Acanthonchus Cobb, 1920 (ecology source)
Acanthopharynx Marion, 1870 (ecology source)
Actinonema Cobb, 1920 (ecology source)
Aegialoalaimus de Man, 1907 (ecology source)
Alaimella Cobb, 1920 (ecology source)
Ammotheristus Lorenzen, 1977 (ecology source)
Anticoma Bastian, 1865 (ecology source)
Araeolaimus de Man, 1888 (ecology source)
Atrochromadora Wieser, 1959 (ecology source)
Axonolaimus de Man, 1889 (ecology source)
Bathyepsilonema Steiner, 1927 (ecology source)
Bolbolaimus Cobb, 1920 (ecology source)
Calomicrolaimus Lorenzen, 1976 (ecology source)
Calyptronema Marion, 1870 (ecology source)
Camacolaimus de Man, 1889 accepted as Deontolaimus de Man, 1880 (ecology source)
Ceramonema Cobb, 1920 (ecology source)
Cervonema Wieser, 1954 (ecology source)
Cheironchus Cobb, 1917 (ecology source)
Chitwoodia Gerlach, 1956 (ecology source)
Chromadora Bastian, 1865 (ecology source)
Chromadorella Filipjev, 1918 (ecology source)
Chromadorina Filipjev, 1918 (ecology source)
Chromadorita Filipjev, 1922 (ecology source)
Chromaspirina Filipjev, 1918 (ecology source)
Comesomoides Gourbault, 1980 (ecology source)
Cricolaimus Southern, 1914 (ecology source)
Cyartonema Cobb, 1920 (ecology source)
Cyatholaimus Bastian, 1865 (ecology source)
Daptonema Cobb, 1920 (ecology source)
Dasynemoides Chitwood, 1936 (ecology source)
Desmodora de Man, 1889 (ecology source)
Desmodora (Bolbonema) Cobb, 1920 accepted as Bolbonema Cobb, 1920 (ecology source)
Desmodora (Croconema) Cobb, 1920 accepted as Croconema Cobb, 1920 (ecology source)
Desmodora (Desmodorella) Cobb, 1933 accepted as Desmodorella Cobb, 1933 (ecology source)
Desmoscolex Claparède, 1863 (ecology source)
Dichromadora Kreis, 1929 (ecology source)
Didelta Cobb, 1920 (ecology source)
Diodontolaimus Southern, 1914 (ecology source)
Diplopeltis Cobb, 1905 (ecology source)
Diplopeltula Gerlach, 1950 (ecology source)
Dolicholaimus De Man, 1888 (ecology source)
Dracognomus Allen & Noffsinger, 1978 (ecology source)
Dracograllus Allen & Noffsinger, 1978 (ecology source)
Draconema Cobb, 1913 (ecology source)
Eleutherolaimus Filipjev, 1922 (ecology source)
Enoplida (ecology source)
Enoploides Ssaweljev, 1912 (ecology source)
Enoplolaimus de Man, 1893 (ecology source)
Enoplus Dujardin, 1845 (ecology source)
Epacanthion Wieser, 1953 (ecology source)
Epsilonema Steiner, 1927 (ecology source)
Eubostrichus Greeff, 1869 (ecology source)
Euchromadora de Man, 1886 (ecology source)
Eurystomina Filipjev, 1921 (ecology source)
Gammanema Cobb, 1920 (ecology source)
Gomphionchus Platt, 1982 (ecology source)
Halalaimus de Man, 1888 (ecology source)
Halichoanolaimus de Man, 1886 (ecology source)
Innocuonema Inglis, 1969 (ecology source)
Laimella Cobb, 1920 (ecology source)
Latronema Wieser, 1954 (ecology source)
Leptepsilonema Clasing, 1983 (ecology source)
Leptolaimoides Vitiello, 1971 (ecology source)
Leptolaimus de Man, 1876 (ecology source)
Leptonemella Cobb, 1920 (ecology source)
Leptosomatum Bastian, 1865 (ecology source)
Linhomoeus Bastian, 1865 (ecology source)
Litinium Cobb, 1920 (ecology source)
Longicyatholaimus Micoletzky, 1924 (ecology source)
Marilynia Hopper, 1972 accepted as Marylynnia (Hopper, 1972) Hopper, 1977 (ecology source)
Mesacanthion Filipjev, 1927 (ecology source)
Metachromadora Filipjev, 1918 (ecology source)
Metacyatholaimus Stekhoven, 1942 (ecology source)
Metadesmolaimus Schuurmans Stekhoven, 1935 (ecology source)
Metalinhomoeus de Man, 1907 (ecology source)
Metepsilonema Steiner, 1927 (ecology source)
Metoncholaimus Filipjev, 1918 (ecology source)
Microlaimus de Man, 1880 (ecology source)
Molgolaimus Ditlevsen, 1921 (ecology source)
Monhystera Bastian, 1865 (ecology source)
Monhystrella Cobb, 1918 (ecology source)
Nannolaimoides Ott, 1972 (ecology source)
Nannolaimus Cobb, 1920 (ecology source)
Neochromadora Micoletzky, 1924 (ecology source)
Odontophora Bütschli, 1874 (ecology source)
Odontophoroides Boucher & Helléouët, 1977 (ecology source)
Omicronema Cobb, 1920 (ecology source)
Onchium Cobb, 1920 (ecology source)
Oncholaimus Dujardin, 1845 (ecology source)
Onyx Cobb, 1891 (ecology source)
Oxystomina Filipjev, 1918 (ecology source)
Papillonema Verschelde, Muthumbi & Vincx, 1995 (ecology source)
Paracanthonchus Micoletzky, 1924 (ecology source)
Paracomesoma Schuurmans Stekhoven, 1950 (ecology source)
Paracyatholaimoides Gerlach, 1953 (ecology source)
Paracyatholaimus Micoletzky, 1922 (ecology source)
Paradraconema Allen & Noffsinger, 1978 (ecology source)
Paralinhomoeus de Man, 1907 accepted as Linhomoeus Bastian, 1865 (ecology source)
Paramesacanthion Wieser, 1953 (ecology source)
Paramonohystera Steiner, 1916 (ecology source)