pseudonotoscolex
Retrovescus
Scolecoidea
Sebastianus
Simsia
Spenceriella
Tassiedrilus
Terrisswalkerius
Tonoscolex
Torresiella
Toutellus
Troyia
Vesiculodrilus
Woodwardiella
Zacharius
Acanthodrilidae
Ailoscolecidae
Alluroididae
Almidae
Biwadrilidae
Criodrilidae
Eudrilidae
Glossoscolecidae
Hormogastridae
Komarekionidae
Kynotidae
Lumbricidae
Lutodrilidae
Megascolecidae
Microchaetidae
Ocnerodrilidae
Rhinodrilidae
Sparganophilidae
Syngenodrilidae
Tritogeniidae
Tumakidae