Acanthodrilus Perrier, 1872 (basis of record)
Achaeta maorica Benham, 1903 (basis of record)
Achaeta neotropica Černosvitov, 1937 (basis of record)
Achaeta singularis Schmelz, 2008 (basis of record)
Adenodrilus Čekanovskaya, 1959 (basis of record)
Adenodrilus denticulatus Čekanovskaja, 1959 (basis of record)
Agriodrilus Michaelsen, 1905 (basis of record)
Agriodrilus vermivorus Michaelsen, 1905 (basis of record)
Aktedrilus ruffoi Sambugar, Giani & Martínez-Ansemil, 1999 (basis of record)
Alexandrovia Hrabĕ, 1962 (basis of record)
Alexandrovia onegensis Hrabĕ, 1962 accepted as Alexandrovia ringulata (Sokolskaya, 1961) (basis of record)
Alexandrovia ringulata (Sokolskaya, 1961) (basis of record)
Allodero Sperber, 1948 (basis of record)
Allodero bauchiensis (Stephenson, 1930) (basis of record)
Allodero floridana (Harman, 1971) (basis of record)
Allodero hylae (Goodchild, 1951) (basis of record)
Allodero litoria (Pinder, Hill & Green, 1998) (basis of record)
Allodero lutzi (Michaelsen, 1926) (basis of record)
Allodero malayana (Stephenson, 1931) (basis of record)
Allodero prosetosa Liang, 1964 accepted as Bratislavia prosetosa (Liang, 1964) (basis of record)
Allolobophora darwini Ribaucourt, 1896 (basis of record)
Allonais Sperber, 1948 (basis of record)
Allonais arieli Gluzman, 1990 (basis of record)
Allonais chelata (Marcus, 1944) (basis of record)
Allonais gwaliorensis (Stephenson, 1920) (basis of record)
Allonais inaequalis (Stephenson, 1911) (basis of record)
Allonais lairdi Naidu, 1965 (basis of record)
Allonais paraguayensis (Michaelsen, 1905) (basis of record)
Allonais pectinata (Stephenson, 1910) (basis of record)
Allonais ranauana (Boldt in Michaelsen & Boldt, 1932) (basis of record)
Allonais rayalaseemensis Naidu, 1962 (basis of record)
Alluroides Beddard, 1894 (basis of record)
Alluroides brinkhursti Jamieson, 1968 (basis of record)
Alluroides pordagei Beddard, 1894 (basis of record)
Alluroides ruwenzoriensis Brinkhurst, 1964 (basis of record)
Alluroides tanganyikae Beddard, 1906 (basis of record)
Alluroididae Michaelsen, 1900 (basis of record)
Alma Grube, 1855 (basis of record)
Alma basongonis Michaelsen, 1935 (basis of record)
Alma emini (Michaelsen, 1892) (basis of record)
Alma eubranchiata Michaelsen, 1910 (basis of record)
Alma kamerunensis Michaelsen, 1915 (basis of record)
Alma machadoi Omodeo, 1973 (basis of record)
Alma millsoni (Beddard, 1891) (basis of record)
Alma multisetosa Michaelsen, 1915 (basis of record)
Alma nasuta Michaelsen, 1935 (basis of record)
Alma nilotica Grube, 1855 (basis of record)
Alma pooliana Michaelsen, 1913 (basis of record)
Alma stuhlmanni (Michaelsen, 1892) (basis of record)
Alma tazelaari Jamieson, 1971 (basis of record)
Alma togoensis Michaelsen, 1915 (basis of record)
Alma ubangiana Michaelsen, 1915 (basis of record)
Almidae Duboscq, 1902 (basis of record)
Alminae Duboscq, 1902 (basis of record)
Alphadrilus Brinkhurst, 1988 (basis of record)
Alphadrilus smithii (Beddard, 1888) (basis of record)
Altmanella Fend, 2009 (basis of record)
Altmanella freidris (Cook, 1966) (basis of record)
Altmanella idahoensis Fend, 2009 (basis of record)
Altmanella lenati Fend, 2009 (basis of record)
Amerigodrilus Holmquist, 1985 (basis of record)
Amerigodrilus chacoensis (Stephenson, 1931) (basis of record)
Amphichaeta aliena Semernoy, 2004 (basis of record)
Amphichaeta altera Semernoy, 2004 (basis of record)
Amphichaeta americana Chen, 1944 (basis of record)
Amphichaeta annae Semernoy, 2004 (basis of record)
Amphichaeta asiatica Liang, 1958 (basis of record)
Amphichaeta distincta Semernoy, 2004 (basis of record)
Amphichaeta labialia Semernoy, 2004 (basis of record)
Amphichaeta magna Sokolskaya, 1962 (basis of record)
Amphichaeta minima Semernoy, 2004 (basis of record)
Amphichaeta nana Semernoy, 2004 (basis of record)
Amphichaeta nikae Semernoy, 2004 (basis of record)
Amphichaeta raptisae (Chapman, 1981) (basis of record)
Amphichaeta rostrifera Akinschina, 1984 (basis of record)
Antipodrilus Brinkhurst & Jamieson, 1971 (basis of record)
Antipodrilus davidis (Benham, 1907) (basis of record)
Antipodrilus magelensis Brinkhurst, 1984 (basis of record)
Antipodrilus multiseta Brinkhurst & Fulton, 1979 (basis of record)
Antipodrilus plectilus Brinkhurst & Fulton, 1979 (basis of record)
Antipodrilus timmsi Brinkhurst, 1971 (basis of record)
Aporrectodea caliginosa (Savigny in Cuvier, 1826) (basis of record)
Aporrectodea dubiosa (Örley, 1881) (basis of record)
Aporrectodea limicola (Michaelsen, 1890) (basis of record)
Arcteonais Piguet, 1928 (basis of record)
Arcteonais lomondi (Martin, 1907) (basis of record)
Areco Righi, Ayres & Bittencourt, 1978 (basis of record)
Areco reco Righi, Ayres & Bittencourt, 1978 (basis of record)
Aspidodrilus Baylis, 1914 (basis of record)
Aulodrilus acutus Ohtaka & Usman, 1997 (basis of record)
Aulodrilus adetus (Ev. Du Bois-Reymond Marcus, 1949) (basis of record)
Aulodrilus americanus Brinkhurst & Cook, 1966 (basis of record)
Aulodrilus apeniatus Cui & Wang, 2009 (basis of record)
Aulodrilus cernosvitovi Du Bois-Reymond Marcus, 1947 (basis of record)
Aulodrilus limnobius Bretscher, 1899 (basis of record)
Aulodrilus paucichaeta Brinkhurst & Barbour, 1985 (basis of record)
Aulodrilus pectinatus Aiyer, 1928 (basis of record)
Aulodrilus pigueti Kowalewski, 1914 (basis of record)
Aulophorus africanus Michaelsen, 1914 (basis of record)
Aulophorus barbatus Righi & Hamoui, 2002 (basis of record)