Which fish have a serpentine body?

A similar body shape has, for example, the Kalabar kalamoicht fish (the multi-feather family, the Kalamoichta genus), which in appearance is very similar to a snake with fins.
Another species is the common loach (c. Loach, genus loach), also with an elongated body and antennae around the mouth. In some species, the scales are very similar to snake skin.
They have a serpentine form of moray eels (moray eels, moray genus) and eels (eels, eels genus).
The combination of an elongated body and sharp dorsal fins resembling a dragon has a mnogoper (c. Mnogoperovye, a genus of mnogoper).
The snakehead even has a color similar to that of a snake, in the form of brown spots (v. Snakeheads, a genus of snakeheads).