Acantholaimus ewensis Platt & Zhang, 1982 accepted as Acantholaimus polydentatus Gerlach, 1951 (basis of record)
Acantholaimus longisetosus Allgén, 1933 (basis of record)
Acantholaimus polydentatus Gerlach, 1951 (basis of record)
Acantholaimus setosus Vitiello, 1970 (basis of record)
Acanthonchus viviparus Cobb, 1920 accepted as Acanthonchus (Acanthonchus) viviparus Cobb, 1920 (basis of record)
Acanthopharyngoides tyrrhenicus Wieser, 1954 (basis of record)
Acanthopharynx affinis Marion, 1870 (basis of record)
Acanthopharynx micans (Eberth, 1863) Marion, 1870 (basis of record)
Acanthopharynx micramphis Schuurmans Stekhoven, 1942 (basis of record)
Acanthopharynx perarmata Marion, 1870 (basis of record)
Acanthopharynx rigida Schuurmans Stekhoven, 1950 (basis of record)
Acanthopharynx setosissima Schuurmans Stekhoven, 1943 (basis of record)
Actinonema celtica Boucher, 1976 (basis of record)
Actinonema fidatum Vitiello, 1970 (basis of record)
Actinonema longicaudatum (Steiner, 1918) Wieser, 1954 (basis of record)
Actinonema pachydermatum Cobb, 1920 (basis of record)
Adeuchromadora megamphida Boucher & Bovée, 1972 accepted as Actinonema pachydermatum Cobb, 1920 (basis of record)
Adoncholaimus derjugini (Ssaweljev, 1912) (basis of record)
Adoncholaimus fuscus (Bastian, 1865) Filipjev, 1918 (basis of record)
Adoncholaimus islandicus Kreis, 1963 (basis of record)
Adoncholaimus lepidus (de Man, 1889) Filipjev, 1918 (basis of record)
Adoncholaimus panicus Cobb, 1930 (basis of record)
Adoncholaimus thalassophygas (de Man, 1876) Filipjev, 1918 (basis of record)
Aegialoalaimus elegans de Man, 1907 (basis of record)
Aegialoalaimus punctatus (Allgén, 1929) (basis of record)
Aegialoalaimus tenuicaudatus Allgén, 1932 (basis of record)
Aegialoalaimus tenuis Kreis, 1928 (basis of record)
Alaimella cincta Cobb, 1920 (basis of record)
Amphidelus puccinelliae Lorenzen, 1966 accepted as Paramphidelus puccinelliae (Lorenzen, 1966) Coomans & Raski, 1988 (basis of record)
Amphimonhystera anechma (Southern, 1914) Lorenzen, 1977 (basis of record)
Amphimonhystera helgolandica Riemann, 1967 accepted as Ammotheristus helgolandicus (Riemann, 1967) Lorenzen, 1977 (basis of record)
Amphimonhystera paranechma Allgén, 1935 (basis of record)
Amphimonhystera subtilis Lorenzen, 1972 accepted as Ammotheristus subtilis (Lorenzen, 1972) Lorenzen, 1977 (basis of record)
Anoplostoma blanchardi de Man, 1888 accepted as Anoplostoma campbelli Allgén, 1932 (basis of record)
Anoplostoma elegans Kreis, 1929 (basis of record)
Anoplostoma exceptum Schulz, 1935 (basis of record)
Anoplostoma viviparum (Bastian, 1865) Bütschli, 1874 (basis of record)
Anticoma acuminata (Eberth, 1863) Bastian, 1865 (basis of record)
Anticoma arctica Steiner, 1916 (basis of record)
Anticoma brevicaudata Kreis, 1963 (basis of record)
Anticoma brevisetosa Platonova, 1967 (basis of record)
Anticoma eberthi Bastian, 1865 (basis of record)
Anticoma insulaealbae Filipjev, 1927 (basis of record)
Anticoma longicaudata Kreis, 1928 (basis of record)
Anticoma minor Filipjev, 1927 (basis of record)
Anticoma murmanica Filipjev, 1927 accepted as Odontanticoma murmanica (Filipjev, 1927) Platonova, 1976 (basis of record)
Anticoma pellucida Bastian, 1865 accepted as Anticoma limalis novozemelica Filipjev, 1927 accepted as Anticoma acuminata (Eberth, 1863) Bastian, 1865 (basis of record)
Anticoma stekhoveni Wieser, 1953 accepted as Anticoma wieseri Mawson, 1958 (basis of record)
Anticoma strandi Allgén, 1940 (basis of record)
Anticomopsis typica Micoletzky, 1930 (basis of record)
Anticyathus primitivus (Allgén, 1933) Gerlach, 1963 (basis of record)
Anticyclus exilis Cobb, 1920 (basis of record)
Anticyclus gigas Vitiello, 1969 (basis of record)
Anticyclus pachyamphis (Wieser, 1956) Gerlach, 1963 (basis of record)
Antomicron elegans (de Man, 1922) De Coninck, 1965 (basis of record)
Antomicron pellucidum Cobb, 1920 (basis of record)
Antomicron pratense Lorenzen, 1966 (basis of record)
Antomicron profundum Vitiello, 1971 (basis of record)
Aponema torosus (Lorenzen, 1973) Jensen, 1978 accepted as Aponema torosum (Lorenzen, 1973) Jensen, 1978 (basis of record)
Araeolaimus bioculatus (de Man, 1876) de Man, 1988 (basis of record)
Araeolaimus demani (Schuurmans Stekhoven, 1950) Wieser, 1956 (basis of record)
Araeolaimus elegans de Man, 1888 (basis of record)
Araeolaimus filipjevi Schuurmans Stekhoven & Adam, 1931 (basis of record)
Araeolaimus gajevskii Paramonov, 1929 (basis of record)
Araeolaimus longicauda Allgén, 1929 (basis of record)
Araeolaimus longisetosus Wieser, 1954 (basis of record)
Araeolaimus macrocirculus Kreis, 1928 (basis of record)
Araeolaimus mediterraneus (de Man, 1876) de Man, 1888 (basis of record)
Araeolaimus microphthalmus (de Man, 1893) Filipjev, 1918 accepted as Araeolaimoides microphthalmus de Man, 1893 (basis of record)
Araeolaimus paucisetosus Wieser, 1951 accepted as Araeolaimoides paucisetosus Wieser, 1951 (basis of record)
Araeolaimus penelope Moore, 1977 (basis of record)
Araeolaimus ponticus Filipjev, 1922 (basis of record)
Araeolaimus septentrionalis Kreis, 1963 (basis of record)
Araeolaimus steineri (Steiner, 1916) Filipjev, 1922 (basis of record)
Araeolaimus supralitoralis Wieser, 1960 (basis of record)
Araeolaimus tenuicaudatus Allgén, 1959 accepted as Araeolaimus tenuicauda Gerlach & Riemann, 1973 (basis of record)
Araeolaimus zosterae (Filipjev, 1918) Chitwood & Chitwood, 1937 (1938) (basis of record)
Ascolaimus elongatus (Bütschli, 1874) Shuurmans Stekhoven & de Coninck, 1932 (basis of record)
Astomonema southwardorum Austen, Warwick & Ryan, 1993 (basis of record)
Atrochromadora microlaima (de Man, 1889) Wieser, 1954 (basis of record)
Atrochromadora parva (de Man, 1893) Wieser, 1954 (basis of record)
Austranema shirleyae (Coles, 1965) Inglis, 1969 accepted as Parapinnanema shirleyae (Coles, 1965) Warwick & Coles, 1975 (basis of record)
Axonolaimus arcuatus Schuurmans Stekhoven, 1950 (basis of record)
Axonolaimus demani De Coninck & Schuurmans Stekhoven, 1933 (basis of record)
Axonolaimus drachi Luc & De Coninck, 1959 (basis of record)
Axonolaimus filiformis de Man, 1889 (basis of record)
Axonolaimus helgolandicus Lorenzen, 1971 (basis of record)
Axonolaimus hexapilus Wieser & Hopper, 1967 (basis of record)
Axonolaimus limalis Ssaweljev, 1912 (basis of record)
Axonolaimus orcombensis Warwick, 1970 (basis of record)
Axonolaimus paraspinosus Schuurmans Stekhoven & Adam, 1931 (basis of record)
Axonolaimus ponticus Filipjev, 1918 (basis of record)
Axonolaimus schuurmansstekhoveni Allgén, 1935 (basis of record)
Axonolaimus setosus Filipjev, 1918 (basis of record)
Axonolaimus spinosus (Bütschli, 1874) de Man, 1889 (basis of record)
Axonolaimus tirrenicus Brunetti, 1941 (basis of record)
Axonolaimus typicus de Man, 1922 (basis of record)
Axonolaimus villosus Skwarra, 1922 (basis of record)
Barbonema horridum Gerlach, 1956 (basis of record)
Barbonema setiferum Filipjev, 1927 (basis of record)

European waters (ERMS scope) for Acantholaimus ewensis Platt & Zhang, 1982 
European waters (ERMS scope) for Acantholaimus longisetosus Allgén, 1933 
European waters (ERMS scope) for Acantholaimus polydentatus Gerlach, 1951 
European waters (ERMS scope) for Acantholaimus setosus Vitiello, 1970 
European waters (ERMS scope) for Acanthonchus (Acanthonchus) arcuatus (Kreis, 1928) Wieser, 1955 
European waters (ERMS scope) for Acanthonchus (Seuratiella) gracilis (Ditlevsen, 1918) Wieser, 1955 
European waters (ERMS scope) for Acanthonchus (Seuratiella) pugionatus Vitiello, 1970 
European waters (ERMS scope) for Acanthonchus viviparus Cobb, 1920 
European waters (ERMS scope) for Acanthopharyngoides tyrrhenicus Wieser, 1954 
European waters (ERMS scope) for Acanthopharynx affinis Marion, 1870 
European waters (ERMS scope) for Acanthopharynx micans (Eberth, 1863) Marion, 1870 
European waters (ERMS scope) for Acanthopharynx micramphis Schuurmans Stekhoven, 1942 
European waters (ERMS scope) for Acanthopharynx perarmata Marion, 1870 
European waters (ERMS scope) for Acanthopharynx rigida Schuurmans Stekhoven, 1950 
European waters (ERMS scope) for Acanthopharynx setosissima Schuurmans Stekhoven, 1943 
European waters (ERMS scope) for Actinonema celtica Boucher, 1976 
European waters (ERMS scope) for Actinonema fidatum Vitiello, 1970 
European waters (ERMS scope) for Actinonema longicaudatum (Steiner, 1918) Wieser, 1954 
European waters (ERMS scope) for Actinonema pachydermatum Cobb, 1920 
European waters (ERMS scope) for Adeuchromadora megamphida Boucher & Bovée, 1972 
European waters (ERMS scope) for Adoncholaimus derjugini (Ssaweljev, 1912) 
European waters (ERMS scope) for Adoncholaimus fuscus (Bastian, 1865) Filipjev, 1918 
European waters (ERMS scope) for Adoncholaimus islandicus Kreis, 1963 
European waters (ERMS scope) for Adoncholaimus lepidus (de Man, 1889) Filipjev, 1918 
European waters (ERMS scope) for Adoncholaimus panicus Cobb, 1930 
European waters (ERMS scope) for Adoncholaimus thalassophygas (de Man, 1876) Filipjev, 1918 
European waters (ERMS scope) for Aegialoalaimus elegans de Man, 1907 
European waters (ERMS scope) for Aegialoalaimus punctatus (Allgén, 1929) 
European waters (ERMS scope) for Aegialoalaimus tenuicaudatus Allgén, 1932 
European waters (ERMS scope) for Aegialoalaimus tenuis Kreis, 1928 
European waters (ERMS scope) for Alaimella cincta Cobb, 1920 
European waters (ERMS scope) for Amphidelus puccinelliae Lorenzen, 1966 
European waters (ERMS scope) for Amphimonhystera anechma (Southern, 1914) Lorenzen, 1977 
European waters (ERMS scope) for Amphimonhystera helgolandica Riemann, 1967 
European waters (ERMS scope) for Amphimonhystera paranechma Allgén, 1935 
European waters (ERMS scope) for Amphimonhystera subtilis Lorenzen, 1972 
European waters (ERMS scope) for Anoplostoma blanchardi de Man, 1888 
European waters (ERMS scope) for Anoplostoma elegans Kreis, 1929 
European waters (ERMS scope) for Anoplostoma exceptum Schulz, 1935 
European waters (ERMS scope) for Anoplostoma viviparum (Bastian, 1865) Bütschli, 1874 
European waters (ERMS scope) for Anticoma acuminata (Eberth, 1863) Bastian, 1865 
European waters (ERMS scope) for Anticoma arctica Steiner, 1916 
European waters (ERMS scope) for Anticoma brevicaudata Kreis, 1963 
European waters (ERMS scope) for Anticoma brevisetosa Platonova, 1967 
European waters (ERMS scope) for Anticoma eberthi Bastian, 1865 
European waters (ERMS scope) for Anticoma insulaealbae Filipjev, 1927 
European waters (ERMS scope) for Anticoma longicaudata Kreis, 1928 
European waters (ERMS scope) for Anticoma minor Filipjev, 1927 
European waters (ERMS scope) for Anticoma murmanica Filipjev, 1927 
European waters (ERMS scope) for Anticoma pellucida Bastian, 1865 
European waters (ERMS scope) for Anticoma stekhoveni Wieser, 1953 
European waters (ERMS scope) for Anticoma strandi Allgén, 1940 
European waters (ERMS scope) for Anticomopsis typica Micoletzky, 1930 
European waters (ERMS scope) for Anticyathus primitivus (Allgén, 1933) Gerlach, 1963 
European waters (ERMS scope) for Anticyclus exilis Cobb, 1920 
European waters (ERMS scope) for Anticyclus gigas Vitiello, 1969 
European waters (ERMS scope) for Anticyclus pachyamphis (Wieser, 1956) Gerlach, 1963 
European waters (ERMS scope) for Antomicron elegans (de Man, 1922) De Coninck, 1965 
European waters (ERMS scope) for Antomicron pellucidum Cobb, 1920 
European waters (ERMS scope) for Antomicron pratense Lorenzen, 1966 
European waters (ERMS scope) for Antomicron profundum Vitiello, 1971 
European waters (ERMS scope) for Aponema torosus (Lorenzen, 1973) Jensen, 1978 
European waters (ERMS scope) for Araeolaimus bioculatus (de Man, 1876) de Man, 1988 
European waters (ERMS scope) for Araeolaimus demani (Schuurmans Stekhoven, 1950) Wieser, 1956 
European waters (ERMS scope) for Araeolaimus elegans de Man, 1888 
European waters (ERMS scope) for Araeolaimus filipjevi Schuurmans Stekhoven & Adam, 1931 
European waters (ERMS scope) for Araeolaimus gajevskii Paramonov, 1929 
European waters (ERMS scope) for Araeolaimus longicauda Allgén, 1929 
European waters (ERMS scope) for Araeolaimus longisetosus Wieser, 1954 
European waters (ERMS scope) for Araeolaimus macrocirculus Kreis, 1928 
European waters (ERMS scope) for Araeolaimus mediterraneus (de Man, 1876) de Man, 1888 
European waters (ERMS scope) for Araeolaimus microphthalmus (de Man, 1893) Filipjev, 1918 
European waters (ERMS scope) for Araeolaimus paucisetosus Wieser, 1951 
European waters (ERMS scope) for Araeolaimus penelope Moore, 1977 
European waters (ERMS scope) for Araeolaimus ponticus Filipjev, 1922 
European waters (ERMS scope) for Araeolaimus septentrionalis Kreis, 1963 
European waters (ERMS scope) for Araeolaimus steineri (Steiner, 1916) Filipjev, 1922 
European waters (ERMS scope) for Araeolaimus supralitoralis Wieser, 1960 
European waters (ERMS scope) for Araeolaimus tenuicaudatus Allgén, 1959 
European waters (ERMS scope) for Araeolaimus zosterae (Filipjev, 1918) Chitwood & Chitwood, 1937 (1938) 
European waters (ERMS scope) for Ascolaimus elongatus (Bütschli, 1874) Shuurmans Stekhoven & de Coninck, 1932 
European waters (ERMS scope) for Astomonema southwardorum Austen, Warwick & Ryan, 1993 
European waters (ERMS scope) for Atrochromadora microlaima (de Man, 1889) Wieser, 1954 
European waters (ERMS scope) for Atrochromadora parva (de Man, 1893) Wieser, 1954 
European waters (ERMS scope) for Austranema shirleyae (Coles, 1965) Inglis, 1969 
European waters (ERMS scope) for Axonolaimus arcuatus Schuurmans Stekhoven, 1950 
European waters (ERMS scope) for Axonolaimus demani De Coninck & Schuurmans Stekhoven, 1933 
European waters (ERMS scope) for Axonolaimus drachi Luc & De Coninck, 1959 
European waters (ERMS scope) for Axonolaimus filiformis de Man, 1889 
European waters (ERMS scope) for Axonolaimus helgolandicus Lorenzen, 1971 
European waters (ERMS scope) for Axonolaimus hexapilus Wieser & Hopper, 1967 
European waters (ERMS scope) for Axonolaimus limalis Ssaweljev, 1912 
European waters (ERMS scope) for Axonolaimus orcombensis Warwick, 1970 
European waters (ERMS scope) for Axonolaimus paraspinosus Schuurmans Stekhoven & Adam, 1931 
European waters (ERMS scope) for Axonolaimus ponticus Filipjev, 1918 
European waters (ERMS scope) for Axonolaimus schuurmansstekhoveni Allgén, 1935 
European waters (ERMS scope) for Axonolaimus setosus Filipjev, 1918 
European waters (ERMS scope) for Axonolaimus spinosus (Bütschli, 1874) de Man, 1889 
European waters (ERMS scope) for Axonolaimus tirrenicus Brunetti, 1941 
European waters (ERMS scope) for Axonolaimus typicus de Man, 1922