77 



Family Clupeid/e. (Shad.) 



Hickory Shad, Gizzard Shad {Dorosoma cejyediamim, Les. ). 



The bottom-land sloughs and lakes are pre-eminently the spawn- 

 ing ground of this fish. Young of the year, 1.50 to 2 inches long 

 and still wearing the black shoulder mark, occur in countless 

 numbers. Probably more than half of the individuals taken in 

 the Fish Commission seines during the season are these young 

 shad. The temporary pools on the lower part of the bottom-land 

 were crowded with them. They were less abundant far- 

 ther back, but were still very common in Libby Lake, inside 

 the levee. The adults, on the other hand, were usually scarce; but 

 in the pool south of Quincy both young and adults were common, — 

 a fact exi)lained by the situation of the pool east of a railroad 

 embankment and at a considerable distance from the river. The 

 pool is consequently very early isolated, and the adults which 

 make their way in to spawn are prevented from escaping. Pre- 

 daceous fishes confined in the sloughs depend very largely on this 

 shad for sustenance. 



Localities: Harkness Slough, Libby Lake, Moss Lake, Dead 

 Man's Slough, Claus Lake, Quincy Bay, Long Lake, Broad Lake, 

 Wood Slough, pool south of Quincy. , 



Ohio Shad {Clupea chrysodiloris, Raf. ). 



Probably not common. The only specimens seen were a half 

 dozen young, 2.62 inches long, from Moss Lake, Long Island, 

 Aug. 14. 



Family Cypeinid.e. (Minnows.) 



Golden Shiner, Bream {Noiemigonus chrysoleucus, Mitch.). 



Frequent. Abundant in Libby Lake, where examples 5 inches 

 long were seen. 



Localities: Harkness Slough, Libby Lake, Dead Man's Slough, 

 Claus Lake, Long Lake, Wood Slough, pool south of Quincy. 



Htjhopsis amhlops, Raf. 



Common in Willow Slough and of large size, some examples 

 measuring 4.5 inches in extreme length. Elsewhere taken only 

 in Broad Lake and Wood Slough, from each of which one or two 

 examples were obtained. 



Phenacohius iereiulus, Cope. 



A single example of this variable minnow was taken from Broad 

 Lake, August 9. 



Noiropis aihei'inoides, Raf. 



Not found common except in Moss Lake and in the river. On 

 the sand bars of the latter it is caught in numbers for bait. It 

 was sometimes seen hurrying up stream near the shore against 

 .the force of the current. 



