Acoela
Alluna Faubel & Regier, 1983
Ancylocirrus Kozloff, 2000
Aphanostoma Ørsted, 1845
Archaphanostoma Dörjes, 1968
Avagina Leiper, 1902
Baltalimania Ax, 1959
Bursosaphia Dörjes, 1968
Diatomovora Kozloff, 1965
Faerlea Westblad, 1945
Haplocelis Dörjes, 1968
Isodiametra Hooge & Tyler, 2005
Otocelis Diesing, 1862
Postaphanostoma Dörjes, 1968
Praeaphanostoma Rathbun, 1911
Praeconvoluta Dörjes, 1968
Proaphanostoma Dörjes, 1972
Proconvoluta Dörjes, 1968
Pseudaphanostoma Westblad, 1946
Pseudoposthia Westblad, 1946
Raphidophallus Kozloff, 1965
Rimicola Böhmig, 1908