Two species of chondracanthid copepods Acanthochondria platycephali Heegaard, 1940 and Pterochondria alatalongicollis Heegaard, 1940 are described. The latter was described by Heegaard as Acanthochondria platycephali f. alata-longicollis. However, it is placed in a new genus, based on the studies of type specimen and new material. A discussion on the other species of Acanthocondria parasitic on the flathead is given. It is suggested that A. bulbosus Heegaard, 1943, is synonymous with A. tchangi Y¨, 1935, and A. diastema Kabata, 1965, with Pterochondria alatalongicollis.