Type genus: Dorylaimopsis Ditlevsen, 1918
Diagnosis (from Fonseca & Bezerra 2014). Cuticle usually differentiated laterally. Cephalic sense organs in three distinctly separated crowns. Buccal cavity usually strongly cuticularized; anterior portion shallow, sometimes with small pointed projections at border to the vestibulum; posterior portion dilated, cylindrical or conical, usually with strongly cuticularized walls and three thorn-like projections at the border between the two portions. Spicules sometimes differentiated proximally, medially or distally. Gubernacular apophyses usually directed caudally, occasionally dorsocaudally.