Ascolaimus elongatus (Bütschli, 1874) Shuurmans Stekhoven & de Coninck, 1932 (additional source)
Axonolaimus helgolandicus Lorenzen, 1971 (additional source)
Axonolaimus hexapilus Wieser & Hopper, 1967 (additional source)
Calomicrolaimus honestus (de Man, 1922) Jensen, 1978 accepted as Microlaimus honestus De Man, 1922 (additional source)
Camacolaimus longicauda de Man, 1922 accepted as Deontolaimus longicauda (de Man, 1922) Holovachov & Boström, 2015 (additional source)
Choanolaimus psammophilus de Man, 1880 (additional source)
Chromadorina germanica (Bütschli, 1874) Wieser, 1954 (additional source)
Daptonema normandicus (de Man, 1890) accepted as Daptonema normandicum (de Man, 1890) Lorenzen, 1977 (additional source)
Enoplolaimus litoralis Schulz, 1936 (additional source)
Epsilonema pustulatum (Gerlach, 1952) (additional source)
Hypodontolaimus schuurmansstekhoveni Gerlach, 1951 (additional source)
Leptolaimus setiger Schuurmans Stekhoven & De Coninck, 1933 (additional source)
Mesacanthion diplechma (Southern, 1914) Filipjev, 1927 (additional source)
Metachromadora remanei Gerlach, 1951 accepted as Metachromadoroides remanei (Gerlach, 1951) Timm, 1961 (additional source)
Metadesmolaimus gelana (Warwick & Platt, 1973) Lorenzen, 1977 (additional source)
Microlaimus marinus (Schulz, 1932) Schuurmans Stekhoven & De Coninck, 1933 (additional source)
Monoposthia costata (Bastian, 1865) de Man, 1889 (additional source)
Monoposthia mirabilis Schulz, 1932 (additional source)
Onyx perfectus Cobb, 1891 (additional source)
Paracanthonchus thaumasius (Schulz, 1932) Vincx et al., 1982 (additional source)
Spilophorella candida Gerlach, 1951 (additional source)
Stephanolaimus gandavensis Jensen, 1976 accepted as Setostephanolaimus gandavensis (Jensen, 1976) Tchesunov, 1994 (additional source)
Theristus otoplanobius Gerlach, 1951 (additional source)
Viscosia de Man, 1890 (additional source)
Xyala striata Cobb, 1920 (additional source)