232 
BULLETIN OF THE UNITED STATES PISH COMMISSION. 
5. Lepisosteus osseus (Linnaeus). Common gar-pike; Long-nosed gar; Bill-Jisli. Cedar Rapids, com- 
mon. A few specimens from this locality are contained in the Coe College Museum. The 
species also occurs in the river. 
6. Amia calva Linnaeus. Dogfish; Bow-fin; Mvdfish. Very abundant in the Slough and occasionally 
taken from the Cedar River. 
7. Ictalurus punctatus (Rafinesque). Channel cal; White cat; Silver cat. Cedar Rapids, common ; 
Palo, Cedar River, several small specimens taken in the seine. During the months of 
.Tune and July many specimens of this species are taken from the Cedar River with hook 
and line. The best bait seems to be fibrin from blood. The favorite fishing-places are just 
below the dam or below Sinclair’s packing-house, the latter apparently being the best. The 
water below the packing- house is far less clear and pure than below the dam. 
8. Ameiurus natalis (Le Sueur). Yellow cat. Indian Creek, scarce. Anal rays, 25; base of anal, 
3-g in the length of the body and longer than the length of the head. 
9. Ameiurus nebulosus (Le Sueur). Common bullhead; Horned pout. Dry Creek, Palo, common; 
Dumont, not common ; anal rays, 20 to 23 ; Indian Creek and Austin, Turtle River, rare. 
10. Ameiurus melas (Rafinesque). Bullhead. Cedar Rapids, abundant in the Slough; Indian Creek, 
Dumont, and Dry Creek, common; Waverly (Shellrock and Clear rivers), Prairie Creek, 
and Mount Vernon, not common. 
11. Leptops olivaris (Rafinesque). Mud cat] Flat-head cat. Several large specimens of this species 
were reported taken from the Cedar River w»ith hook and line in July, 1890, the largest 
weighing about 20 pounds. I saw only a few of these, but all that I examined were of this 
species. It is not unlikely that some of the larger specimens recorded may have belonged 
to A. nigricans. According to the anglers, cat fishing was better in July, 1890, than it had 
been at auy time during the past ten years. 
12. Noturus flavus (Rafinesque). Stone cat. Cedar Rapids, rare. 
13. Noturus gyrinus (Mitchill). Stone cat. West Liberty, rare; anal, 15 rays ; caudal fin continuous 
with adipose; dorsal spine not serrated ; head, 3^ in length of body; top of head flattish. 
Waverly (Cedar River), rare; anal, 15; head, 3f ; depth, 4; pectoral spine entire, 2^ in head. 
Dumont, Dry Creek, and Indian Creek, rare. 
14. Carpiodes velifer (Rafinesque). Quill-back; Carp sucker. Cedar Rapids, very abundant in still 
bays along the sides of the river. Most of the specimens taken are small. Different 
individuals show considerable variation, but I have hot been able to detect any constant 
characters by which to separate them. Prairie Creek, abundant; Dumont, Austin, Indian 
Creek, and West Liberty, common; Waverly (Shellrock and Cedar rivers), not common. 
15. Catostomus teres (Mitchill). Common sucker. Dry Creek at Palo, Prairie Creek, and Cedar 
Rapids, abundant; Waverly (Shellrock River), Dumont, Austin, Indian Creek, and West 
Liberty, common ; Cedar River at Palo, rare. 
16. Catostomus nigricans (Le Sueur). Hog sucker; Stone-roller; Hog mullet. Dry Creek, at Palo, 
abundant; Dumont, common; Austin, and Cedar River at Waverly, not common; Cedar 
Rapids, Prairie Creek, Indian Creek, and Mount Vernon, rare. 
17. Erimyzon sucetta (Lacepede). Chub sucker; Sweet sucker. West Liberty, two specimens were 
taken from a bayou near the river. Scales, 38 ; dorsal rays, 12 ; anal, 7 ; depth, 3| ; head, 4 ; 
longest specimen, 7-)- inches. This species seems rare in Iowa, and 1 have taken no speci- 
mens from other localities than the above. 
18. Moxostoma anisurum (Rafinesque). White-nosed sucker. Austin, rare; dorsal, 15 rays; body 
deeper than in If. duquesnei; depth, 3)- ; dorsal region arched more than in M. duquesnei; 
color, more silvery, and lower lip thinner and with sharper angle. Waverly, Shellrock, 
rare ; depth, 3-J ; dorsal rays, 15. ' 
19. Moxostoma duquesnei (Le Sueur). Common redhorse; “Mullet.” West Liberty, common ; lower 
fins red; dorsal rays, 14, Cedar Rapids, Prairie Creek, and Palo (Dry Creek), common. 
Waverly (Shellrock River), common; dorsal rays, 12 to 13; depth, 4J in the length of the 
body. Dumont, common; scales, 44; dorsal rays, 13; upper lip with a dark margin; color 
darker and less silvery than in specimens taken elsewhere. Austin, not common; dorsal 
rays, 12 to 14; color less silvery than usual; depth scarcely more than length of head. 
191. Minytrema melanops Rafinesque. Striped sucker. Cedar River, scarce. 
