Parataenia Linton cannot exist as a cestode genus as it is preoccupied. remain in the Onchobothriidae Braun. The order Lecanicephalidea was not established by Baylis. There are no grounds for recognising the superfamily Lecanicephaloidea Southwell which contains only the Lecanicephalidae Braun. The elevation of the lecanicephalids to an order, the Lecanicephala, does not appear to be valid. To avoid further confusion the scheme set out by Braun (1900) should be used as a basis for classification of the lecanicephalids.