Containing around 17,000 different species, jawed fish are the largest group of vertebrates in the animal kingdom. But even that huge number doesn't account for all fish species in fresh water and saltwater. Because there are so many types of fish, m See more »

Alewife, a silvery fish of the herring family, found primarily in the Atlantic Ocean. See more »

Bass, the name given to several members of the sunfish family and to several members of the sea bass family. See more »

Catfish, one of a large group of scaleless fish. It is a bottom-feeder and uses its sensitive feelers, or barbels, to locate food such as crayfish. See more »

Drum, a game fish named for the drumming sound it produces. This sound is made when the fish expels gases from its air bladder. See more »

Eel, a snakelike fish. The eel has a long tapered body covered by slimy skin. Some species have scales. See more »

Electric Fish, any of several unrelated types of fish with special organs that can give electric shocks. See more »

Fish, a water-dwelling animal that breathes through gills and has a backbone, fins, and a two-chambered heart. See more »

Lamprey, any of about 40 species of jawless, eellike fish. The skeleton of a lamprey is made of cartilage. See more »

Trout, a popular game fish valued for its flavor and fighting spirit. It is native to the temperate parts of the Northern Hemisphere, but has been introduced in many other parts of the world. See more »