516 Percoidea, or Perch-like Fishes 
aquarium fish is the black-banded sunfish, Mesogonistius cheto- 
don, of the Delaware, as also the nine-spined sunfish, Enneacan- 
thus gloriosus, of the coast streams southward. Apomotis cyanel- 
lus, the blue-green sunfish or little redeye, is very widely dis- 
tributed from Ohio westward, living in every brook. The dis- 
section of this species is given on page 26. To Lepomis belong 
numerous species having the opercle prolonged in a long flap 
which is always black in color, often with a border of scarlet or 
blue. The yellowbelly of the South (Lepomis auritus), ear-like 
the showily colored long-eared sunfish (Lepomis megalotis) of the 
Fic. 406.—Common Sunfish, Eupomotis gibbosus (Linnzus). Root River, Wis. 
southwest, figured on page 2, the bluegill (Lepomis pallidus), 
abundant everywhere south and west of New York, are mem- 
bers of this genus. The genus Hupomotis differs in its larger 
pharyngeals, which are armed with blunt teeth. The common 
sunfish, or pumpkinseed, Ewpomotis gibbosus, is the most familiar 
representative of the family, abounding everywhere from Min- 
nesota to New England, then south to Carolina on the east slope 
of the Alleghanies, breeding everywhere in ponds and in the 
eddies of the clear brooks. 
The Black Bass.—The black bass (Micropterus) belong to the 
same family as the sunfish, differing in the larger size, more 
elongate form, and more voracious habit. The two species are 
