236 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
70. Micropterus dolomieu Lac6peae. Small-mouthed Mach bass. Cedar Rapids, Dumont, Indian 
Creek, and Waverly (Shellrock River), common; Palo, rare. This species usually lives in 
clear, running water. The next species is more abundant in sloughs or in water with 
sluggish current. 
71. Micropterus salmoides (Lac6p5de). Large-moutlied blade bass. Palo, Cedar Rapids, Waverly, 
(Shellrock and Cedar rivers), and West Liberty (slough), common; Indian Creek, rare. 
72. Etheostoma pellucidum clarum (Jordan and Meek). Cedar River, rare. The specimens agree 
very well with the description of individuals taken at Ottumwa by Jordan and Meek in 1884. 
73. Etheostoma nigrum Rafinesque. Johnny darter. Indian Creek, West Liberty, Waverly (Shell- 
rock and Cedar rivers), Palo, Dumont, Prairie Creek, and Cedar Rapids, abundant. This 
is by far the most abundant darter in Iowa. 
74. Etheostoma caprodes (Rafinesque). Log perch. Waverly (Shellrock) and Cedar Rapids, rare. 
Dorsal, 14 or 15 ; lateral line with 85 scales. 
75. Etheostoma aspro (Cope and Jordan). Blade-sided darter. Indian Creek, not common; some 
specimens have a very large head and slender body. West Liberty, Waverly (Shellrock and 
Cedar rivers), and Dumont, rare. Prairie Creek and Cedar Rapids, common. 
76. Etheostoma phoxocephalum Nelson. Palo and Cedar Rapids, rare. 
77. Etheostoma evides Jordan and Copeland. Cedar Rapids, rare. 
78. Etheostoma zonale (Cope). Indian Creek, common. Breast, cheeks, opercles, and nape scaly; 
dorsal, XI-11 ; scales, 43. Cedar Rapids, Waverly (Cedar and Shellrockrivers), and Dumont, 
rare. 
79. Etheostoma flabellare Rafinesque. Indian Creek, Palo, and Cedar Rapids, not common. The 
lateral stripes are very distinct on all Iowa specimens. 
80. Etheostoma coeruleum Storer. Indian Creek, common. Cedar Rapids, not common. Scales, 
45; dorsal, IX-X, 12. Waverly (Cedar and Shellrock rivers), not common. A few speci- 
mens of spectabile form. 
81. Etheostoma jessiae Jordan and Brayton. Indian Creek and Cedar Rapids, rare. Scales, 49; 
cheeks scaly; dorsal, X-12; scales in the lateral line, 49. 
82. Etheostoma iowae Jordan and Meek. Indian Creek, common. Color of male, light yellowish 
or olivaceous, very light below, dark above ; upper two-thirds of body specked ; sided with 
twelve dark vertical bars. The first bar is above and behind the opercle, the last one (very 
faint) at base of caudal fin. Between these dark bars are golden bars, which extend rather 
irregularly on sides of belly. Cheeks mottled with dark, a dark band extending downward 
and forward from the eye, and also upward and backward from the eye. Spinous dorsal 
dark at base and margin; the rest of the fin is red; soft dorsal with about five rows of 
brownish spots ; caudal and pectoral fins also barred, golden at base of the latter ; ventral® 
and anal white. Color of females similar to males, but the dark bars are less conspicuous, 
the markings more reticulated ; no golden bars; all fins except ventrals barred with brown 
spots. Dorsal fin, cheeks, and opercles scaly ; breast naked ; scales in the lateral line, 55 to 
58; head, 4; D., 5J to 5f. Shellrock River, Waverly, and Dumont, rare. This species is 
common in Iowa, but so far as known its distribution is limited to the State whose name it 
bears. 
83. Etheostoma microperca Jordan and Gilbert. Least darter. West Liberty, rare. D., VII-9. 
84. Stizostedion vitreum (Mitchill). Wall-eyed pike ; Jack salmon. This species is known in Iowa 
by the name of pike. 
85. Stizostedion canadense (C. H. Smith). Sauger; Sand pike. Both this and the preceding species 
are occasionally taken in the Cedar River, but I have only observed the former. They are 
less abundant now than formerly. 
86. Perea flavescens (Mitchill). Yellow perch. Dumont, common in the lake; Cedar Rapids, rare. 
87. Aplodinotus grunniens Rafinesque. Fresh-water drum. This species seems to be quite common 
near Cedar Rapids in the spring. I have never caught any with the seine, but have seen 
many specimens that were taken with hook and line below the dam at Cedar Rapids. 
