Do bettas have gills

Bettas and other members of the anabantoid family of fish, which includes the gouramis, paradise fish, snakeheads and combtails, all have adapted to life in stagnant, oxygen depleted ponds and pools. In many instances, they cannot get enough oxygen using their gills alone. They have therefore developed an organ called the labyrinth organ, a long, coiling airway that enables fish from this family to breate atmospheric oxygen, thus reducing their dependance on the oxygen held in the water.

In many fish of this family, their dependance upon atmoshpheric air is so great that one can if it is prevented from reaching the surface.