NematodaAcuariidaeAllantonematidaeAmidostomatidaeAncylostomatidaeAngiostrongylidaeAnguillicolidaeAnguinidaeAnisakidaeAphelenchidaeAphelenchoididaeAscarididaeAscaridiidaeBelonolaimidaeChabertiidaeCriconematidaeDesmoscolecidaeDictyocaulidaeDioctophymatidaeDolichodoridaeDorylaimidaeDracunculidaeFilariidaeFilaroididaeGnathostomatidaeHabronematidaeHeligmonellidaeHeligmosomidaeHeterakidaeHeteroderidaeHeterorhabditidaeHoplolaimidaeLongidoridaeMeloidogynidaeMermithidaeMetastrongylidaeMolineidaeOnchocercidaeOxyuridaePanagrolaimidaeParatylenchidaePratylenchidaeProtostrongylidaeRhabditidaeSpirocercidaeSteinernematidaeStrongylidaeStrongyloididaeSyngamidaeTetrameridaeThelaziidaeTrichinellidaeTrichodoridaeTrichostrongylidaeTrichuridaeTylenchidaTylenchidaeTylenchulidaeAschelminthes