Tonguefish

Members of the family Cynoglossidae, the tonguefishes are for the most part too small to be of much interest as food fishes.

The tonguefishes are flatfishes found in the tropical and subtropical seas of the world, hut some species are found in freshwater hahitats (see Achiridae for a discussion of flatfishes).

But the tonguefish are unaffected by the noxious gases. The ”narked" fish end up as chow for the tonguefish.