Adoncholaimus fuscus (Bastian, 1865) Filipjev, 1918 (ecology source)
Ascolaimus elongatus (Bütschli, 1874) Shuurmans Stekhoven & de Coninck, 1932 (ecology source)
Bathylaimus australis Cobb, 1894 (ecology source)
Cephalobus Bastian, 1865 (basis of record)
Chitwoodia warwicki Jayasree, 1976 (additional source)
Chromadora macrolaima de Man, 1889 (ecology source)
Chromadorita nana Lorenzen, 1973 (ecology source)
Daptonema normandicus (de Man, 1890) accepted as Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (ecology source)
Daptonema riemanni (Platt, 1973) accepted as Paramonohystera riemanni (Platt, 1973) Lorenzen, 1977 (ecology source)
Daptonema setosum (Bütschli, 1874) Lorenzen, 1977 (ecology source)
Dichromadora geophila (de Man, 1876) Kreis, 1929 (additional source)
Diplopeltula asetosa Juario, 1974 accepted as Diplopeltoides asetosus (Juario, 1974) Holovachov & Boström, 2017 (additional source)
Diplopeltula belgica Vincx & Gourbault, 1992 accepted as Belgopeltula belgica (Vincx & Gourbault, 1992) Holovachov, 2017 (basis of record)
Enoploides longispiculosus Vitiello, 1967 (ecology source)
Enoplolaimus propinquus de Man, 1922 (ecology source)
Hypodontolaimus schuurmansstekhoveni Gerlach, 1951 (additional source)
Leptolaimus ampullaceus Warwick, 1970 (additional source)
Metachromadora remanei Gerlach, 1951 accepted as Metachromadoroides remanei (Gerlach, 1951) Timm, 1961 (additional source)
Metachromadora vivipara (de Man, 1907) Allgen, 1928 accepted as Chromadoropsis vivipara (de Man, 1907) Allgen, 1928 (additional source)
Metadesmolaimus gaelicus Platt, 1983 (basis of record)
Metalinhomoeus biformis Juario, 1974 (ecology source)
Microlaimus marinus (Schulz, 1932) Schuurmans Stekhoven & De Coninck, 1933 (ecology source)
Microlaimus parahonestus Gerlach, 1950 (additional source)
Molgolaimus cuanensis (Platt, 1973) Jensen, 1978 (basis of record)
Monhysteridae de Man, 1876 (ecology source)
Odontophora rectangula Lorenzen, 1971 (additional source)
Odontophora setosa (Allgén, 1929) (ecology source)
Onyx sagittarius Gerlach, 1950 (additional source)
Paracanthonchus heterodontus (Schulz, 1932) Vincx et al., 1982 (additional source)
Prochromadorella ditlevseni (de Man, 1922) Wieser, 1954 (ecology source)
Sabatieria breviseta Schuurmans Stekhoven, 1935 accepted as Sabatieria pulchra (Schneider, 1906) Riemann, 1970 (additional source)
Sabatieria celtica Southern, 1914 (ecology source)
Sabatieria punctata (Kreis, 1924) (ecology source)
Sigmophoranema rufum (Cobb, 1933) Hope & Murphy, 1972 (ecology source)
Spilophorella candida Gerlach, 1951 (additional source)
Spirinia parasitifera (Bastian, 1865) Gerlach, 1963 (ecology source)
Thalassoalaimus septentrionalis Filipjev, 1927 (additional source)
Theristus (Penzancia) de Man, 1889 accepted as Theristus Bastian, 1865 (basis of record)
Theristus blandicor Rachor, 1971 (additional source)
Theristus ensifer Gerlach, 1951 (additional source)
Theristus interstitialis Warwick, 1970 (additional source)
Theristus longus Platt, 1973 (additional source)
Theristus pertenuis Schuurmans Stekhoven, 1935 (ecology source)
Theristus profundus Blome, 1982 (ecology source)
Trichotheristus mirabilis (Schuurmans Stekhoven & De Coninck, 1933) accepted as Daptonema mirabilis (Schuurmans Stekhoven & De Coninck, 1933) Tchesunov, 1990 (ecology source)
Viscosia rustica (Kreis, 1929) Lorenzen, 1974 (ecology source)
Viscosia viscosa (Bastian, 1865) de Man, 1890 (ecology source)