External features

Fish have several different types of fins. they have the caudal fin which helps the fish swim forward movement of a fish. The caudal fin is located on the posterior view.

The dorsal fin keeps the fish upright and stable. The dorsal fin is located on dorsal view near the posterior end.

The anal fin helps keep the fish in a straight line. The anal fin is located ventral view near the posterior end.

The pelvic fin comes in pairs. This helps the fish to stop and move up and down. The pelvic fins are located on the ventral view near the Anterior end.

The pectoral fin comes in pairs just like the pelvic fin. they are used to stop and moving up or down.

Fish have scales that helps prevent water loss as well as protection. Fish scales are also can tell you the age of a fish like a tree.

Not only do they have fins but they also have a operculum. The operculum is a hard covering that protects the gills. it closes when water goes in the mouth and opens when water comes out of the gills.

This is a picture of a sunny's eyes, mouth and nares.

This is a picture of one of a sunny's pectoral fin and operculum.

(Above) is a picture of a scale. (Left) is a zoomed in picture of the same scale to show you the rings on the scale. (Below) is a view of a fish swimming in water.