Megascolecidae zijn een familie van ringwormen uit de orde van de Crassiclitellata.
Geslachten Aceeca Blakemore, 2000 Amphimiximus Blakemore, 2000 Amynthas Kinberg, 1866 Anisochaeta Beddard, 1890 Anisogaster Blakemore, 2000 Aporodrilus Blakemore, 2000 Archipheretima Michaelsen, 1928 Austrohoplochaetella Jamieson, 1971 Balanta Michaelsen, 1898 Begemius Easton, 1982 Borgesia James, 1991 Caecadrilus Blakemore, 2000 Chetcodrilus Fender & McKey-Fender, 1990 Chilota Michaelsen, 1899 Comarodrilus Stephenson, 1915 Cryptodrilus Fletcher, 1886 Deodrilus Beddard, 1890 Didymogaster Fletcher, 1886 Digaster Perrier, 1872 Diporochaeta Beddard, 1890 Eastoniella Jamieson, 1977 Exxus Gates, 1959 Fletcherodrilus Michaelsen, 1891 Gastrodrilus Blakemore, 2000 Gemascolex Edmonds & Jamieson, 1973 Graliophilus Jamieson, 1971 Hegesipyle Kinberg, 1867 Heteroporodrilus Jamieson, 1970 Hiatidrilus Jamieson, 1994 Hickmaniella Jamieson, 1974 Kanchuria Julka, 1988 Kaxdrilus Fragoso & Rojas, 1994 Lampito Kinberg, 1867 Larsonidrilus James, 1993 Mahbenus Bourne, 1894 Mayadrilus Fragoso & Rojas, 1994 Megascolex Templeton, 1844 Megascolides McCoy, 1878 Metapheretima Michaelsen, 1928 Metaphire Sims & Easton, 1972 Nelloscolex Gates, 1939 Nexogaster Blakemore & Kingston, 1997 Nitocris Kinberg, 1867 Notoscolex Fletcher, 1886 Oreoscolex Jamieson, 1973 Parapheretima Cognetti de Martiis, 1912 Paraplutellus Jamieson, 1972 Perichaeta Schmarda, 1861 Pericryptodrilus Jamieson, 1977 Perionychella Michaelsen, 1907 Perionyx Perrier, 1872 Perissogaster Fletcher, 1887 Pheretima Kinberg, 1866 Pithemera Sims & Easton, 1972 Planapheretima Michaelsen, 1934 Pleionogaster Michaelsen, 1892 Pleurochaeta Beddard, 1883 Plionogaster Michaelsen, 1900 Polypheretima Michaelsen, 1934 Pontodrilus Perrier, 1874 Propheretima Jamieson, 1995 Protozapotecia James, 1993 Provescus Blakemore, 2000 Pseudocryptodrilus Jamieson, 1972 Pseudonotoscolex Jamieson, 1971 Retrovescus Blakemore, 1998 Sebastianus Blakemore, 1997 Simsia Jamieson, 1972 Spenceriella Michaelsen, 1907 Tassiedrilus Blakemore, 2000 Terrisswalkerius Jamieson, 1994 Tokea Benham, 1904 Tonoscolex Gates, 1933 Trichaeta Spencer, 1900 Trinephrus Beddard, 1895 Troyia Jamieson, 1977 Vesiculodrilus Jamieson, 1973 Woodwardiella Stephenson, 1925 Zacharius Blakemore, 1997 Zapatadrilus James, 1991
Synoniemen Amyntas ⇒ Amynthas Kinberg, 1866 Rhodopis Kinberg, 1866 ⇒ Metaphire Sims & Easton, 1972 Woodwardia Michaelsen, 1907 ⇒ Woodwardiella Stephenson, 1925