Phylum Nematoda Gegenbaur, 1859 - round worms
Class Secernentea Von Linstow, 1905
Subclass Tylenchia (Thorne, 1949) Inglis, 1983
Order Tylenchida G. Thorne, 1949
Suborder Hoplolaimina Chizhov & Berezina, 1988
Superfamily Dolichodoroidea (Chitwood, in Chitwood & Chitwood, 1950) Siddiqi, 1986
see Superfamily Tylenchoidea Örley, 1880
Family Telotylenchidae Siddiqi, 1960
Subfamily Telotylenchinae Siddiqi, 1960
Genus Bitylenchus (Filipjev, 1934) Jairajpuri, 1982