Key to Orders of the Class ENOPLEA and Subclass DORYLAIMIA

1 Oesophagus cylindrical and well developed; stichosome or trophosome absent; monodelphic.............................................................................................. Dioctophymatida Baylis & Daubney, 1926

- Stichosome or trophosome present; intestine and rectum well developed; sexes separate; monodelphic..................................................................................................... Trichinellida Hall, 1916