Species (539)
- Cyrnea spinosa Gendre 1923
- Microtetrameres cloacitectus Osmarin 1956
- Tylenchus bulbosus Micoletzky
- Monohystera stagnalis Bastian
- Monohystera similis Bütschli
- Rhabdolaimus terrestris De Man
- Rhabdolaimus aquaticus De Man
- Anguina tritici
- Wuchereria bancrofti Cobbold 1877
- Globodera rostochiensis
- Onchocerca volvulus Leuckart 1893
- Dorylaimus stagnalis Dujardin
- Monohystera filiformis Bastian
- Monohystera paludicola De Man
- Prismatolaimus dolichurus De Man
- Teratocephalus spiralis Micoletzky 1913
- Teratocephalus spiraloides Micoletzky 1913
- Teratocephalus terrestris De Man
- Trilobus pellucidus Bastian
- Triodontolaimus lacustris Micoletzky 1913
- Triodontolaimus alpinus Micoletzky 1913
- Tylencholaimus aquaticus Micoletzky 1913
- Tripyla circulata Micoletzky 1913
- Trilobus gracilis Steiner ssp. homophysalides
- Ironus ignavus Brakenhoff ssp. brevicaudatus
- Paramermis austriaca Micoletzky ()
- Bathymermis fuhrmanni Daday
- Hexamermis brevis Hagmeier 1912
- Diplogaster rivalis Leydig 1854
- Amphimermis elegans Hagmeier 1912
- Hirschmannia gracilis De Man 1880
- Paraplectonema pedunculatum Hofmänner 1913
- Paraphanolaimus microstomus Daday 1905
- Monhystera paludicola De Man 1881
- Chromadorina bioculata Schultze in Carus 1857
- Theristus flevensis Schuurmans-Stekhofen 1935
- Prodesmodora circulata Micoletzky 1913
- Chromadorita leuckarti De Man 1876
- Tripyla glomerans Bastian 1865
- Tobrilus gracilis Bastian 1865
- Udonchus tenuicaudatus Cobb 1913
- Prismatolaimus intermedius Bütschli 1873
- Amphidelus lemani Schiemer 1978 ssp. longicaud.
- Plectus thornei Rühm 1956
- Plectus assimilis Bütschli 1873
- Chiloplectus andrassyi Timm 1971
- Plectus armatus Bütschli 1873
- Plectus turricaudatus Truskova 1976
- Plectus longicaudatus Bütschli 1873
- Plectus velox Bastian 1865
- Plectus australis Cobb 1893
- Plectus parietinus Bastian 1865
- Plectus pusteri Fuchs 1930
- Plectus intermedius Cobb 1893
- Plectus acuminatus Bastian 1865
- Plectus exinocaudatus Truskova 1976
- Plectus murrayi Yeates 1970
- Plectus communis Bütschli 1873
- Plectus parvus Bastian 1865
- Plectus palustris De Man 1880
- Plectus aquatilis Andrassy 1985
- Plectus rhizophilus De Man 1880
- Plectus tenuis Bastian 1865
- Plectus paratenuis Zell 1993
- Aphanolaimus aquaticus Daday
- Aphelenchus elegans Micoletzky 1913
- Cephalobus alpinus Micoletzky 1913
- Cephalobus filiformis De Man
- Cephalobus striatus Bastian
- Cyatholaimus ruricola De Man
- Dorylaimus flavomaculatus Linstow
- Dorylaimus intermedius De Man
- Dorylaimus macrolaimus De Man
- Monohystera dispar Bastian
- Monohystera agilis De Man
- Monohystera vulgaris De Man
- Rhabditis lacustris Micoletzky 1913
- Monochus macrostoma Bastian
- Monhysterella marina
- Theristus setosus Bütschli 1874
- Monhystera hallensis Paetzold 1958
- Monhystera macramphis Filipjev 1930
- Strongylus vulgaris
- Enterobius vermicularis Linnaeus 1758
- Rhabdochona filamentosa
- Cystidicola farionis
- Anguillicola crassus
- Trichuris ovis
- Turbatrix aceti
- Necator americanus Stiles 1902
- Haemonchus contortus
- Dictyocaulus filaria
- Ascaris lumbricoides Linnaeus 1758
- Anguillula fluviatilis Ehrenberg
- Trichocephalus dispar Götze
- Oxyuris vermicularis Linnaeus 1758
- Raphidascaris acus Bloch 1779
- Dirofilaria repens
- Toxocara vulpis Fröhlich ()
- Ascaridia columbae Gmelin 1790