FISHES OF THE MISSOURI RIVER BASIN. 



375 



The Missouri Basin localities mentioned in this paper are as follows : 



(a) Missouri River at Sioux City, Woodbury County, Iowa. 



(ft) Big Sioux River at Sioux City and at Sioux Falls, Minnehaha County, S. Dak. 



(c) Silver Lake, Dickinson County, Iowa, at the head of the north fork of Little 



Sionx River. 



(d) East Fork of Soldier River at Charter Oak, Crawford County, Iowa. 



(e) Boyer River at Arion, Crawford County, Iowa. 



All of these localities (except Sioux Falls) are in the northwestern 

 part of Iowa, in which region all the streams flow southwestward, in 

 courses nearly parallel to the Missouri. In this report upon the fishes 

 of Iowa, Prof. Meek records the following species from that portion of 

 the State lying in the Missouri Eiver basin: 



