Buetschlinema Sudhaus, 2011 (original description)
Buetschlinema buetschlii (de Man, 1876) Sudhaus, 2011 (taxonomy source)
Buetschlinema friderici (Hirschmann in Osche, 1952) Sudhaus, 2011 (taxonomy source)
Buetschlinema nidrosiensis (Allgén, 1933) Sudhaus, 2011 (taxonomy source)
Buetschlinema pellioides (Bütschli, 1873) Sudhaus, 2011 (taxonomy source)
Buetschlinema validum (Sudhaus, 1974) Sudhaus, 2011 (taxonomy source)
Caenorhabditis Osche, 1952 (taxonomy source)
Caenorhabditis angaria Sudhaus, Kiontke & Giblin-Davis, 2011 (taxonomy source)
Caenorhabditis anthobia (W. Schneider, 1937) Sudhaus, 1974 (taxonomy source)
Caenorhabditis auriculariae Tsuda & Futai, 1999 (taxonomy source)
Caenorhabditis avicola Schmidt & Kuntz, 1972 (taxonomy source)
Caenorhabditis bovis (Kreis, 1964) Andrássy, 1983 (taxonomy source)
Caenorhabditis brenneri Sudhaus & Kiontke, 2007 (taxonomy source)
Caenorhabditis briggsae (Dougherty & Nigon, 1949) Dougherty, 1953 (taxonomy source)
Caenorhabditis clavopapillata (Kreis & Faust, 1933) Dougherty, 1955 (taxonomy source)
Caenorhabditis craspedocercus (Völk, 1950) (taxonomy source)
Caenorhabditis drosophilae (Kiontke, 1997) (taxonomy source)
Caenorhabditis elegans (Maupas, 1899) Dougherty, 1953 (taxonomy source)
Caenorhabditis formosana (Yokoo & Okabe, 1968) Andrássy, 1976 (taxonomy source)
Caenorhabditis fruticicolae (Shinohara, 1960) (taxonomy source)
Caenorhabditis genitalis (Scheiber, 1880) (taxonomy source)
Caenorhabditis japonica Kiontke, Hironaka & Sudhaus, 2002 (taxonomy source)
Caenorhabditis oncomelaniae (Yokoo & Okabe, 1968) Sudhaus, 1976 (taxonomy source)
Caenorhabditis perrieri (Maupas, 1900) Dougherty, 1955 (taxonomy source)
Caenorhabditis plicata (Völk, 1950) Andrássy, 1983 (taxonomy source)
Caenorhabditis remanei (Sudhaus, 1974) Andrássy, 1983 (taxonomy source)
Caenorhabditis sonorae (Kiontke, 1997) (taxonomy source)
Cephaloboides (Rahm, 1928) Massey, 1974 (taxonomy source)
Cephaloboides armatus (Fuchs, 1931) (taxonomy source)
Cephaloboides curvicaudatus (A. Schneider, 1866) Zullini, 1982 (taxonomy source)
Cephaloboides dimorphus (Sudhaus, 1976) (taxonomy source)
Cephaloboides musicola (Rahm, 1928) Massey, 1974 (taxonomy source)
Cephaloboides paraciliatus (T. Goodey, 1943) (taxonomy source)
Cephaloboides pawani (Khan, Singh & Baird, 1999) accepted as Cephaloboides curvicaudatus (A. Schneider, 1866) Zullini, 1982 (taxonomy source)
Choriorhabditis Osche, 1952 (taxonomy source)
Choriorhabditis acarta (Rühm, 1956) (taxonomy source)
Choriorhabditis anchispora (Andrássy, 1966) (taxonomy source)
Choriorhabditis berolina (Sudhaus & Kühne, 1990) (taxonomy source)
Choriorhabditis castaneana (Abolafia & Peña-Santiago, 2009) Sudhaus, 2011 (taxonomy source)
Choriorhabditis ciliata (Fuchs, 1931) (taxonomy source)
Choriorhabditis crenata (Paesler, 1946) Sudhaus, 2011 (taxonomy source)
Choriorhabditis dubia (Bovien, 1937) (taxonomy source)
Choriorhabditis dudichi (Andrássy, 1970) (taxonomy source)
Choriorhabditis gongyloides (Reiter, 1928) (taxonomy source)
Choriorhabditis gracilicauda (de Man, 1876) (taxonomy source)
Choriorhabditis heterura (Örley, 1880) (taxonomy source)
Choriorhabditis heteruroides (Altherr, 1938) (taxonomy source)
Choriorhabditis koerneri (Osche, 1952) (taxonomy source)
Choriorhabditis lacustris (Micoletzky, 1913) (taxonomy source)
Choriorhabditis longicaudata (Bastian, 1865) (taxonomy source)
Choriorhabditis longipapillata (Andrássy, 1978) (taxonomy source)
Choriorhabditis maculosa (Andrássy, 1982) Sudhaus, 2011 (taxonomy source)
Choriorhabditis maxima (Völk, 1950) (taxonomy source)
Choriorhabditis paradoxa (Khera, 1971) Sudhaus, 2011 (taxonomy source)
Choriorhabditis producta (A. Schneider, 1866) (taxonomy source)
Choriorhabditis querquetulana (Abolafia & Peña-Santiago, 2009) Sudhaus, 2011 (taxonomy source)
Choriorhabditis spelaea (Abolafia & Peña-Santiago, 2011) Sudhaus, 2011 (taxonomy source)
Choriorhabditis stercoraria (Andrássy, 1987) Sudhaus, 2011 (taxonomy source)
Choriorhabditis verminosa (Abolafia & Peña-Santiago, 2009) Sudhaus, 2011 (taxonomy source)
Crustorhabditis Sudhaus, 1974 (taxonomy source)
Crustorhabditis chitwoodi Nicholas, 2004 (taxonomy source)
Crustorhabditis ocypodis (Chitwood, 1935) Andrássy, 1983 (taxonomy source)
Crustorhabditis riemanni (Sudhaus, 1974) Andrássy, 1976 (taxonomy source)
Crustorhabditis stasileonovi (Belogurov, 1977) Sudhaus & Nimrich, 1989 (taxonomy source)
Crustorhabditis transita Sudhaus, 2011 (taxonomy source)
Crustorhabditis transita Sudhaus, 2011 (original description)
Cruznema Artigas, 1927 (taxonomy source)
Cruznema campestris Reboredo & Camino, 2000 (taxonomy source)
Cruznema cruznema Artigas, 1927 (taxonomy source)
Cruznema extricatum (Gutiérrez, 1949) (taxonomy source)
Cruznema graciliformis (Goffart, 1935) Sudhaus, 1978 (taxonomy source)
Cruznema lincolnensis Reboredo & Camino, 1998 (taxonomy source)
Cruznema platidontum (Reboredo & Camino, 2000) Sudhaus, 2011 (taxonomy source)
Cruznema tripartitum (von Linstow, 1906) Zullini, 1982 (taxonomy source)
Cruznema velatum Brzeski, 1989 (taxonomy source)
Diploscapter Cobb, 1913 (taxonomy source)
Diploscapter angolaensis Siddiqi, 1998 (taxonomy source)
Diploscapter cannae Rahm, 1928 (taxonomy source)
Diploscapter cornutus (Siddiqi, 1998) Sudhaus, 2011 (taxonomy source)
Diploscapter coronatus (Cobb, 1893) Cobb, 1913 (taxonomy source)
Diploscapter cylindricus Rahm, 1929 (taxonomy source)
Diploscapter indicus Tahseen, Siddiqi & Rowe, 2002 (taxonomy source)
Diploscapter libycus Penso, 1938 (taxonomy source)
Diploscapter lycostoma Völk, 1950 (taxonomy source)
Diploscapter nodifer Mihelcic, 1953 (taxonomy source)
Diploscapter orientalis Kannan, 1960 (taxonomy source)
Diploscapter pachys Steiner, 1942 (taxonomy source)
Diploscapter rhizophilus Rahm, 1928 (taxonomy source)
Diploscapter striatus Siddiqi, 1998 (taxonomy source)
Diploscapter tentaculatus (Carter, 1859) Sudhaus, 2011 (taxonomy source)
Diploscapter tokobaevi Lemzina & Gagarin, 1994 (taxonomy source)
Diploscapteroides Rahm, 1928 (taxonomy source)
Diploscapteroides boettgeri (Meyl, 1953) (taxonomy source)
Diploscapteroides brevicauda Rahm, 1928 (taxonomy source)
Diploscapteroides chitinolabiatus (W. Schneider, 1937) Andrássy, 1983 (taxonomy source)
Diploscapteroides coroniger (Altherr, 1938) (taxonomy source)
Diploscapteroides dacchensis (Timm, 1959) Andrássy, 1983 (taxonomy source)
Diploscapteroides flexuosus Andrássy, 2001 (taxonomy source)
Distolabrellus Anderson, 1983 (taxonomy source)
Distolabrellus magnivulvatus Abolafia & Peña-Santiago, 2011 (taxonomy source)