Does Trygon Have Air Bladder?

Answer is trygon because it come under class chondrichytes and this class does not possess air bladder except clarias.

Which fish do not have an air bladder?

The swim bladder is missing in some bottom-dwelling and deep-sea bony fish (teleosts) and in all cartilaginous fish (sharks, skates, and rays).

Which fish Group has air bladders?

It is a characteristic organ of Osteichthyes (bony fishes). It is a gas-filled pneumatic sac, called air-bladder or swim-bladder. Air-bladder does not occur in elasmobranchs. However, it is found in all Osteichthyes (bony fishes) except a few bottom dwellers (Lophius, Pleuronectes, etc.).