Adoncholaimus fuscus (Bastian, 1865) Filipjev, 1918 (additional source)
Adoncholaimus lepidus (de Man, 1889) Filipjev, 1918 (additional source)
Adoncholaimus thalassophygas (de Man, 1876) Filipjev, 1918 (additional source)
Aegialoalaimus elegans de Man, 1907 (additional source)
Anoplostoma viviparum (Bastian, 1865) Bütschli, 1874 (additional source)
Antomicron elegans (de Man, 1922) De Coninck, 1965 (additional source)
Ascolaimus elongatus (Bütschli, 1874) Shuurmans Stekhoven & de Coninck, 1932 (additional source)
Axonolaimus paraspinosus Schuurmans Stekhoven & Adam, 1931 (additional source)
Calyptronema maxweberi (de Man, 1922) (additional source)
Camacolaimus tardus de Man, 1889 accepted as Deontolaimus tardus (de Man, 1889) Holovachov & Boström, 2015 (additional source)
Chromadora nudicapitata Bastian, 1865 (additional source)
Chromadorina granulopigmentata (Wieser, 1951) Wieser, 1954 (additional source)
Chromadorita tenuis (G. Schneider, 1906) Filipjev, 1922 (additional source)
Desmolaimus zeelandicus de Man, 1880 (additional source)
Dichromadora cephalata (Steiner, 1916) Kreis, 1929 (additional source)
Diplolaimella stagnosa Lorenzen, 1966 (additional source)
Enoplus brevis Bastian, 1865 (additional source)
Halalaimus gracilis de Man, 1888 (additional source)
Halichoanolaimus robustus (Bastian, 1865) de Man, 1886 (additional source)
Haliplectus dorsalis Cobb in Chitwood, 1956 (additional source)
Hypodontolaimus balticus (G. Schneider, 1906) Filipjev, 1918 (additional source)
Leptolaimus elegans (Stekhoven & De Coninck, 1933) Gerlach, 1958 (additional source)
Leptolaimus papilliger de Man, 1876 (additional source)
Metachromadora remanei Gerlach, 1951 accepted as Metachromadoroides remanei (Gerlach, 1951) Timm, 1961 (additional source)
Microlaimus robustidens Schuurmans Stekhoven & De Coninck, 1933 (additional source)
Monhystera disjuncta Bastian, 1865 accepted as Halomonhystera disjuncta (Bastian, 1865) Andrássy, 2006 (additional source)
Monhystera parva (Bastian, 1865) Butschli, 1874 accepted as Thalassomonhystera parva (Bastian, 1865) Jacobs, 1987 (additional source)
Odontophora armata (Ditlevsen, 1918) Allgén, 1929 (additional source)
Oncholaimus oxyuris Ditlevsen, 1911 (additional source)
Oxystomina elongata (Bütschli, 1874) Filipjev, 1921 (redescription)
Paracyatholaimus intermedius (de Man, 1880) Micoletzky, 1922 (additional source)
Sabatieria celtica Southern, 1914 (additional source)
Sphaerolaimus gracilis de Man, 1876 (redescription)
Sphaerolaimus hirsutus Bastian, 1865 (additional source)
Spilophorella paradoxa (de Man, 1888) Filipjev, 1917 (additional source)
Stephanolaimus spartinae Lorenzen, 1969 accepted as Setostephanolaimus spartinae (Lorenzen, 1969) Tchesunov, 1994 (original description)
Thalassoalaimus tardus de Man, 1893 (additional source)
Theristus ensifer Gerlach, 1951 (additional source)
Theristus pertenuis Schuurmans Stekhoven, 1935 (additional source)
Tripyloides marinus (Bütschli, 1874) de Man, 1886 (additional source)
Viscosia viscosa (Bastian, 1865) de Man, 1890 (additional source)