(syn. Cygnonematinae Allen & Noffsinger, 1978; Dracognominae Allen & Noffsinger, 1978; Notochaetosomatinae Allen & Noffsinger, 1978)
Diagnosis (emend. after Lorenzen 1994; Allen & Noffsinger 1978; Decraemer et al. 1997): Draconematidae. Pharyngeal body region swelling slight or not present. Pharynx without median narrowing (except for Dracognomus). Buccal cavity small to moderately developed, with unclear to conspicuous dorsal tooth.
Type genus: Prochaetosoma Micoletzky, 1922.