Bass are classified in the sunfish family.

The largemouth bass (Micropterus salmoides) is the largest species of black bass with a maximum length of just under 30 inches and a weight of just over 22 pounds. Fish can live an average of 16 years. They have an olive back and a lateral stripe of dark green splotches.
Young bass feed on small fish and insects and while adults feed primarily on fish, they can include crayfish, frogs, frogs, salamanders, snakes, and even bats, small aquatic birds, and infant alligators in their diets. It is recognized as the state fish in 4 southern states.
Males build nests in water which is at least 2 feet deep, preferably in quieter water. The females lay eggs which can vary from 2,000 to 43,000 in number. Males guard the nests where the young hatch in 5 to 10 days.
Largemouth bass were originally found throughout North America east of the Rockies from southeastern Canada to Northeastern Mexico and have since been introduced into additional areas in Latin America.


Smallmouth bass (Micropterus dolomieui)
The brownish bodies of smallmouth bass possess dark veritcal stripes rather than the horizontal stripes in largmouths.
Smallmouth bass feed on crustaceans, insects, and small fish when young and older fish feed primarily on fish and crayfish. They tend not to feed in winter. They live up to 15 years and mature at 3-4 years. Males make nests in 1-2 feet of water and females can lay up to 21,000 eggs. Males guard and defend the nest and hatchlings.
They were originally limited to the Mississippi, St. Lawrence, Great Lakes, and Hudson Bay. From this region they were introduced into east of the Appalachians and into other regions. They were introduced into Pennsylvania in the 1800s. Females are larger than males and can weigh up to 6 pounds. Although they can occur with largemouth bass, they prefer water which is clearer and cooler. They can be used as an indicator of water quality since they cannot coexist with pollution.
bass bass

Rock bass can be found in the rocky regions of lakes and streams. They typically measure 9 inches as adults although they can reach 13.