Antigonia is a genus of marine ray-finned fish belonging to the family Caproidae, the boarfishes.

[2] The 5th edition of Fishes of the World classifies this genus in the Antigoniinae, a subfamily of the Caproidae, within the order Caproiformes,[3] as do other authorities.

This may be reference to how A. capros is so distinctive yet seems to elucidate the ancestry of relayed forms which Lowe felt were randomly classified before he described A.

The small head bears bony ridges that radiate, has a concave dorsal profile and a clear crest along the nape.

The eyes are large and the mouth is small, upward pointing, opens at the front and has protrusible jaws.