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A typical example of a spiny-rayed fish is the codfish.

Codfish

A typical example of a spiny-rayed fish is the codfish.

Flounder keep near the bottom, swimming on one side, and the two eyes are both on the side that is uppermost.

Flounder

Flounder keep near the bottom, swimming on one side, and the two eyes are both on the side that is uppermost.

The gar fish has a cylindrical body covered by rhomboidal bony scales that are coated with enamel, making a strong and complete armor.

Gar

The gar fish has a cylindrical body covered by rhomboidal bony scales that are coated with enamel, making…

The perch is typical of a large group of fishes, all of which have spiny rays. The perch is widely distributed in fresh-water lakes and streams.

Mackerel

The perch is typical of a large group of fishes, all of which have spiny rays. The perch is widely distributed…

The salmon is well known both from its commercial importance and from its remarkable migrations up rivers to spawn.

Salmon

The salmon is well known both from its commercial importance and from its remarkable migrations up rivers…

the sturgeon has a cylindrical body covered by rhomboidal bony scales that are coated with enamel, making a strong and complete armor.

Sturgeon

the sturgeon has a cylindrical body covered by rhomboidal bony scales that are coated with enamel, making…