138 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
48. Micropterus .salmoides (Lac^pede). Larfie-mouthed Black Bass. Comuiou iu the Platte and 
Elkhorn rivers at Fremont, les.s so in Floyd River at Leraars and Sioux City. It is also found 
iu Spirit Lake, where it is probably common. 
49. Micropterus dolomieu Lacepede. SmaU-moiilhed Black Bass. Among the waters covered by 
this report, the small-mouthed hlack bass was found only in Spirit Lake. 
50. Btheostoma nigrum Raiinesque. Elkhorn River at Fremont, scarce; Floyd River at Lemars 
and Sioux City, common; College Creek at Ames, and Storm, East Okoboji, and Spirit lakes. 
It seemed most abundant in Storm Lake. A specimen was found in a minnow bucket at 
Spirit Lake, where it seems to be used as live bait to some extent. 
51. Etheo.stoma caprodes (Rafinesque). Log Perch. Several specimens seen in a ‘‘live bait” box 
at Waterloo, Iowa, where it was called “stickleback.” (E.) 
52. Btheostoma aspro (Cope A:. Jordan). Black-sided Darler. A few specimens found in Floyd River 
at Sioux City. 
53. Btheostoma evide.s (Jordan & Copeland). A very brilliantlj^ colored male of this beautiful 
darter was noticed among the minnows in the live hox of a fisherman at Waterloo, Iowa, July 
18, 1893. The nose, lower jaw, opercles, and cheeks, wore of a rich orange in color; rest of 
head orange hut not so rich ; eight broad, vertical, greenish bars on side ; spinous dorsal jilaiu. 
Several local fishermen to whom this fish was shown called it a “ stickleback,” and I learned 
that this is the name which they apply to all the darters found there. (Evermann.) 
54. Btheostoma cceruleum Storer. Baiiihow darler. Found only iu Storm Lake, where it is not 
common. 
55. Btheostoma iowee Jordan & Meek. This interesting little darter, originally described from 
Iowa, was found in limited numbers in the Platte and Elkhorn, near Fremont. In the State 
fish commission jiouds at South Bend, Nebr., it was found to be very abundant, tlie collection 
containing 42 small specimens from that place. It rvas found in Floyd River, both at Lemars 
and Sioux Citj', but did not appear to be common. We also found it in College Creek at 
Ames and in Storm and Spirit lakes, 11 specimens from Ames being in the collection. An 
examination of specimens from these different localities shows considerable variation in the 
dorsal-fin formula. In 25 specimens from South Bend the dorsal-fin formula was as follows : 
ix-10 in 9, X-11 in 5, x-10 iu 4, ix-11 in 4, ix-9 in 2, and xi-10 in 1. Two of the siiecimeus 
from Fremont give x-11, and one each A'iii-10, ix-10, and x-10. The one specimen we have 
from Lemars has the dorsal viii-lO. The four siiecimens from Storm Lake give vii-10, viii-9, 
viii-11, and IX-10, respectively. Of the 11 specimens from Ames four give ix-11, four ix-10, 
and one each x-10, x-11, and a ii- 9. Of these 46 specimens, 15 count ix-10, while the variation 
in 22 others is from ix or x-10 or 11. 
56. Perea flavescens (Mitchill). Piing Perch. Abundant iu Storm, East Okoboji, and Spirit lakes. 
At the mouth of a small inlet near the northeast corner of Spirit Lake, about the last of June, 
1890, young yellow perch were so abund.ant that they could he scoojied up by the handful. 
57. Stizostedion vitreunr (Mitchill). Wall-eijed Pike. This is by far the most important and valuablb 
fish of Spirit and West Okoboji lakes, where it is known as “pike.” 
58. Stizostedion canadense (C. II. Smith). Sand Pike; Gray Pike. Found in Platte River at 
Fremont, Floyd at Lemars and Sioux Citj^, and in Sjiirit Lake. 
59. Roccus chrysops (Raflni'sque). TVhifeBass. One specimen from Storm Lake. Local fishermen 
report that it is taken but rarely. 
60. Aplodinotus giunniens (Rafinesque). Freshwater Dram. Common in the Elkhorn River near 
Fremont. 
