Bluegill. Scientific Name : Lepomis macrochirusFood : Water and land insecetsHabitat : Freshwater. Bluegill. Grows to a maximum of 16 inchesSchooling fish of 20 - 30Spawn in June. Redear. Scientific Name : Lepomis microlophusFood : SnailsHabitat : Freshwater. . Redear. Maximum length is 43.2 cmDark colored dorsally and yellow-green ventrallyMales have cherry red edge on its operculum (flap that protects the gills).