GephyroberyxGephyroberyx is a genus of fishes in the slimehead family.SpeciesOnce, three species were placed in this genus, but Gephyroberyx philippinus is now considered to be a synonym of G. darwinii. Based on broadly overlapping morphological features, G. japonicus should also be regarded a synonym of G. darwinii, but both are recognized as valid species by FishBase:Gephyroberyx darwinii ''Gephyroberyx japonicus''