Centrarchidae
The family's 37 species include many fish familiar to North Americans, including the rock bass, largemouth bass, bluegill, pumpkinseed, and crappies. All are native only to North America. Family members are distinguished by having from five to 13 dorsal spines, which are sharp bones in the dorsal fin. Sizes of most are in the  range. However, some are much smaller, with the black-banded sunfish at just  in length, while the largemouth bass is reported to reach almost  in extreme cases.