Image: Dissection of a Bluespotted Flathead - Gills
The gills of a fish are usually made up of filaments, arches and rakers. The filaments are the obvious red structures in the image. The arch is the boomerang-shaped structure that supports the filaments. The rakers project from the opposite side of the arch from the filaments. Learn more about these structures.
- Mark McGrouther
- © Australian Museum
Draw a diagram of your fish's gills.
Why are the gills red in colour?
Why do the gills have a feather-like appearance?