Ammotheristus Lorenzen, 1977 (additional source)
Ammotheristus helgolandicus (Riemann, 1967) Lorenzen, 1977 (taxonomy source)
Ammotheristus subtilis (Lorenzen, 1972) Lorenzen, 1977 (taxonomy source)
Amphimonhystera Allgén, 1929 (taxonomy source)
Amphimonhystera anechma (Southern, 1914) Lorenzen, 1977 (taxonomy source)
Amphimonhystera paranechma Allgén, 1935 (taxonomy source)
Amphimonhystera subtilis Lorenzen, 1972 accepted as Ammotheristus subtilis (Lorenzen, 1972) Lorenzen, 1977 (source of synonymy)
Amphimonhystrella Timm, 1961 (taxonomy source)
Cobbia de Man, 1907 (taxonomy source)
Cobbia caledonia Warwick & Platt, 1973 (taxonomy source)
Cobbia dentata Gerlach, 1953 (taxonomy source)
Cobbia simplex Allgén, 1929 (additional source)
Cobbia trefusiaeformis de Man, 1907 (status source)
Daptonema Cobb, 1920 (status source)
Daptonema acrilabiatum (De Coninck & Schuurmans Stekhoven, 1933) Lorenzen, 1977 (status source)
Daptonema adiecta (Schulz, 1932) Wieser, 1956 (status source)
Daptonema buetschlii Schuurmans-Stekhoven, 1935 accepted as Paramonohystera buetschlii (Bresslau & Schuurmans Stekhoven in Schuurmans Stekhoven, 1935) (status source)
Daptonema longicaudatum (Filipjev, 1922) Lorenzen, 1977 (status source)
Daptonema trichospiculum (Allgén, 1933) Wieser, 1956 (status source)
Daptonema vietnamensis Venekey, Gheller, Maria, Brustolin, Kandratavicius, Vieira, Brito, Souza & Fonseca, 2014 (status source)
Echinotheristus Thun & Riemann, 1967 (status source)
Echinotheristus cimbricus Thun & Riemann, 1967 (status source)
Echinotheristus teutonicus Thun & Riemann, 1967 (status source)
Elzalia Gerlach, 1957 (taxonomy source)
Elzalia mediterranea Vitiello, 1971 (status source)
Filipjeva Ditlevsen, 1928 (taxonomy source)
Filipjeva arctica Ditlevsen, 1928 (status source)
Filipjeva mediterranea Schuurmans Stekhoven, 1950 (status source)
Filipjeva meridionalis Kreis, 1932 (status source)
Filipjeva parameridionalis Vitiello, 1970 (status source)
Gnomoxyala Lorenzen, 1977 (status source)
Gonionchus Cobb, 1920 (taxonomy source)
Gonionchus cumbraensis Benwell, 1981 (status source)
Gonionchus heipi Vincx, 1986 (status source)
Gonionchus inaequalis Warwick & Platt, 1973 (status source)
Gonionchus longicaudatus (Ward, 1972) Lorenzen, 1977 (status source)
Gonionchus paravillosus Blome, 1982 (status source)
Gonionchus villosus Cobb, 1920 (status source)
Hofmaenneria Gerlach & Meyl, 1957 (additional source)
Manganonema Bussau, 1993 (status source)
Omicronema nidrosiense Allgén, 1933 (status source)
Omicronema truncatum Schuurmans Stekhoven, 1950 (status source)
Paramonohystera Steiner, 1916 (status source)
Paramonohystera megacephala Steiner, 1916 (status source)
Paramonohystera micramphis Schuurmans Stekhoven, 1950 (status source)
Promonhystera Wieser, 1956 (status source)
Promonhystera faber Wieser, 1956 (status source)
Prorhynchonema Gourbault, 1982 (status source)
Pseudosteineria Wieser, 1956 (status source)
Pseudosteineria coronata (Gerlach, 1955) Wieser, 1959 (status source)
Pseudosteineria horrida (Steiner, 1916) Wieser, 1956 (status source)
Scaptrella Cobb, 1917 (additional source)
Scaptrella brevicaudata Gerlach, 1953 (taxonomy source)
Scaptrella cincta Cobb, 1917 (additional source)
Scaptrella tenuicaudata Gerlach, 1956 (additional source)
Steineria Micoletzky, 1922 (status source)
Stylotheristus Lorenzen, 1977 (status source)
Stylotheristus mutilus (Lorenzen, 1973) Lorenzen, 1977 (status source)
Theristus Bastian, 1865 (taxonomy source)
Theristus latissimus (Filipjev, 1922) (status source)
Theristus leptosoma Allgén, 1950 (status source)
Theristus obtusicephalus Schuurmans Stekhoven, 1950 (status source)
Trichotheristus Wieser, 1956 accepted as Daptonema Cobb, 1920 (additional source)
Trichotheristus mirabilis (Schuurmans Stekhoven & De Coninck, 1933) accepted as Daptonema mirabilis (Schuurmans Stekhoven & De Coninck, 1933) Tchesunov, 1990 (status source)
Trichotheristus psammoides (Warwick, 1970) Gerlach & Riemann, 1973 accepted as Daptonema psammoides (Warwick, 1970) Tchesunov, 1990 (status source)
Valvaelaimus Lorenzen, 1977 (status source)
Xenolaimus Cobb, 1920 (status source)
Xyala Cobb, 1920 (taxonomy source)
Xyala riemanni Boucher & Helléouët, 1977 (status source)
Xyalidae Chitwood, 1951 (taxonomy source)