Allantonema mirabile Leuckart, 1887 (redescription)
Allantonema morosa (Fuchs, 1929) Filipjev, 1934 (redescription)
Aphelenchoides (Aphelenchoides) (Fischer, 1894) Rühm, 1956 (taxonomy source)
Aphelenchoides (Aphelenchoides) ipidicola Rühm, 1956 (original description)
Bursaphelenchus piniperdae Fuchs, 1937 (taxonomy source)
Contortylenchus Rühm, 1956 (original description)
Contortylenchus acuminati Rühm, 1956 (original description)
Contortylenchus amitini Rühm, 1956 (original description)
Contortylenchus cryphali Rühm, 1956 (original description)
Contortylenchus cunicularii (Fuchs, 1929) Rühm, 1956 (taxonomy source)
Contortylenchus diplogaster (von Linstow, 1890) Rühm, 1956 (taxonomy source)
Contortylenchus laricis (Fuchs, 1929) Rühm, 1956 (taxonomy source)
Cryptaphelenchus cryptus Rühm, 1956 (original description)
Cryptaphelenchus koerneri Rühm, 1956 (original description)
Cryptaphelenchus leptocaudus Rühm, 1956 (original description)
Cryptaphelenchus macrogaster acuminati Rühm, 1956 (original description)
Cryptaphelenchus macrogaster macrogaster (Fuchs, 1937) Rühm, 1956 (taxonomy source)
Cryptaphelenchus macrogasteroides Rühm, 1956 (original description)
Cryptaphelenchus macrogasteroides macrogasteroides Rühm, 1956 (original description)
Cryptaphelenchus macrogasteroides villosi Rühm, 1956 (original description)
Cryptaphelenchus malpighius Fuchs, 1937 (taxonomy source)
Cryptaphelenchus piceae Rühm, 1956 (original description)
Cryptaphelenchus piceoides Rühm, 1956 (original description)
Cryptaphelenchus poligraphi Rühm, 1956 (original description)
Deladenus norimbergensis Rühm, 1956 (original description)
Ditylenchus abieticolus Rühm, 1956 (original description)
Ditylenchus autographi Rühm, 1956 (original description)
Ditylenchus eremus Rühm, 1956 (original description)
Ditylenchus glischrus Rühm, 1956 (original description)
Ditylenchus major (Fuchs, 1915) Filipjev, 1936 (taxonomy source)
Ditylenchus ortus (Fuchs, 1938) Schuurmans-Stekhoven, 1941 (taxonomy source)
Ditylenchus panugrus Rühm, 1956 (original description)
Ditylenchus petithi (Fuchs, 1938) (taxonomy source)
Ditylenchus pityokteinophilus Rühm, 1956 (original description)
Ditylenchus striatus (Fuchs, 1938) (taxonomy source)
Neotylenchus dendrophilus Rühm, 1956 accepted as Gymnotylenchus dendrophilus (Rühm, 1956) Sumenkova, 1975 (original description)
Nothotylenchus drymocolus Rühm, 1956 (taxonomy source)
Panagrellus ludwigi (de Man, 1910) Goodey, 1945 (taxonomy source)
Panagrobelus stammeri Rühm, 1956 (original description)
Panagrolaimus chalcographi Fuchs, 1930 (taxonomy source)
Panagrolaimus cornutus Fuchs, 1930 (taxonomy source)
Panagrolaimus dendroctoni (Fuchs, 1932) Rühm, 1956 (taxonomy source)
Panagrolaimus detritophagus Fuchs, 1930 (taxonomy source)
Panagrolaimus fuchsi Rühm, 1956 (original description)
Panagrolaimus goodeyi Rühm, 1956 (original description)
Panagrolaimus moehni Rühm, 1956 (original description)
Panagrolaimus piniperdae Fuchs, 1930 (taxonomy source)
Panagrolaimus scheucherae Rühm, 1956 (original description)
Panagrolaimus subelongatus (Cobb, 1914) Thorne, 1937 (taxonomy source)
Panagrolaimus tigrodon Fuchs, 1930 (taxonomy source)
Panagrolaimus venustus Fuchs, 1930 (taxonomy source)
Panagrolaimus verrucosus Fuchs, 1930 (taxonomy source)
Panagrolaimus wichmanni Rühm, 1956 (original description)
Parasitaphelenchinae Rühm, 1956 (original description)
Parasitaphelenchus acuminati Rühm, 1956 (original description)
Parasitaphelenchus ateri (Fuchs, 1937) Rühm, 1956 (taxonomy source)
Parasitaphelenchus oldhami Rühm, 1956 (original description)
Parasitaphelenchus papillatus Fuchs, 1937 (taxonomy source)
Parasitaphelenchus poligraphi (Fuchs, 1937) Rühm, 1956 (taxonomy source)
Parasitaphelenchus sexdentati (Fuchs, 1937) Rühm, 1956 (taxonomy source)
Parasitaphelenchus strongylocephalus Rühm, 1956 (original description)
Parasitorhabditis acuminati (Fuchs, 1937) Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 (taxonomy source)
Parasitorhabditis autographi (Fuchs, 1937) Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 (taxonomy source)
Parasitorhabditis chalcographi (Fuchs, 1937) Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 (taxonomy source)
Parasitorhabditis cryphalophila Rühm, 1956 (original description)
Parasitorhabditis crypturgophila Rühm, 1956 (original description)
Parasitorhabditis curvidentis (Fuchs, 1915) Rühm, 1956 (taxonomy source)
Parasitorhabditis dendroctoni Rühm, 1956 (original description)
Parasitorhabditis ligniperdae (Fuchs, 1915) Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 (taxonomy source)
Parasitorhabditis obtusa (Fuchs, 1915) Chitwood & Chitwood, 1950 (taxonomy source)
Parasitorhabditis opaci Rühm, 1956 (original description)
Parasitorhabditis palliati (Fuchs, 1937) Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 (taxonomy source)
Parasitorhabditis piniperdae (Fuchs, 1937) Skrjabin, Shikhobalova, Sobolev, Paramonov & Sudarikov, 1954 (taxonomy source)
Parasitorhabditis villosi Rühm, 1954 (original description)
Parasitylenchus (Metaparasitylenchus) Wachek, 1955 (taxonomy source)
Parasitylenchus (Metaparasitylenchus) oschei Rühm, 1956 accepted as Metaparasitylenchus oschei (Rühm, 1956) Nickle, 1967 (original description)
Parasitylenchus (Parasitylenchus) (Micoletzky, 1922) Rühm, 1956 (original description)
Parasitylenchus (Parasitylenchus) betulae Rühm, 1956 accepted as Neoparasitylenchus betulae (Rühm, 1956) Nickle, 1967 (original description)
Parasitylenchus (Parasitylenchus) chalcographi (Fuchs, 1938) Rühm, 1956 (taxonomy source)
Parasitylenchus (Parasitylenchus) cinerei (Fuchs, 1929) Fuchs, 1938 accepted as Neoparasitylenchus cinerei (Fuchs, 1929) Nickle, 1967 (taxonomy source)
Parasitylenchus (Parasitylenchus) cryphali (Fuchs, 1914) Filipjev, 1934 accepted as Neoparasitylenchus cryphali (Fuchs, 1914) Nickle, 1967 (taxonomy source)
Parasitylenchus (Parasitylenchus) hylastis (Wuelker, 1923) Filipjev, 1934 accepted as Neoparasitylenchus hylastis (Wülker, 1923) Nickle, 1967 (taxonomy source)
Parasitylenchus (Parasitylenchus) pityophthori Rühm, 1956 accepted as Neoparasitylenchus pityophthori (Rühm, 1956) Nickle, 1967 (original description)
Parasitylenchus (Parasitylenchus) wuelkeri Rühm, 1956 accepted as Neoparasitylenchus wuelkeri (Rühm, 1956) Nickle, 1967 (original description)
Parasitylenchus (Sulphuretylenchus) Rühm, 1956 (original description)
Parasitylenchus (Sulphuretylenchus) escherichi Rühm, 1956 accepted as Sulphuretylenchus escherichi (Rühm, 1956) Nickle, 1967 (original description)
Parasitylenchus (Sulphuretylenchus) kleinei Rühm, 1956 accepted as Sulphuretylenchus kleinei (Rühm, 1956) Nickle, 1967 (original description)
Parasitylenchus dispar chalcographi Fuchs, 1938 accepted as Neoparasitylenchus chalcographi (Fuchs, 1938) Nickle, 1967 (taxonomy source)
Paurodontinae Thorne, 1941 (taxonomy source)
Polymorphotylenchus Rühm, 1956 (original description)
Polymorphotylenchus (Polymorphotylenchus) Rühm, 1956 (original description)
Polymorphotylenchus (Polymorphotylenchus) typographi (Fuchs, 1915) Rühm, 1956 (taxonomy source)
Polymorphotylenchus (Thylakolenchus) Rühm, 1956 (original description)
Polymorphotylenchus (Thylakolenchus) curvidentis (Fuchs, 1914) Rühm, 1956 accepted as Parasitylenchus curvidentis (Fuchs, 1914) Micoletzky, 1922 (taxonomy source)
Stictylus Thorne, 1941 (taxonomy source)
Stictylus mycophilus Rühm, 1956 (original description)
Stictylus pini (Fuchs, 1929) (taxonomy source)
Stictylus pseudobtusus Rühm, 1956 (original description)
Sychnotylenchus Rühm, 1956 (original description)
Sychnotylenchus intricati Rühm, 1956 (original description)