Azygiida
Accacladium Ohhner, 1928
Accacladocoelium Ohhner, 1928
Accacoelium Monticelli, 1893
Mneiodhneria Dollfus, 1935
Odhnerium Yamaguti, 1934
Orophocotyle Looss, 1901
Paraccacladium Bray & Gibson, 1977
Rhynchopharynx Odhner, 1928
Rhyncopharynx
Tetrochetus Looss, 1912