ARMS Taxon list
Daptonema arcticus (Steiner, 1916) Filipjev, 1922 (uncertain > taxon inquirendum )
Daptonema furcatum (Juario, 1974) Lorenzen, 1977
Daptonema hirsutum (Vitiello, 1967) Lorenzen, 1977
Daptonema longicaudatum (Filipjev, 1922) Lorenzen, 1977 (uncertain > taxon inquirendum )
Daptonema platonovae (Galtsova, 1976) Tchesunov, 1990
Daptonema procerum (Gerlach, 1951) Lorenzen, 1977
Daptonema setosum (Bütschli, 1874) Lorenzen, 1977
Daptonema voskresenskii Tchesunov, 1990
Marisalbinema galtsovae Tchesunov, 1990
Metadesmolaimus psammophilus Tchesunov, 1990
Metadesmolaimus similis Tchesunov, 1990
Paramonohystera filamentosa Tchesunov, 1990 (uncertain )
Paramonohystera megacephala Steiner, 1916
Parasphaerolaimus islandicus (Ditlevsen, 1926) Filipjev, 1946 (uncertain > taxon inquirendum )
Parasphaerolaimus paradoxus Ditlevsen, 1918
Parasphaerolaimus polaris Filipjev, 1946
Parasphaerolaimus striatus (Allgén, 1935) Cavalcanti & Venekey, 2017 (uncertain > taxon inquirendum )
Parelzalia obscuramphis Tchesunov, 1990
Pseudosteineria horrida (Steiner, 1916) Wieser, 1956
Rhynchonema lyngei (Allgén, 1940) Gerlach, 1953
Sphaerolaimus abeskunus Tchesunov, 1980
Sphaerolaimus balticus Schneider, 1906
Sphaerolaimus brevicollis Ssaweljev, 1912 (uncertain > taxon inquirendum )
Sphaerolaimus gracilis de Man, 1876
Sphaerolaimus hirsutus Bastian, 1865
Sphaerolaimus islandicus Ditlevsen, 1926 accepted as Parasphaerolaimus islandicus (Ditlevsen, 1926) Filipjev, 1946
Sphaerolaimus makrolasius Schulz, 1932
Sphaerolaimus polaris (Filipjev, 1946) accepted as Parasphaerolaimus polaris Filipjev, 1946
Sphaerolaimus solivagus Galtsova, Platonova, Streltsova & Petukhov, 1980
Sphaerolaimus striatus Allgén, 1935 accepted as Parasphaerolaimus striatus (Allgén, 1935) Cavalcanti & Venekey, 2017
Sphaerolaimus valentinae Tchesunov, 1987
Steineria pilosa Cobb, 1914
Theristus acer Bastian, 1865
Theristus blandicor Rachor, 1971
Theristus complexus Jayasree & Warwick, 1977
Theristus flevensis Schuurmans Stekhoven, 1935
Theristus longus Platt, 1973
Theristus melnikovi Tchesunov, 1986
Theristus streltzovi Galtsova, Platonova, Streltsova & Petukhov, 1980