Acanthomysis davisi Banner, 1948 accepted as Exacanthomysis davisi (Banner, 1948) (basis of record)
Acanthomysis macropsis (Tattersall, 1932) accepted as Alienacanthomysis macropsis (W. Tattersall, 1932) (basis of record)
Acanthomysis nephrophthalma Banner, 1948 accepted as Pacifacanthomysis nephrophthalma (Banner, 1948) (basis of record)
Acanthomysis pseudomacropsis (Tattersall, 1933) accepted as Xenacanthomysis pseudomacropsis (W. Tattersall, 1933) (basis of record)
Adoncholaiminae Gerlach & Riemann, 1974 (additional source)
Aegialoalaimidae Lorenzen, 1981 (additional source)
Anoplostoma Bütschli, 1874 (additional source)
Anoplostoma blanchardi de Man, 1888 accepted as Anoplostoma campbelli Allgén, 1932 (additional source)
Anoplostoma campbelli Allgén, 1932 (basis of record)
Anoplostomatidae Gerlach & Riemann, 1974 (additional source)
Anoplostomatinae (additional source)
Anticoma Bastian, 1865 (additional source)
Anticomidae Filipjev, 1918 (additional source)
Antomicron Cobb, 1920 (additional source)
Araeolaimus de Man, 1888 (additional source)
Atrochromadora Wieser, 1959 (additional source)
Axonolaimidae Filipjev, 1918 (additional source)
Axonolaimoidea Filipjev, 1918 (additional source)
Axonolaimus de Man, 1889 (additional source)
Bathylaimus Cobb, 1894 (additional source)
Bathylaimus capacosus Hopper, 1962 (additional source)
Bathylaimus chesapeakensis Timm, 1952 (basis of record)
Bathylaimus parafilicaudatus Allgén, 1935 accepted as Bathylaimus chesapeakensis Timm, 1952 (additional source)
Calyptronema Marion, 1870 (additional source)
Camacolaiminae Micoletzky, 1924 (additional source)
Campylaimus Cobb, 1920 (additional source)
Chromadora Bastian, 1865 (additional source)
Chromadora axi Gerlach, 1951 (additional source)
Chromadora nudicapitata Bastian, 1865 (additional source)
Chromadoridae Filipjev, 1917 (additional source)
Chromadorina (additional source)
Chromadorina Filipjev, 1918 (additional source)
Chromadorina germanica (Bütschli, 1874) Wieser, 1954 (additional source)
Chromadorinae Filipjev, 1917 (additional source)
Chromadorita Filipjev, 1922 (additional source)
Chromadorita tenuis (G. Schneider, 1906) Filipjev, 1922 (additional source)
Chromadoroidea Filipjev, 1917 (additional source)
Chromaspirina thieryi De Coninck, 1943 (additional source)
Cobbia de Man, 1907 (additional source)
Comesomatidae Filipjev, 1918 (additional source)
Comesomatinae Filipjev, 1918 (additional source)
Crenopharynginae Platonova, 1976 (additional source)
Cyartonema Cobb, 1920 (additional source)
Cyatholaimidae Filipjev, 1918 (additional source)
Cyatholaimus Bastian, 1865 (additional source)
Daptonema Cobb, 1920 (additional source)
Daptonema albigensis (Riemann, 1966) Hopper, 1968 accepted as Promonhystera albigensis Riemann, 1966 (additional source)
Daptonema oxycerca (de Man, 1888) Lorenzen, 1977 (additional source)
Daptonema procerum (Gerlach, 1951) Lorenzen, 1977 (additional source)
Daptonema setosum (Bütschli, 1874) Lorenzen, 1977 (additional source)
Daptonema tenuispiculum (Ditlevsen, 1918) Lorenzen, 1977 (additional source)
Daptonema trabeculosum (Schneider, 1906) Lorenzen, 1977 (additional source)
Desmodora de Man, 1889 (additional source)
Desmodoridae Filipjev, 1922 (additional source)
Desmodorinae Filipjev, 1922 (additional source)
Desmodoroidea Filipjev, 1922 (additional source)
Desmolaiminae Schneider, 1926 (additional source)
Desmoscolecidae Shipley, 1896 (additional source)
Desmoscolecina (additional source)
Desmoscolecinae (additional source)
Desmoscolex Claparède, 1863 (additional source)
Dichromadora Kreis, 1929 (additional source)
Dichromadora scandula Lorenzen, 1966 (additional source)
Diplolaimella Allgén, 1929 (additional source)
Diplopeltidae Filipjev, 1918 (additional source)
Diplopeltinae Filipjev, 1918 (additional source)
Diplopeltoides Gerlach, 1962 (additional source)
Diplopeltula Gerlach, 1950 (additional source)
Doliolaimus Lorenzen, 1966 (additional source)
Dorylaimida (additional source)
Dorylaimopsinae De Coninck, 1965 (additional source)
Dorylaimopsis Ditlevsen, 1918 (additional source)
Elzalia Gerlach, 1957 (additional source)
Enchelidiidae Filipjev, 1918 (additional source)
Enoplidae Dujardin, 1845 (additional source)
Enoplinae Micoletzky, 1922 (basis of record)
Enoploidea Dujardin, 1845 (additional source)
Enoploides Ssaweljev, 1912 (additional source)
Enoplolaiminae De Coninck, 1965 (additional source)
Enoplolaimus de Man, 1893 (additional source)
Enoplus Dujardin, 1845 (additional source)
Enoplus communis Bastian, 1865 (additional source)
Euchromadorinae Gerlach & Riemann, 1973 (additional source)
Halalaiminae De Coninck, 1965 (additional source)
Halalaimus de Man, 1888 (additional source)
Halanonchinae Wieser & Hopper, 1967 (additional source)
Halanonchus Cobb, 1920 (additional source)
Halaphanolaimus Southern, 1914 accepted as Leptolaimus de Man, 1876 (additional source)
Haliplectidae Chitwood, 1951 (additional source)
Haliplectus Cobb, 1913 (additional source)
Hypodontolaiminae De Coninck, 1965 (additional source)
Hypodontolaimus de Man, 1886 (additional source)
Hypodontolaimus balticus (G. Schneider, 1906) Filipjev, 1918 (additional source)
Innocuonema Inglis, 1969 (additional source)
Inusitatiomysis insolita Ii, 1940 accepted as Inusitatomysis insolita Ii, 1940 (basis of record)
Ironidae de Man, 1876 (additional source)
Ironoidea de Man, 1876 (additional source)
Leptolaimidae Örley, 1880 (additional source)
Leptolaimina accepted as Plectina (additional source)
Leptolaiminae Örley, 1880 (additional source)