IRMNG Taxon list
Abessebdella Richardson, 1975 accepted as Chtonobdella Grube, 1866
Abranchus Johansson, 1896 accepted as Oceanobdella Caballero, 1956
Abranchus blenni Knight-Jones, 1940 accepted as Oceanobdella blenni (Knight-Jones, 1940)
Abranchus brunnea Johansson, 1896 accepted as Heptacyclus brunneus (Johansson, 1896)
Abranchus microstoma Johansson, 1896 accepted as Oceanobdella microstoma (Johansson, 1896)
Absyrtus Rafinesque, 1815 (unaccepted > nomen nudum )
Abyssidrilus Erséus, 1992
Abyssidrilus altoides Erséus, 1992
Abyssidrilus altus (Erséus, 1980)
Abyssidrilus hessleri Erséus, 1989
Abyssidrilus opulentus Erséus, 1992
Abyssidrilus potens Erséus, 1992
Abyssidrilus profundus (Cook, 1970)
Abyssidrilus remus (Erséus, 1979)
Abyssidrilus segonzaci (Erséus, 1986)
Abyssidrilus stilus (Erséus, 1986)
Acanthobdella Grube, 1851
Acanthobdella peledina Grube, 1851
Acanthobdellida
Acanthobdellidae Livanow, 1905
Acanthodrilidae Claus, 1990
Acanthodrilus Perrier, 1872
Acanthodrilus australis Michaelsen, 1889 accepted as Diplotrema australis (Michaelsen, 1889)
Acanthodrilus eremius Spencer, 1900
Acanthodrilus kermadecensis Lee, 1953
Acanthodrilus macleayi Fletcher, 1890 accepted as Diplotrema macleayi (Fletcher, 1890)
Acanthodrilus macquariensis Beddard, 1896 accepted as Microscolex macquariensis (Beddard, 1896)
Acanthodrilus schmardae Beddard, 1892 accepted as Diplotrema schmardae (Beddard, 1892)
Aceeca Blakemore, 2000
Aceeca dee Blakemore, 2000
Acestus Leidy, 1851 (uncertain )
Achaeta Vejdovský, 1878
Achaeta bohemica (Vejdovsky, 1879)
Achaeta camerani (Cognetti, 1899)
Achaeta eiseni Vejdovsky, 1877
Achaeta littoralis Lasserre, 1968
Achaeta maorica Benham, 1903
Acipenserobdella Epstein, 1969
Acrabdella Harding, 1931 accepted as Scaptobdella Blanchard, 1897
Acritobdella Ringuelet, 1978 (uncertain )
Actinobdella Moore, 1901
Actinobdella annectens Moore, 1906
Actinobdella inequiannulata Moore, 1901
Actinobdella magnidisca (Moore, 1938)
Actinobdella pediculata (Hemingway, 1908)
Actinobdella triannulata Moore, 1924 accepted as Actinobdella inequiannulata Moore, 1901
Adaetobdella Ringuelet, 1978 (uncertain )
Adelodriloides Cook, 1970 accepted as Adelodrilus Cook, 1969
Adelodriloides borceai Hrabě, 1973 accepted as Adelodrilus borceai (Hrabě, 1973)
Adelodriloides kiselevi Finogenova, 1972 accepted as Adelodrilus kiselevi (Finogenova, 1972)
Adelodriloides voraginus Cook, 1970 accepted as Adelodrilus voraginus (Cook, 1970)
Adelodrilus Cook, 1969
Adelodrilus anisosetosus Cook, 1969
Adelodrilus bacrionis Davis, 1985
Adelodrilus borceai (Hrabě, 1973)
Adelodrilus cooki Erséus, 1978
Adelodrilus correptus Erséus & Davis, 1984
Adelodrilus cristatus Erséus, 1983
Adelodrilus fimbriatus Erséus, 1983
Adelodrilus inopinatus Erséus & Davis, 1984
Adelodrilus kiselevi (Finogenova, 1972)
Adelodrilus magnithecatus Erséus, 1979
Adelodrilus multispinosus Erséus, 1979
Adelodrilus pilatus Erséus & Davis, 1984
Adelodrilus pusillus Erséus, 1978
Adelodrilus voraginus (Cook, 1970)
Adenobdella Leidy, 1885 (uncertain )
Adenodrilus Chekanovskaya, 1959 (uncertain ) [Family: Oligochaeta (awaiting allocation)]
Adenodrilus Holt, 1977 [Family: Bdellodrilidae]
Adenodrilus hemophagus Holt, 1977
Aegialina Friend, 1916 (uncertain )
Aemopis Quatrefages, 1852 accepted as Haemopis Savigny, 1820
Aestabdella Burreson, 1976
Aestabdella abditovesiculata (Moore, 1952)
Aestabdella fuqingensis Yang, 2002
Aestabdella leiostomi Burreson & Thoney, 1991
Aestabdella platycephali (Ingram, 1957)
Aetheobdella Moore, 1935
Aetheobdella hirudoides Moore, 1935
Afrogaster Csuzdi, 2010 †
Aganippa Rafinesque, 1815 (unaccepted > nomen nudum )
Agastrodrilus Omodeo & Vaillaud, 1967 (uncertain )
Agriodrilus Michaelsen, 1905
Agrotoreutus Segun, 1976 (uncertain )
Aicodrilus Righi, 1971
Ailoscolecidae
Ailoscolex Bouché, 1969
Ainudrilus Finogenova, 1982
Ainudrilus Wang & Erséus, 2003
Ainudrilus angustivasa Pinder & Halse, 2002
Ainudrilus billabongus (Brinkhurst, 1984)
Ainudrilus brendae Erséus, 1997
Ainudrilus fultoni (Brinkhurst, 1982)
Ainudrilus geminus Erséus, 1990
Ainudrilus gibsoni Erséus, 1990
Ainudrilus lutulentus (Erséus, 1984)
Ainudrilus mediocris Erséus, 1997
Ainudrilus ngopitchup Pinder & Halse, 2002
Ainudrilus nharna Pinder & Brinkhurst, 2000
Ainudrilus oceanicus Finogenova, 1982