Order Pleuronematida Fauré-Fremiet in Corliss, 1956

Fam. Calyptotrichidae Small & Lynn, 1985
Fam. Conchophthiridae Kahl in Doflein & Reichenow, 1929
Fam. Ctedoctematidae Small & Lynn, 1985
Fam. Cyclidiidae Ehrenberg, 1838
Fam. Dragescoidae Jankowski in Small & Lynn, 1985
Fam. Histiobalantiidae de Pytorac & Corliss in Corliss, 1979
Fam. Peniculistomatidae Fenchel, 1965
Fam. Pleuronematidae Kent, 1881
Fam. Thigmocomidae Kazubski, 1958

Incertae sedis in Suborder Pleuronematina

- Larvulina Penard, 1922