Taxonomy of Finfish (1+2)

KEY CHARACTER USED TO IDENTIFY BONY FISHES

Skeleton composed of true bones

Skin normally covered with overlapping

Scales either cycloid or ctenoid.

Caudal fin nearly symmetrical.

Gills covered by a bony operculum.

And have only one external opening on each side.

Spiracle absent.

Two pair of nostrils present.

Nictitating membrane absent.