Ascolaimus elongatus (Bütschli, 1874) Shuurmans Stekhoven & de Coninck, 1932 (additional source)
Axonolaimus spinosus (Bütschli, 1874) de Man, 1889 (additional source)
Calomicrolaimus honestus (de Man, 1922) Jensen, 1978 accepted as Microlaimus honestus De Man, 1922 (additional source)
Camacolaimus tardus de Man, 1889 accepted as Deontolaimus tardus (de Man, 1889) Holovachov & Boström, 2015 (additional source)
Chitwoodia warwicki Jayasree, 1976 (additional source)
Chromadorita nana Lorenzen, 1973 (additional source)
Cobbia trefusiaeformis de Man, 1907 (additional source)
Cricolaimus elongatus Southern, 1914 (additional source)
Cyartonema elegans Jayasree & Warwick, 1977 (additional source)
Cyartonema germanicum Juario, 1972 (ecology source)
Dagda bipapillata Southern, 1914 (additional source)
Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (additional source)
Daptonema setifer (Gerlach, 1952) Lorenzen, 1977 (additional source)
Daptonema tenuispiculum (Ditlevsen, 1918) Lorenzen, 1977 (additional source)
Dichromadora cucullata Lorenzen, 1973 (additional source)
Diplopeltula incisa (Southern, 1914) Gerlach, 1962 accepted as Neodiplopeltula incisa (Southern, 1914) Holovachov & Boström, 2018 (additional source)
Leptolaimus elegans (Stekhoven & De Coninck, 1933) Gerlach, 1958 (additional source)
Leptolaimus luridus Timm, 1963 (additional source)
Leptonemella aphanothecae Gerlach, 1950 (additional source)
Linhomoeus elongatus Bastian, 1865 (additional source)
Marilynia complexus (Warwick, 1971) Hopper, 1972 accepted as Marylynnia complexa (Warwick, 1971) Hopper, 1977 (additional source)
Mesacanthion diplechma (Southern, 1914) Filipjev, 1927 (additional source)
Metalinhomoeus filiformis (de Man, 1907) accepted as Desmolaimus brasiliensis Gerlach, 1963 (additional source)
Metalinhomoeus longiseta Kreis, 1929 (additional source)
Metoncholaimus scanicus (Allgén, 1935) accepted as Oncholaimus scanicus (Allgén, 1935) Wieser, 1953 (additional source)
Microlaimus conothelis (Lorenzen, 1973) Jensen, 1978 (additional source)
Neochromadora munita Lorenzen, 1971 (additional source)
Oxystomina asetosa (Southern, 1914) Filipjev, 1921 (additional source)
Oxystomina elongata (Bütschli, 1874) Filipjev, 1921 (additional source)
Paracanthonchus heterodontus (Schulz, 1932) Vincx et al., 1982 (additional source)
Paracanthonchus longicaudatus Warwick, 1971 (ecology source)
Paracanthonchus longus Allgén, 1934 (additional source)
Paralongicyatholaimus minutus Warwick, 1971 (additional source)
Polysigma fuscum Gerlach, 1956 (additional source)
Pomponema debile Lorenzen, 1972 (additional source)
Prochromadorella attenuata (Gerlach, 1952) Lorenzen, 1972 (additional source)
Prochromadorella ditlevseni (de Man, 1922) Wieser, 1954 (additional source)
Pseudonchus deconincki Warwick, 1969 (additional source)
Rhabdocoma americana Cobb, 1920 (additional source)
Rhabdodemania major (Southern, 1914) Baylis & Daubney, 1926 (additional source)
Sabatieria celtica Southern, 1914 (additional source)
Sabatieria longispinosa Lorenzen, 1971 (additional source)
Sabatieria ornata (Ditlevsen, 1918) Filipjev, 1922 (additional source)
Sabatieria praedatrix de Man, 1907 (additional source)
Sabatieria pulchra (Schneider, 1906) Riemann, 1970 (additional source)
Sabatieria punctata (Kreis, 1924) (additional source)
Setosabatieria hilarula (de Man, 1922) (additional source)
Sphaerolaimus balticus Schneider, 1906 (additional source)
Spirinia parasitifera (Bastian, 1865) Gerlach, 1963 (additional source)
Terschellingia longicaudata de Man, 1907 (additional source)
Theristus denticulatus Warwick, 1970 (additional source)
Tripyloides marinus (Bütschli, 1874) de Man, 1886 (additional source)
Viscosia elegans (Kreis, 1924) Lorenzen, 1981 (additional source)