Percoidea, or Perch-like Fishes gis 
into the Sacramento. The perch eats the young catfish, and 
its stomach is torn by their sharp pectoral spines. Another 
Fic. 404.—Blue-Gill, Lepomis pallidus (Mitchill). Potomac River. 
species of this type is the warmouth (Chenobryttus gulosus) 
of the ponds of the South, and still more familiar rock-bass 
Fic. 405,—Long-eared Sunfish, Lepomis megalotis (Rafinesque). From Clear 
Creek, Bloomington, Indiana. Family Centrarchide. 
or redeye (Ambloplites rupestris) of the more northern lakes 
and rivers valued as a game- and food-fish. A very pretty 
