牙蟲科
下级分类

本科包括以下属：
Acaryon Hebauer, 2003
Acidocerus Klug, 1855
Aculomicrus Smetana, 1990
Adolopus Sharp, 1884
Afrotormus M.Hansen, 1999
Agna Smetana, 1978
Agraphydrus Komarek & Hebauer, 2018
Agraphydrus Régimbart, 1903
Alegorius Fikáček, Prokin, Yan, Yue, Wang, Ren & Beattie, 2014
Allocotocerus Kraatz, 1883
Ametor A.P.Semenov, 1900
Amphibolus Waterhouse, 1833
Amphiops Erichson, 1843
毛腿牙甲属 Anacaena C.G.Thomson, 1859
Andotypus Spangler, 1979
Angarolarva Ponomarenko, 1985
Anticura Spangler, 1979
Aposphinctus Bode, 1953
Apurebium García, 2002
Arabhydrus Hebauer, 1997
Armostus Sharp, 1890
Aulonochares Girón & Short, 2019
Australocyon M.Hansen, 1990
Austrotypus Fikáček, Minoshima & Newton, 2014
Badioglobus Short, 2005
Baissalarva Fikáček, Prokin, Yan, Yue, Wang, Ren & Beattie, 2014
Batochares M.Hansen, 1991
Berosus Leach, 1817
Bolbonotum M.Hansen, 1999
Borborophorus M.Hansen, 1990
Bourdonnaisia Scott, 1913
Brownephilus Mouchamps, 1959
Cenebriophilus M.Hansen, 1990
Cercillum Knisch, 1921
Cercyodes Broun, 1886
Cercyon Leach, 1817
Cernocyton Hansen, 1990
Ceronocyton M.Hansen, 1990
Cetiocyon M.Hansen, 1990
Chaetarthria Stephens, 1835
Chasmogenus Sharp, 1882
Chimaerocyon Fikáček, Maruyama, Vondráček & Short., 2013
Chledocyon M.Hansen, 1990
Coeloctenus J.Balfour-Browne, 1939
Coelofletium Orchymont, 1925
Coelostoma Brullé, 1835
Coelostomopsis M.Hansen, 1990
Colerus M.Hansen, 1999
Colossochares Girón & Short, 2021
Creniphilites Wickham, 1913
Crenitis Bedel, 1881
Crenitulus Winters, 1926
Crephelochares Kuwert, 1890
Cretocrenis Fikáček, Minoshima, Komarek, Short, Huang & Cai, 2017
Cretohelophorus Ponomarenko, 1987
Cretosperchus Ponomarenko, 1997
Cretoxenus Fikáček, Prokin, Yan, Yue, Wang, Ren & Beattie, 2014
Crucisternum Girón & Short, 2018
Cryptopleurum Mulsant, 1844
Cyclotypus Sharp, 1882
Cycreon Orchymont, 1919
Cycrillum Knisch, 1921
Cyloma Sharp, 1872
Cylomissus Broun, 1903
Cylorygmus Orchymont, 1933
Cymbiodyta Bedel, 1881
Cyrtonion M.Hansen, 1989
Dactylosternum Wollaston, 1854
Dactylostethus Orchymont, 1919
Delimetrium M.Hansen, 1999
Deltostethus Sharp, 1882
Derallus Sharp, 1882
Dibolocelus Bedel, 1892
Elocomosta M.Hansen, 1989
Emmidolium Orchymont, 1937
Enigmahydrus Seidel, Minoshima, Leschen & Fikáček, 2020
Enochrella M.Hansen, 1999
Enochrus C.G.Thomson, 1859
Ephydrolithus Girón & Short, 2019
Ercycodes M.Hansen, 1990
Escheria Heer, 1847
Eurygmus M.Hansen, 1990
Evanesternum Arriaga-Varela, Seidel & Fikáček, 2018
Exydrus Broun, 1886
Galapagodacnum Orchymont, 1937
Gemelus Garcia, 2000
Georyssus Agassiz, 1846
Gillisius Orchymont, 1925
Globulosis García, 2001
Guaramacalus Garcia, 2000
Guyanobius Spangler, 1986
Helobata Bergroth, 1888
Helochares Mulsant, 1844
Helopeltarium Orchymont, 1943
Hemikruia Hebauer & M.Hansen, 2002
Hemiosus Sharp, 1882
Hemisphaera Pandellé, 1876
Heteryon Sharp, 1882
Himalcercyon Hebauer, 2002
Horelophus Orchymont, 1913
Hybogralius Orchymont, 1942
Hydramara Knisch, 1925
Hydrobiites Heer, 1864
Hydrobiomorpha Blackburn, 1888
Hydrobius Leach, 1815
Hydrobius Linnaeus, 1758
Hydrocassis Deyrolle & Fairmaire, 1878
Hydrocassis anhuiensis Ji, Lanzhu & Schödl, 1998
Hydrocassis baoshanensis Schödl & Lanzhu Ji, 1995
Hydrocassis formosus (Knisch, 1921)
Hydrocassis fujiwarai Kamite & M.Hayashi, 2019
Hydrocassis gansu Jia, Fenglong & Shuang Zhao, 2013
Hydrocassis hebaueri Schödl, 2000
Hydrocassis imperialis (Knisch, 1921)
Hydrocassis jengi Satô, 1998
Hydrocassis lacustris (Sharp, 1884)
Hydrocassis metasternalis Schödl & Lanzhu Ji, 1995
Hydrocassis mongolica Liu, Yan-bin, Lan-zhu Ji & Tian-zhong Jing, 2008
Hydrocassis pseudoscapha Ji, Lanzhu & Schödl, 1998
Hydrocassis scapha Orchymont, 1942
Hydrocassis scaphoides Orchymont, 1942
Hydrocassis scapulata Fairmaire, 1878
Hydrocassis schillhammeri Schödl & Lanzhu Ji, 1995
Hydrocassis sichuana Ji, Lanzhu & Schödl, 1998
Hydrocassis taiwana Satô, 1971
Hydrocassis uncinata Ji, Lanzhu & Schödl, 1998
Hydrochara Berthold, 1827
水鳖属 Hydrocharis Berthold, 1827
Hydroglobus Knisch, 1921
Hydrophilites Heer, 1864
Hydrophilomima M.Hansen & Schödl, 1997
Hydrophilopsis Heer, 1862
牙蟲屬 Hydrophilus Geoffroy, 1762
Hydrostygnus Sharp, 1884
黑水龟虫属 Hydrous Leach, 1815
Hydroyixia Fikáček, Prokin, Yan, Yue, Wang, Ren & Beattie, 2014
Kahanga M.Hansen, 1999
Kanala J.Balfour-Browne, 1939
Katasophistes Girón & Short, 2018
Koonwarraphis
Laccobius Erichson, 1837
Lachnodacnum Orchymont, 1937
Lala M.Hansen, 1999
Limnocyclus J.Balfour-Browne, 1939
Limnohydrobius Reitter, 1909
Limnoxenus Motschulsky, 1853
Litrosurus Orchymont, 1925
Megasternum Mulsant, 1844
Merosoma J.Balfour-Browne, 1939
Mesohelophorus Ponomarenko, 1977
Mesosperchus Ponomarenko, 1977
Micramphiops Short, 2009
Mircogioton Orchymont, 1937
Moraphilus Orchymont, 1925
Morastus Orchymont, 1926
Motonerus M.Hansen, 1989
Mucetum Orchymont, 1926
Nannomicrus Bameul, 1991
Nanosaphes Girón & Short, 2018
Nipponocercyon Satô, 1963
Nitidulodes Sharp, 1882
Nitiduloides Sharp, 1882
Noteropagus Orchymont, 1919
Notionotus González-Rodríguez & Short, 2022
Notionotus Spangler, 1972
Notocercyon Blackburn, 1898
Notohydrus J.Balfour-Browne, 1939
Novochares Girón & Short, 2021
Omicrogiton Orchymont, 1919
Omicrus Sharp, 1879
Oocyclus Sharp, 1882
Oosternum Sharp, 1882
Ophthalmocyclus Komarek, 2003
Oreomicrus Malcolm, 1980
Oreosternum Jia, Fenglong, Zulong Liang & Fikáček, 2020
Orphnospercheus Hong & You-chong, 1992
Orphnospercheus Linnaeus, 1992
Pachysternum Motschulsky, 1863
Pacrillum Orchymont, 1941
Paracymus C.G.Thomson, 1867
Paranacaena Blackburn, 1888
Paraoosternum Scott, 1913
Paraspercheus Ponomarenko, 1977
Parastromus J.Balfour-Browne, 1948
Paromicrus Scott, 1913
Paroosternum Scott, 1913
Pelocyon J.Balfour-Browne, 1950
Pelosoma Mulsant, 1844
Pelthydrus Orchymont, 1919
Peltocercyon Orchymont, 1925
Peltochares Régimbart, 1907
Penitus Zhang, Junfeng, Bo Sun & Xiyu Zhang, 1994
Peratogonus Sharp, 1884
Petasopsis M.Hansen, 1990
Phaenonotum Sharp, 1882
Phaenostoma Orchymont, 1937
Phelea M.Hansen, 1999
Philhydrus Solier, 1834
Pilocnema M.Hansen, 1990
Platycyon M.Hansen, 1999
Polysitum Dunstan, 1923
Polysitum Tillyard, 1923
Primocerus Girón & Short, 2019
Prospercheus Prokin, 2009
Protistolophus Short, 2010
Protochares Fikáček, Prokin, Yan, Yue, Wang, Ren & Beattie, 2014
原胸牙蟲屬 Protosternum Sharp, 1890
Psalitrus Orchymont, 1919
Pseucyon Orchymont, 1948
Pseudocercyon Orchymont, 1926
Pseudohydrobius Blackburn, 1898
Pseudoosternum M.Hansen, 1990
Pseudorygmodus M.Hansen, 1999
Pyretus J.Balfour-Browne, 1950
Quadriops M.Hansen, 1999
Quadristernum J.Balfour-Browne, 1950
Radicitus Short & M.García, 2014
Regimbartia Zaitzev, 1908
Relictorygmus Seidel, Minoshima, Arriaga-Varela & Fikáček, 2018
Rhachiostethus M.Hansen, 1989
Rhombosternum J.Balfour-Browne, 1942
Rygmodus A.White, 1846
Rygmostralia Orchymont, 1933
Sacosternum M.Hansen, 1989
Saphydrus Sharp, 1884
Scoliopsis Orchymont, 1919
Sindolus Sharp, 1882
Sinosperchopsis Prokin, Dong Ren & Fikáček, 2010
Sperchopsis J.L.LeConte, 1861
Sphaeridium Fabricius, 1775
Sphaerocetum Fikáček, 2010
Stanmalcolmia Bameul, 1993
Sternolophus Solier, 1834
Tectosternum J.Balfour-Browne, 1958
Thysanarthria Orchymont, 1926
Tobochares Short & M.García, 2007
Toma M.Hansen, 1999
Tormissus Broun, 1893
Tormus Sharp, 1884
Tritonus Mulsant, 1844
Troglochares Spangler, 1981
Tropisternis Solier, 1834
Tropisternus Solier, 1834
Tylomicrus Schödl, 1995
Venezuelobium García, 2002
Wollastonia Heer, 1852
Zetemenos Bode, 1953