Most of them come under the subclass "Actinopterygii"
Actinopterygii
An angelfish is a spiny-rayed fish in the superorder Acanthopterygii. They are under the subclass Actinopterygii with other bony fishes. There are 15 orders in the superorder Acanthopterygii.
it helps the fish to move and breathe
The three classes of bony fish are Actinopterygii (ray-finned fish), Sarcopterygii (lobe-finned fish), and Dipnoi (lungfish). Ray-finned fish have fins supported by bony rays, lobe-finned fish have fleshy lobed fins, and lungfish are known for their ability to breathe air.
When you said bony fish I'm thinking of a coelacanth ~ see related link below to see if this fish fits your question .
Bony fish typically have a greater number of fins than sharks, including paired pectoral and pelvic fins, a dorsal fin, and an anal fin, which are often more flexible and can be variously shaped. In contrast, sharks possess fewer fins, primarily including a larger dorsal fin, paired pectoral fins, and a caudal fin, which are more rigid and often triangular or crescent-shaped. The fins of bony fish are generally supported by bony rays, while shark fins are made of cartilage. This structural difference contributes to the varying swimming techniques and adaptations of each group.
hi
A goldfish is a ray-finned fish because its fins are supported by bony rays. Ray-finned fishes belong to the class Actinopterygii, characterized by fins made of webs of skin supported by bony spines or rays. This differs from lobe-finned fishes like lungfish or coelacanths, which have fins with a fleshy, lobed appearance.
The main difference between lobe-finned fish and ray-finned fish lies in their fin structure. Lobe-finned fish have fleshy, lobed fins supported by a bony structure, while ray-finned fish have fins supported by bony rays. Additionally, lobe-finned fish are believed to have given rise to tetrapods, including amphibians, reptiles, birds, and mammals.
Bony fish have scales, fins, and gills for respiration, while frogs have smooth skin, limbs for locomotion, and lungs for breathing. Bony fish also have a swim bladder to control buoyancy, whereas frogs do not have this adaptation.
The ones in pairs are: pelvic fins and pectoral fins.
Basically, any fish with a swim bladder and movable pectoral fins can swim backward (bony, ray-finned fish).