Animalia
Acestus Leidy, 1851
Acritobdella Ringuelet, 1978
Adaetobdella Ringuelet, 1978
Adenobdella Leidy, 1885
Adenodrilus Chekanovskaya, 1959
Aegialina Friend, 1916
Aganippa Rafinesque, 1815
Agastrodrilus Omodeo & Vaillaud, 1967
Agrotoreutus Segun, 1976
Aicodrilus Righi, 1971
Albione Savigny, 1822
Albiones Westwood, 1840
Aleodrilus Eisen, 1896
Alexidrilus Righi, 1971
Aliolimnatis Richardson, 1972
Allodera Sperber, 1950
Alpodinaridella Mrsic, 1987
Alvania Beddard, 1893
Alyattes Kinberg, 1866
Amazo Righi, Ayres & Bittencourt, 1976
Amazonidrilus Righi, 1993
Ambalodus Branson & Mehl, 1933
Ambolodus Branson & Mehl, 1933
Amerigodrilus Holmquist, 1985
Anagaster Friend, 1921
Ancyrobdella Oka, 1917
Annadrilus Horst, 1893
Anoculobdella Weber, 1915
Anopsina Rafinesque, 1815
Antionais Piguet, 1928
Aphanascus Stephenson, 1924
Aptodrilus Cognetti, 1904
Archaeodrilus Czerniavsky, 1881
Archaeoryctes Czerniavsky, 1881
Archipheretima Michaelsen, 1928
Areco Righi, Ayres & Bittencourt, 1978
Argyrobdella Cordero, 1937
Arthronemus Rafinesque, 1815
Asabellarifex Klähn, 1932
Assudrilus Righi, 1971
Astraphidokrates Gistl, 1848
Atatina Righi, 1971
Atecospermia Pierantoni, 1904
Athecospermia Pierantoni, 1905
Aulacodus Pander, 1856
Aurantina Pierantoni, 1904
Austroscolex Jamieson, 1977
Aza Mulsant, 1850
Bahlia Gates, 1945
Bakedebdella Sciacchitano, 1939
Balanta Michaelsen, 1898
Barbarodina Stauffer, 1935
Barogaster Gates, 1939
Bathynomus Grube, 1879
Bauba Righi, 1980
Bdella Savigny, 1822
Bdellia Westwood, 1840
Beddardiella Michaelsen, 1910
Beladus Pander, 1856
Belodus Pander, 1856
Benhamiona Csuzdi & Zicsi, 1994
Bettonia Beddard, 1903
Bettoniella Gates, 1941
Bilimba Rosa, 1890
Blanchardia Gedroyc, 1915
Blennobdella Blanchard, 1849
Borgertia Michaelsen, 1905
Botarodrilus Zicsi, 1990
Brachydrilus Benham, 1888
Branchiobdella de Blainville, 1827
Bransonella Harlton, 1933
Bribri Righi, 1984
Brunodrilus Righi, 1971
Buettneriodrilus Michaelsen, 1897
Caecaria Floericke, 1892
Calebiella Gates, 1945
Cambarincola Goodnight, 1940
Carcinodrilus Yamaguchi, 1932
Cardiodus Branson & Mehl, 1933
Caribeobdella Ringuelet, 1976
Casentula Rafinesque, 1815
Centrognathus Branson & Mehl, 1935
Cephalopus Gronov, 1762
Chaetocotoides Julka, 1988
Chaetodemus Leidy, 1851
Chamaedrilus Friend, 1913
Chenidrilus Liang Yanling & Xie Zhicai, 1997
Chetcodrilus Fender & McKey-Fender, 1990
Chibui Righi & Guerra, 1985
Christensenia Dozsa-Farkas & Convey, 1997
Chuniodrilus Michaelsen, 1913
Claparedeilla Michaelsen, 1900
Claparedilla Vejdovsky, 1883
Clepsinides Augener, 1926
Clitellata
Clitelloides Finogenova, 1985
Colombobdella Mane-Garzon, 1973
Comarodrilus Stephenson, 1915
Conicodrilus Benham, 1945
Conphytobdella Richardson, 1975
Copopteroma Corda, 1837
Coprinoscolex Jones & Thompson, 1977
Coralliodriloides Erséus, 1985
Coronata Goodnight, 1940
Cotienchytraeus Righi, 1974
Cotinchytraeus Righi, 1974
Crassopodia Tate, 1859
Creinella Mrsic, 1986
Crossopodia M'Coy, 1851
Cryptochaeta Benham, 1950
Curgia Michaelsen, 1922
Curgiona Gates, 1941
Cymatobranchus Caballero y Caballero, 1960
Dacnobdella Ringuelet, 1978
Dactylius Curling, 1839
Dactylobdella van Beneden & Hesse, 1863
Dactyurus Rafinesque, 1815
Dagarobdella Finogenova & Snimschikova, 1991
Dariodrilus Righi, Ayres & Bittencourt, 1978
Dartevellida Sciacchitano, 1939
Dashiella Julka, 1988
Delgemus Rafinesque, 1815
Deltania Eisen, 1893
Democedes Kinberg, 1866
Dendrodilus Omodeo, 1956
Dendrodriloides Kvavadze, 2000
Deodrilus Beddard, 1890
Dermobdella Philippi, 1867
Diaphorodrilus Cognetti, 1908
Dichaeta Friend, 1896
Dichognathus Branson & Mehl, 1933
Digitibranchus Levinsen, 1890
Digitodrilus Segun, 1980
Dinaridella Mrsic, 1987
Dinephrus Spencer, 1900
Diplothecodrilus Csuzdi, 1996
Diplotuba Badve & Ghare, 1984
Dorgiodrilus Gates, 1962
Drilocheira Fender & McKey-Fender, 1990
Dualigenys Courtinat, 1998
Dubichaetaspis Eriksson, 1998
Dudichiodrilus Csuzdi, 1995
Dundjibdella Sciacchitano, 1939
Echinodrilus Vaillant, 1868
Echirus Rafinesque, 1815
Edmondiella Delphy, 1919
Eminia Benham, 1891
Eminodrilus Benham, 1891
Enicmodrilus Eisen, 1900
Enterion Savigny, 1822
Enterium Agassiz, 1846
Eodriloides Zicsi, 1998
Ephemitra Sims & Easton, 1972
Epithelphusa Drago, 1887
Epsteinia Utevsky, 1994
Eremodrilus Cognetti, 1904
Erpobdelliformes Sawyer, 1986
Erythraeodrilus Stephenson, 1915
Estherella Gates, 1970
Eubranchella Baird, 1869
Eudiplotrema Jamieson & Bennett, 1979
Eudriloides Michaelsen, 1890
Euenchytraeus Bretscher, 1906
Eumuliercula Timm, 1997
Euphrone Rafinesque, 1815
Eupolytorentus Michaelsen, 1912
Eupolytoreutus Michaelsen, 1910
Eurydame Kinberg, 1866
Euscolex Michaelsen, 1902
Eutoreutus Michaelsen, 1915
Eutrigaster Cognetti, 1904
Exisdrilus Righi, Ayres & Bittencourt, 1978
Exochleius Rafinesque, 1819
Exxus Gates, 1959
Filodrilus Chen, 1938
Foraminites King, 1848
Frearidrilus Dumnicka, 1987
Ganymedes Leigh-Sharpe, 1915
Gardullaria Michaelsen, 1903
Georyctes Schlotthauber, 1860
Geoscolex Leuckart, 1841
Glossipora Thompson, 1841
Glossobdella de Blainville, 1827
Glossophora Gray, 1831
Glossopora Johnson, 1817
Glossopore Blainville, 1827
Glossoporis Westwood, 1840
Gnatho Goldfuss, 1820
Gnathodella Matern, 1933
Goel Oken, 1815
Goiascolex Righi, 1971
Graceevelynia Graff, 1957
Graffia Csuzdi & Zicsi, 1991
Granelia Harant & Verniéres, 1936
Guamaia Righi, 1975
Guineoscolex Csuzdi & Zicsi, 1994
Gyrognathus Stauffer, 1935
Haaseina Michaelsen, 1935
Haemobdella Brandt, 1911
Haemocharis Savigny, 1822
Haemonis Bernouilli, 1849
Halodillus Verrill, 1873
Halodrillus Verrill, 1873
Haplodrilus Eisen, 1900
Hararbdella Sciacchitano, 1941
Haughtonia Kinahan, 1859
Healyella Omodeo & Rota, 1989
Hegesipyle Kinberg, 1866
Helluo Oken, 1815
Helminthodes Marsh, 1864
Heluo Blainville, 1827
Henleana Friend, 1915
Hepatogaster Cejka, 1910
Herpetonites Otto, 1855
Heterobdella Baird, 1869
Heterochaetella Yamaguchi, 1953
Heterognathus Stauffer, 1935
Hexachyloscolex Zicsi & Csuzdi, 1999
Hidejiodrilus Gelder & Brinkhurst, 1990
Hippobdella de Blainville, 1827
Hippopera Taylor, 1949
Hirudella Münster, 1842
Hirudinella Diesing, 1850
Hirundo
Histioderma Kinahan, 1858
Hixiene Hartmann, 1777
Hoemocharis Moquin-Tandon, 1827
Holtodrilus Gelder & Brinkhurst, 1990
Hormodrilus Rosa, 1889
Huananoserpula Xu, Lin & Wang, 1992
Hyalinaecites Stauffer, 1933
Hybobdella Weyenbergh, 1879
Hydrenchytraeus Bretscher, 1901
Hylacobdella Sciacchitano, 1935
Hylobdella Blanchard, 1888
Hyperiodrilus Beddard, 1890
Hypobdelle Cuvier, 1830
Hypsobdella Weber, 1915
Hyrudella Massalongo, 1855
Icthyodus Harris & Hollingsworth, 1933
Idiobdella Harding, 1913
Idrisobdella Leigh-Sharpe, 1933
Igriodus Branson & Mehl, 1933
Ilyodriloides Sokolskaya, 1983
Imbricina Rovereto, 1904
Incolore Omodeo, 1952
Irewiae Drachenberg, 1992
Ischyracanthus Marsh, 1865
Isosetosa Xu, Zhang & Jiang, 1989
Italobalkaniona Mrsic & Sapkarev, 1988
Jatrobdella de Blainville, 1827
Jennaria Rieger, 1991
Kaffania Michaelsen, 1903
Kanchuria Julka, 1988
Karmiella Julka, 1983
Karpatodinariona Mrsic & Sapkarev, 1988
Kathrynella Omodeo, 1996
Katnia Tandon & Kumar, 1977
Kawamuria Stephenson, 1917
Kaxdrilus Fragoso & Rojas-Fernandez, 1994
Keffia Clausen, 1963
Kerria Beddard, 1892
Kincaidodrilus McKey-Fender, 1982
Konkadrilus Julka, 1988
Kopilrok Holmquist, 1985
Kotegeharia Julka, 1988
Kozovetta Hrabe, 1982
Kurenkovia Sokolskaya, 1969
Lamadrilus Timm, 1998
Lamellibrachiidae Webb, 1969
Lamellisabellidae
Langioscolex Zicsi, 1990
Lapispira Lange, 1932
Lastockinia Naidu, 1961
Lavellodrilus Fragoso, 1988
Lecthaylus Weller, 1925
Legonea Clausen, 1963
Legonodrilus Sims, 1969
Leiodrilus Eisen, 1900
Lennoscolex Gates, 1960
Lepidocoleidae
Lepodus Branson & Mehl, 1933
Leptodrilus Wassell, 1984
Leptostoma Whitman, 1886
Libyodrilus Beddard, 1891
Lignicola Blyth, 1842
Limbrus Anon., 1829
Liodrilus Michaelsen, 1900
Litorea Cejka, 1913
Lobina Moquin-Tandon, 1846
Loksaia Csuzdi, 1996
Lonchodus Pander, 1856
Lonchosaccus Ruedemann, 1925
Lophobdella Poirier & Rochebrune, 1884
Lourdesia Righi, 1994
Lumbricogordius Noll, 1844
Lymphachaeta Snimshchikova, 1982
Machetna Semernoy & Timm, 1994
Macnabodrilus Fender & McKey-Fender, 1990
Macrobdellidae
Macrochaeta Bretscher, 1896
Maghrebiella Baha & Berra, 2001
Mahbenus Bourne, 1894
Maheina Michaelsen, 1899
Maiabdella Ringuelet, 1980
Maipure Righi, 1996
Malayabdella Richardson, 1975
Mallehulla Julka & Rao, 1982
Malodrilus Michaelsen, 1903
Maotianshaniidae Hou et al., 1999
Matadibdella Sciacchitano, 1939
Matzia Bärensprung, 1843
Mayadrilus Fragoso & Rojas-Fernandez, 1994
Megachaeta Michaelsen, 1891
Megachaetina Michaelsen, 1900
Melanenchytraeus Emery, 1898
Meridrilus Righi, 1993
Meroandriella Mrsic, 1987
Mesopachys Örsted, 1844
Mesoscolex Borges & Moreno, 1990
Metadrilus Michaelsen, 1891
Metalamprodrilus Isossimoff, 1962
Metataxis Righi, 1985
Metschaina Michaelsen, 1903
Michaelseniella Cernosvitov, 1934
Michalakus Plisko, 1996
Micrapium Thorell, 1870
Microdrilus Beddard, 1893
Microstoma Whitman, 1885
Miskoia Walcott, 1911
Moluccabdella Richardson, 1975
Moncraterion Matthew, 1891
Mongbwalubdella Sciacchitano, 1939
Monogaster Michaelsen, 1915
Monopus Gosse, 1855
Monothecodrilus Csuzdi & Zicsi, 1994
Mooreotorix Lukin, 1976
Moquinia Blanchard, 1888
Muliercula Timm, 1995
Multidentodus Harlton, 1933
Mutzia Vogt, 1841
Myrianites MacLeay, 1839
Myrianytes Massalongo, 1855
Myrionites Gümbel, 1879
Myzostomites
Naillenia Eisen, 1900
Nannodrilus Beddard, 1894
Nectohelmins Kincaid & Ruffolo, 1988
Nelloscolex Gates, 1939
Nemapodia Emmons, 1846
Nemertodrilus Michaelsen, 1890
Nemoctus Rafinesque, 1814
Nemodrilus Claparède, 1862
Neoaulodrilus Giani, Martinez-Ansemil, Moubayed & Dia, 1982
Neogaster Cernosvitov, 1934
Neoscolex Sokolskaya, 1976
Neotrigaster James, 1991
Nephrallaxis Fender & McKey-Fender, 1990
Nereites MacLeay, 1839
Neumanniella Michaelsen, 1903
Neumanniona Michaelsen, 1935
Nicodrilus Bouche, 1972
Nitocris Kinberg, 1866
Nosamia Rafinesque, 1814
Nothognathella Branson & Mehl, 1933
Notogama Rosa, 1893
Notykus Michaelsen, 1891
Nsukkadrilus Segun, 1977
Octolasium Omodeo, 1956
Octonochaeta Julka, 1988
Oesia Walcott, 1911
Oikobesalon Thomas & Smith, 1998
Oligobrachiidae
Oligoclepsis Oka, 1935
Oliveiriana Maury, 1927
Omahania Eisen, 1900
Omilurus Templeton, 1836
Omodeoia Kvavadze, 1994
Omodeona Sims, 1967
Omodeoscolex Csuzdi, 1993
Onoreodrilus Zicsi, 1987
Oosthuizobdella Sawyer, 1986
Ophibdella Beneden & Hesse, 1863
Opisthocordis Righi, 1984
Opistodrilus Rosa, 1895
Oplosiphus Rafinesque, 1815
Opothedrilus Bouche, 1972
Opsonais Gervais, 1838
Orientodrilus Holmquist, 1978
Ornataporta Gardner, 1916
Orobdella Oka, 1895
Ortonia Nicholson, 1872
Osaka Kondô, 1936
Pachydermon Claparède, 1861
Pachysomia Kilwinning-Smith, 1907
Palaeobdella Blainville, 1829
Palaeohirudo Kozur, 1970
Palaeonereis Eichwald, 1856
Palaeorbis Beneden & Coemans, 1867
Palaeoscolecidae Whittard, 1953
Paleobdella Moquin-Tandon, 1846
Palmatodella Bassler, 1925
Palpenchytraeus Michaelsen, 1916
Paltodus Pander, 1856
Panderodella Ulrich & Bassler, 1926
Panoniona Mrsic & Sapkarev, 1988
Papillonais Sokolovskaya, 1957
Paracanthobdella Epshtein, 1987
Paradrilus Michaelsen, 1891
Parapheretima Cognetti de Martiis, 1912
Parapolytoreutus Segun, 1980
Parapontobdella Harant, 1929
Parascolex Michaelsen, 1900
Paratorix Lukin & Epshtein, 1960
Pareudrilus Beddard, 1894
Parryodrilus Julka, Giri, Panigrahi & Senapati, 1997
Parvidrilidae
Patagoniobdella Ringuelet, 1972
Paulistus Michaelsen, 1925
Pentabdella Llewellyn, 1966
Peosidriloides Erséus & Millig, 1994
Perolofius Righi & Nemeth, 1983
Perriera Vaillant, 1889
Pharyngobdelliformes Caballero, 1952
Phelsumus Rafinesque, 1815
Philippia Weber, 1915
Phormio Goldfuss, 1820
Photodrilus Giard, 1887
Pickfordia Omodéo, 1958
Piguetia Hrabé, 1936
Pilothylakos Manum, Bose & Sawyer, 1991
Pinacobdella Diesing, 1850
Plagiodina Cooper, 1933
Plagiogmus Roedel, 1929
Planapheretima Michaelsen, 1934
Platydrilus Michaelsen, 1891
Plectospathodus Branson & Mehl, 1933
Pleionogaster Michaelsen, 1892
Pleurochaeta Beddard, 1883
Pleurophlebs Vaillant, 1890
Pleurophleps Michaelsen, 1900
Plionogaster Michaelsen, 1900
Plumulitidae
Podobdella Diesing, 1850
Podoclepsis Dequal, 1917
Pododrilus Czerniavsky, 1881
Polodorites Douvillé, 1907
Polybrachiidae
Polycaulodus Branson & Mehl, 1933
Polychaeta Grube, 1850
Polydora Oken, 1816
Polygaster Horst, 1896
Polygnathodella Harlton, 1933
Polyupsilon Howell, 1957
Praedrilus Righi, 1971
Preussia Michaelsen, 1891
Preussiella Michaelsen, 1900
Priodochaeta Gates, 1940
Priodoscolex Gates, 1940
Prioniodella Bassler, 1925
Prionocanthus Pander, 1856
Pristinais Gervais, 1838
Proandricus Plisko, 1992
Promegascolex Cognetti de Martiis, 1922
Pronaidites Kusta, 1888
Protechiurus Glaessner, 1979
Proto Blainville, 1828
Psammobius Levinsen, 1884
Pseudenchytraeus Delphy, 1919
Pseudilyodrilus Delphy, 1919
Pseudobdella Blainville, 1827
Pseudochibui Drachenberg, 1991
Pseudolumbriculus Dieffenbach, 1886
Pseudolycodrilus Hrabe, 1982
Pseudorhynchelmis Hrabe, 1982
Pterochaeta Pierantoni, 1911
Pterostylarides Czerniavsky, 1881
Punahenlea Nurminen, 1980
Purpureum Omodeo, 1952
Pygmaeodrilus Michaelsen, 1890
Pyrgopolopsis Rovereto, 1903
Ramella Michaelsen, 1922
Ramiella Stephenson, 1921
Randdrilus Moreno & Perez-Santos, 1997
Reithrodrilus Michaelsen, 1891
Rhodonicus Bouche, 1972
Rhopalonais Dzwillo & Grimm, 1974
Riftiidae Jones, 1981
Righiella Omodeo & Coates, 2001
Righiodrilus Zicsi, 1995
Rillogaster Gates, 1939
Rosadrilus Cognetti, 1909
Sabellarites Richter, 1920
Sanguisuga Bruguière, 1789
Santomesia Righi, 1984
Schlegelia Weyenbergh, 1880
Schoutedenia Michaelsen, 1936
Schubotziella Michaelsen, 1915
Sciobdella Richardson, 1971
Scolecillus Omodéo, 1958
Scolioscolides Gates, 1937
Scolopodella Stauffer & Plummer, 1932
Scorpaenobdella Saint-Loup, 1886
Scotlandia Cossmann, 1909
Segunia Sims, 1985
Segunodrilus Owa, 1995
Semilageneta Goddard, 1908
Semiscoloides Sawyer, 1986
Serbiona Mrsic & Sapkarev, 1988
Serpentina Örsted, 1842
Serpulina Zborzevski, 1834
Serpulithes Bronn, 1849
Serpuloides Murchison, 1839
Sinenchytraeus Liang & Hsu, 1979
Sinobdella Nesemann, 1995
Sinodrilus Gelder & Brinkhurst, 1990
Siphonogaster Levinsen, 1890
Spencerius Loden, 1978
Sphagodus Eichwald, 1854
Sphenothallus Hall, 1847
Spilodrilus Piguet, 1928
Spinacoleus Schallreuter, 1985
Spirobrachiidae
Spirospermoides Dumnicka, 1983
Sporadochaeta Stephenson, 1930
Sporadoehaeta Cognetti, 1905
Stephanodella Matern, 1933
Stephensonia Aiyer, 1929
Stilina Gervais, 1837
Strephuris Leidy, 1850
Stuhlmannia Michaelsen, 1890
Stylinais Gervais, 1838
Suabdella
Subcordylodus Stauffer, 1935
Subprioniodus Smith, 1907
Synprioniodina Bassler, 1925
Tairona Righi, 1984
Takunodrilus Owa, 1995
Tamayodrilus Zicsi, 1995
Tatjanellia Zenkevitch, 1957
Tazelaaria Gates, 1962
Teleudrilus Rosa, 1888
Teleutoreutus Michaelsen, 1903
Telumodina Cooper, 1931
Temanonegia Gates, 1979
Tentaculina Zborzewski, 1834
Tetralysis Eudes-DesLongchamps, 1878
Thalassina Montague, 1815
Thalosoema
Thartharella Elliot, 1980
Thinodrilus Smith, 1895
Titanus Perrier, 1872
Tokea Benham, 1905
Tonperoge Righi & Ayres, 1975
Tortoniodus Stauffer, 1935
Trachyderma Phillips, 1848
Trachydrilus Piguet, 1928
Travascolides Gates, 1940
Tribothrynobdella Ringuelet, 1976
Trichochaeta Beddard, 1893
Trigonobdella Sciacchitano, 1939
Tristabdella Richardson, 1975
Troyia Jamieson, 1977
Trucherognathus Branson & Mehl, 1933
Trulliodbella Brinkmann, 1948
Trypanites Mägdefrau, 1932
Tubipenifer Semernoi, 1982
Tubiscolex Michaelsen, 1935
Tubulites Gesner, 1758
Tuiba Righi, Ayres & Bittencourt, 1976
Tumak Righi, 1996
Tupidrilus Righi, 1974
Tupinaki Righi, 1996
Turedrilus Righi, 1993
Turrilepadidae
Typheus Vejdovsky, 1884
Typhlobdella Diesing, 1850
Typhoeus Beddard, 1883
Udeina Michaelsen, 1910
Udekemiana Cernosvitov, 1931
Uglukodrilus Holt, 1989
Unoculubranchiobdella Peralta, Matos & Serra-Freire, 1998
Unyoria Michaelsen, 1896
Urobenus Benham, 1886
Urochaeta Perrier, 1872
Urocheta Perrier, 1874
Urotheca Matthew, 1899
Valentia Smith, 1907
Velorbis Knight-Jones & Knight-Jones, 1995
Vermicularis Borson, ?, 1822
Vermiculites Bronn, 1848
Vetrovermis Imhof, 1888
Villiersia Omodeo, 1987
Virgulaxonaria Fisher, 1962
Virgulaxonia Yin, 1937
Vomia Segun, 1976
Wahoscolex Julka, 1988
Wegeneriella Michaelsen, 1933
Wegeneriona Cernosvitov, 1939
Woodwardia Michaelsen, 1907
Worthenella Walcott, 1911
Wuinereis Khlebovich, 1996
Xana Díaz Cosín, Briones & Trigo, 1989
Xantho Dutrochet, 1819
Xibaro Righi, 1981
Zapatadrilus James, 1991
Zicsiona Mrsic & Sapkarev, 1987
Zongodrilus Righi, 1996