PERCH FAMILY (Percidae) 



Key to the two* members of the perch family found in Maine 



I. Preopercle strongly toothed or saw-like; mouth large; fishes of 

 medium to larize size 



Yellow Perch 

 Percci fiavescens 

 (Mitchill) 

 p. 76 



Preopercle with smooth edge; mouth small; small fishes not exceed- 

 ing 3 inches 



Mud darter 

 Etheostoma jiisijorme 

 (Girard) 



p. 77 



Yellow walleye pike were introduced unsuccessfully into the Belgrade 

 Lakes about 40 or 50 years ago. Great Pond, the site of the original 

 introduction, has produced some spear fishing by night on the spawn- 

 ing grounds. No walleyes were checked in the catches during a recent 

 census of the angling on Great Pond. Although the walleyes were re- 

 ported to have migrated into Long and Snow Ponds they do not enter 

 the sport fishery. 



The yellow walleye is the largest member of the perch family 

 and can be recognized by the large canine-type teeth. 



75 



