The Collaborative International Dictionary of English v.0.48:
Pondfish \Pond"fish`\, n. (Zool.)
Any one of numerous species of American fresh-water fishes
belonging to the family Centrarchid[ae]; -- called also
pond perch, and sunfish.
Note: The common pondfish of New England (Lepomis gibbosus)
is called also bream, pumpkin seed, and sunny.
See Sunfish. The long-eared pondfish (Lepomis
auritus) of the Eastern United States is distinguished
by its very long opercular flap.