Anoplostoma viviparum (Bastian, 1865) Bütschli, 1874 (additional source)
Anticoma acuminata (Eberth, 1863) Bastian, 1865 (taxonomy source)
Chromaspirina pontica Filipjev, 1918 (additional source)
Cyatholaimus gracilis (Eberth, 1863) Bastian, 1865 (additional source)
Daptonema oxycerca (de Man, 1888) Lorenzen, 1977 (additional source)
Desmodora pontica Filipjev, 1922 (additional source)
Enoploides cirrhatus Filipjev, 1918 (additional source)
Ethmolaimidae Filipjev & Schuurmans Stekhoven, 1941 (additional source)
Eurystomina assimilis (de Man, 1876) de Man, 1888 (additional source)
Halichoanolaimus dolichurus Ssaweljev, 1912 (additional source)
Halichoanolaimus robustus (Bastian, 1865) de Man, 1886 (additional source)
Mesacanthion Filipjev, 1927 (taxonomy source)
Meyliidae De Coninck, 1965 (additional source)
Monhystera Bastian, 1865 (taxonomy source)
Monhystera longicapitata Filipjev, 1922 accepted as Thalassomonhystera longicapitata (Filipjev, 1922) (additional source)
Monhystera parva (Bastian, 1865) Butschli, 1874 accepted as Thalassomonhystera parva (Bastian, 1865) Jacobs, 1987 (additional source)
Neochromadora Micoletzky, 1924 (additional source)
Oncholaimus campylocercoides De Coninck & Schuurmans Stekhoven, 1933 (additional source)
Oncholaimus dujardinii de Man, 1876 (additional source)
Onyx perfectus Cobb, 1891 (additional source)
Paracanthonchus caecus (Bastian, 1865) Micoletzky, 1924 (additional source)
Paramonohystera elliptica (Filipjev, 1918) (additional source)
Pelagonema obtusicauda Filipjev, 1918 (additional source)
Pomponema multipapillatum (Filipjev, 1922) Wieser, 1954 (additional source)
Quadricoma suecica (Allgén, 1930) Timm, 1970 accepted as Tricoma (Quadricoma) suecica (Allgén, 1930) (additional source)
Quadricoma vittata (Lorenzen, 1969) accepted as Desmoscolex (Desmolorenzenia) vittatus Lorenzen, 1969 (additional source)
Sabatieria longicaudata Filipjev, 1922 (additional source)
Sabatieria ornata (Ditlevsen, 1918) Filipjev, 1922 (taxonomy source)
Sabatieria pulchra (Schneider, 1906) Riemann, 1970 (taxonomy 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)
Sphaerolaimus ostreae Filipjev, 1918 (additional source)
Spilophorella paradoxa (de Man, 1888) Filipjev, 1917 (additional source)
Spirinia parasitifera (Bastian, 1865) Gerlach, 1963 (additional source)
Symplocostoma tenuicolle (Eberth, 1863) Wieser, 1953 (additional source)
Theristus Bastian, 1865 (additional source)
Viscosia cobbi Filipjev, 1918 (additional source)
Viscosia glabra (Bastian, 1865) de Man, 1890 (additional source)