Often you can tell what family of fish it is in.
The scales on the trunk and tail of a perch are arranged in overlapping rows that run diagonally along the body. These scales are known as cycloid scales, which are round or oval-shaped with smooth edges. The scales on the trunk are larger and more prominent compared to those on the tail, providing protection and flexibility for the fish as it moves through the water.
The body covering for a fish is called its scales. Scales on fish vary by size, color, number, and shape by species.
The body covery of the fish is there skins.
All fish have a body covering of scales.
Skin and perhaps in some fish scales.
Scales
If the fish is a baby and it grows then the scales expand and grow to match the fish's body.
The outermost layer of most fish is scales.
Scales
Scales
There is no real type of skin for cartilage fish. It varies..
Yes. Seahorses are bony fish, they do not have scales, rather a thin skin stretched over a series of bony plates arranged in rings throughout their body.