Diphtherophorina

Diphtherophorina is a suborder of terrestrial nematodes, being one of three that constitute suborder Triplonchida.

Taxonomy
There is a single superfamily, the Diphtherophoroidea (formerly Trichodoiroidea (Thorne, 1935) Siddiqi, 1961), consisting of two families;
 * Diphtherophoridae
 * Trichodoridae