Actinonema pachydermatum Cobb, 1920 (taxonomy source)
Anoplostoma exceptum Schulz, 1935 (additional source)
Anoplostoma viviparum (Bastian, 1865) Bütschli, 1874 (additional source)
Antomicron elegans (de Man, 1922) De Coninck, 1965 (additional source)
Axonolaimus spinosus (Bütschli, 1874) de Man, 1889 (additional source)
Bathylaimus stenolaimus Schuurmans-Stekhoven & De Coninck, 1933 (additional source)
Campylaimus gerlachi Timm, 1961 (additional source)
Chromadorina germanica (Bütschli, 1874) Wieser, 1954 (additional source)
Daptonema fistulatum (Wieser & Hopper, 1967) Lorenzen, 1977 (additional source)
Desmodora pontica Filipjev, 1922 (additional source)
Desmolaimus de Man, 1880 (additional source)
Desmolaimus zeelandicus de Man, 1880 (additional source)
Desmoscolex americanus Chitwood, 1936 (additional source)
Desmoscolex falcatus Lorenzen, 1972 (additional source)
Eleutherolaimus stenosoma de Man, 1907 (additional source)
Enoplus communis Bastian, 1865 (taxonomy source)
Gammarinema ligiae Gerlach, 1967 (additional source)
Halalaimus gracilis de Man, 1888 (additional source)
Halalaimus isaitshikovi (Filipjev, 1927) Schuurmans Stekhoven, 1935 (additional source)
Halalaimus longicaudatus (Filipjev, 1927) Schneider, 1939 (additional source)
Laimella longicauda Cobb, 1920 (additional source)
Leptolaimoides thermastris (Lorenzen, 1966) Vitiello, 1971 (additional source)
Leptolaimus papilliger de Man, 1876 (additional source)
Leptolaimus venustus Lorenzen, 1972 (additional source)
Linhystera problematica Juario, 1974 (additional source)
Marilynia complexus (Warwick, 1971) Hopper, 1972 accepted as Marylynnia complexa (Warwick, 1971) Hopper, 1977 (additional source)
Metalinhomoeus filiformis (de Man, 1907) accepted as Desmolaimus brasiliensis Gerlach, 1963 (additional source)
Metalinhomoeus longiseta Kreis, 1929 (additional source)
Monhystera Bastian, 1865 (taxonomy source)
Nemanema cylindraticaudatum (de Man, 1922) Filipjev, 1927 (additional source)
Neochromadora Micoletzky, 1924 (additional source)
Oncholaimus dujardinii de Man, 1876 (additional source)
Oncholaimus oxyuris Ditlevsen, 1911 (additional source)
Oxystomina elongata (Bütschli, 1874) Filipjev, 1921 (additional source)
Paracanthonchus macrodon (Ditlevsen, 1918) Micoletzky, 1924 (additional source)
Paramonohystera pellucida (Cobb, 1920) (additional source)
Phanoderma cocksi Bastian, 1865 (additional source)
Pomponema elegans Lorenzen, 1972 (additional source)
Prochromadorella attenuata (Gerlach, 1952) Lorenzen, 1972 (taxonomy source)
Pselionema longissimum Gerlach, 1953 (additional source)
Ptycholaimellus ponticus (Filipjev, 1922) Gerlach, 1955 (additional source)
Quadricoma scanica (Allgén, 1935) accepted as Tricoma (Quadricoma) scanica (Allgén, 1935) (additional source)
Rhabdocoma riemanni Jayasree & Warwick, 1977 accepted as Rhabdocoma americana Cobb, 1920 (additional source)
Rhabdodemania minor (Southern, 1914) Baylis & Daubney, 1926 (additional source)
Richtersia demani Schuurmans Stekhoven, 1935 (additional source)
Sabatieria breviseta Schuurmans Stekhoven, 1935 accepted as Sabatieria pulchra (Schneider, 1906) Riemann, 1970 (additional source)
Sabatieria celtica Southern, 1914 (additional source)
Sabatieria praedatrix de Man, 1907 (additional source)
Sabatieria pulchra (Schneider, 1906) Riemann, 1970 (taxonomy source)
Sphaerolaimus balticus Schneider, 1906 (additional source)
Sphaerolaimus dispar Filipjev, 1918 accepted as Parasphaerolaimus dispar (Filipjev, 1918) Filipjev, 1946 (additional source)
Sphaerolaimus gracilis de Man, 1876 (additional source)
Sphaerolaimus macrocirculus Filipjev, 1918 (additional source)
Spilophorella candida Gerlach, 1951 (additional source)
Spilophorella paradoxa (de Man, 1888) Filipjev, 1917 (additional source)
Synonchiella riemanni Warwick, 1970 (additional source)
Terschellingia communis de Man, 1888 (additional source)
Terschellingia longicaudata de Man, 1907 (taxonomy source)
Theristus Bastian, 1865 (additional source)
Theristus acer Bastian, 1865 (additional source)
Trefusia longicauda de Man, 1893 (additional source)
Xyala striata Cobb, 1920 (additional source)