Tylenchidae Örley, 1880
Ottolenchus acris (Brzeski, 1985)
Ottolenchus discrepans (Andrassy, 1954)
Ottolenchus equisetus (Husain & Khan, 1967)
Ottolenchus facultativus (Szczygiel, 1970)
Ottolenchus hamuliger (Brzeski, 1998)
Ottolenchus helenae (Szczygiel, 1969)
Ottolenchus pratensis Sumenkova, 1987
Ottolenchus ranunculaceus Sumenkova, 1987
