468 FISHERIES OF THE UNITED STATES. [82] 



51. Rocctis chrysops (Baf.) Gill. White Bass; Cisco Bass. 



Mississippi Valley ; Great Lakes, and northward. 

 This is a game fish, important as food, reaching a 



length of 15 inches and weighing as much as 10 



pounds. 



10326. Sandusky, Ohio. J. W. Milner. 



Subgenus Morone Gill. 



52. Rocc«i§ amerieaiaus (Gmelin) Jor. & Gilb. White Perch. 



Atlantic coast of the United States from Cape Cod to 

 Florida ; occasional in Massachusetts Bay. 



The White Perch is abundant, ascending streams, and 

 is everywhere esteemed; it seldom exceeds a foot in 

 length, but has considerable commercial value. 



1750. Sing Sing, New York. Prof. S. F. Baird. 



APHREDODERLim 



Genus APHBEDODERUS Le Sueur. 



58. Aphredoderiis sayaians (Gilliams) De Kay. Pirate Perch 



The United States from New York southward ; west to 

 and throughout the Mississippi Valley. 



This species is remarkable for the variations in the po- 

 sition of its vent (see Jordan, Bull. 111. Lab. Nat. 

 Hist., II, 1878, p. 48), the young having it behind the 

 ventrals, while in the adult it is at the throat. 



32197. Vaughan's, Mississippi. O. P. Hay. 



ATHERINID^. 



Genus MEN1DIA Bonaparte. 



54. Menidia denies Goode & Bean. 

 East Florida. 



18051. Saint John's Rivor, Florida. Prof. S. F. Baird. 



Genus LABIBESTHES Cope. 



5«5. IrfaMdestfoes sicculus Cope. Brook Silverside; Skip- 

 jack; Silver Skipjack. 

 Upper Mississippi Valley southward to Tennessee, in 

 ponds and sluggish streams. 



17871, White River, Indiana. Prof. P. S. Jordan. 



