Question

What class of fish have ctenoid scales?

Answer 1

Ctenoid scales:

1. Fish scales are small, hard plates that grow from fish skins.
2. The ctenoid scale is a type of scale that is tiny with many small tooth-like protrusions (ctenii) on the back or side parts.
3. Sea bass (perch) have ctenoid scales, whereas herring, minnow, and trout all have cycloid scales, or you can find both types of scales in the same fish.
4. Perch fishes belong to Class Actinopterygii.