A new record genus and two new record species ofAncyrocephalidae（Monogenea）

A new record genus and two new record species of Ancyrocephalidae（Monogenea）from China arerecorded for the first time. They are Thylacicleidus Wheeler & Klassen，1988，Thylacicleidus serendipitus Wheeler& Klassen，1988 and Thylacicleidus latus Řehulková & Gelnar，2005 parasitized on gills of Tetraodon nigroviridis.Morphlolgy and size of our specimens basically agree with the description of Wheeler & Klassen（1988）and Řehulková& Gelnar（2005）.