The name is derived from the fact that Longear sunfish have an elongated opercle flap. Longear sunfish are quite colorful.
Males are often bright orange or scarlet, and the head and fins usually have turquoise markings.
Dorsal and anal fins, and their associated spines, are similar to those of redear sunfish Biology Longear sunfish are primarily found in small streams and creeks. Like other sunfish they are often associated with vegetation, and avoid strong currents by inhabiting pools, inlets, and waters off the main stream channel. Spawning occurs throughout late Spring and early Summer. Males scoop nests out of gravel bars. Females are enticed to lay their eggs on a particular nest by a male who swims out to meets her, swimming around her rapidly, and displaying his brilliant spawning colors.