8 
widely distributed but not common. Supplemental rec- 
ords are as follows: pools 4, 6, 8-10 (UMRCC 1953), 
5 (UMRCC 1964), 7, 11, 25 (Nord 1967), 15, 16, 21, 
and 24 (Barnickol & Starrett 199106 
Hypentelium nigricans (Lesueur). — The northern 
hog sucker is rare and probably present only as a strag- 
gler below pool 12. Supplemental records are in ex- 
istence for pools 4, 6, 9 (UMRCC 1953), 10, yay Ne 
and 19 (Nord 1967). 
Ictiobus bubalus (Rafinesque) -—The smallmouth 
buffalo is widely distributed and moderately common 
below pool 12 but rare above. Supplemental records 
are as follows: pools 2 (UMRCGG 196550 5s 10a I 
(UMRCC 1953), 17, 22, 25, and B-26 (Barnickol & 
Starrettslgo1)e 
Ictiobus cyprinellus (Valenciennes) —The bigmouth 
buffalo is widely distributed and moderately common 
throughout the river. Supplemental records are available 
for pools 2 (UMRCC 1965), 3-5 (UMRCC 1964), 
Gl CUMRCGBI953 eal 2 sloje2 rece, 25, and B-26 
(Barnickol & Starrett 19917 
Ictiobus niger (Rafinesque) —The black buffalo is 
widely distributed and fairly common from pool 14 to 
the mouth of the Ohio River. Supplemental records 
are as follows: pools 4-6, 8-10 (UMRCC 1953) an7 
(Nord 1967), 11-17, 21, 22, 24, 25, and B-26 (Barnickol 
& Starrett 1951). 
Minytrema melanops (Rafinesque).—The spotted 
sucker is occasionally taken between Lake Pepin and 
pool 17. Supplemental records for pools 5 (UMRCC 
1964), 9 (UMRCC 1953), 11, and 17 (Barnickol & 
Starrett 1951) are available; records of presumably 
greater age for pools 18 and 20 (Nord 1967) are not 
plotted. 
Moxostoma anisurum (Rafinesque).—The silver red- 
horse is rather rare but is taken most frequently above 
pool 12. Supplemental records are available for pools 
4 (UMRCC 1967), 6-10 (UMRCC 1953), 12, 20 (Nord 
1967), and 16 (Barnickol & Starrett 1951). 
Moxostoma erythrurum (Rafinesque) —The golden 
redhorse is rather rare and is taken most frequently 
above pool 14. Supplemental records are as follows: 
pools 5, 8 (UMRCC 1967), 6, 9, 11 (UMRCC 1953), 
7 (Nord 1967), and 10 (Becker 1966). 
Moxostoma macrolepidotum (Lesueur).—The most 
generally distributed Moxostoma in the river, the short- 
head redhorse is usually present in small numbers. Sup- 
plemental records exist for pools 2 (UMRCC 1965), 5 
(UMRCC 1964), 13, 15, 17, 18, 20, 21, and 25 (Bar- 
nickol & Starrett 1951). 
Moxostoma valenciennesi Jordan.—The greater red- 
horse is recorded from pools 5 (UMRCC 1964) and 8 
(UMRCC 1953). The latter record has recently been 
confirmed by Dr. R. E. Jenkins of Roanoke College, who 
examined the specimen on which it was based. 
*Ictalurus catus (Linnaeus).—Adult white catfish, 
taken near New Boston and near Wolf Lake, Illinois, 
by commercial fishermen during the summer of 1970; 
are the first records for the Mississippi River. The speci- 
mens are regarded as escapees from stockings at sites 
near the Mississippi River. 
Ictalurus furcatus (Lesueur).—The blue catfish is 
taken occasionally below pool 26, but it has become rare 
above the mouth of the Missouri River. The northern- 
most recent record is for pool 13 (UMRCC 1958). 
Supplemental records are as follows: pools 13 (UMRCC 
1958), 19 (Nord 1967), 20-22, 24, 25, B-26 (Barnickol 
& Starrett 1951), and 26 (Rock 1963). 
Ictalurus melas (Rafinesque).—The black bullhead 
is widely distributed but not common. Supplemental 
records are available for pools 3-5 (UMRCC 1964), 
6-10 (UMRCC 1953), 11, 14-18, 20, 21, 26, B-26 (Bar- 
nickol & Starrett 1951), 12, 24 (Nord 1967), 22, and 
25 (UMRCC 1951). 
Ictalurus natalis (Lesueur) —The yellow bullhead is 
widely distributed but not common. Supplemental rec- 
ords are as follows: pools 2 (UMRCC 1965), 35 
(UMRCC 1964), 6-11 (UMRCC 1953), 13, 24 (Nord 
1967), 17, 18, 21, 25, 26, B-26 (Barnickol & Starrett 
1951), and 20 (UMRCC 1951). 
Ictalurus nebulosus (Lesueur) .—The brown bullheac 
is recorded from several sites above pool 10. Supple 
mental records for pools 2 (UMRCC 1965), ee 
(UMRCC 1964), 4 (UMRCC 1967), 6, 8, 9 (UMRCC 
1953), and 26 (Barnickol & Starrett 1951) are available 
Records of unknown age for pools 11 and 13 (Nore 
1967) are questionable and not plotted. The publishec 
record for pool 26 is probably based on a straggler fron 
the Illinois River, which has populations of the brows 
bullhead. 
Ictalurus punctatus (Rafinesque) —The channel cat 
fish is common throughout the river. Supplemental rec 
ords are as follows: pools 2 (UMRCC 1965), 3 
(UMRCC 1964), 9 (UMRCC 1960), 19, and 25 (Bar 
nickol & Starrett 1951). 
Noturus flavus Rafinesque.—The stonecat is widel 
but sporadically distributed. Supplemental records ar 
available for pools 4, 6, 9-11 (UMRCC 1953), 13, an 
16 (Nord 1967). Specimens from sites below the mout 
of the Missouri River represent the small-eyed phenc 
type discussed by Taylor (1969:123). 
Noturus gyrinus (Mitchill) —The tadpole madtor 
is widely distributed but usually not common. Supple 
mental records for pools 6-8 (UMRCC 1953), 21, an 
B-26 (Starrett & Barnickol unpublished) are available 
Noturus nocturnus Jordan & Gilbert—The freckle 
madtom is represented in recent minnow-seine collectior 
from pools 20 and 21, and it probably is restricted | 
localized rubble riffles. 
Pylodictis olivaris (Rafinesque).—The flathead ca 
fish is fairly common throughout the river. Supplement: 
records are as follows: pools 2 (UMRCC 1965), D- 
(UMRCC 1964), 6 (UMRCC 1953), 7 (UMRC 
1958), 8-10 (UMRCC 1960), 11, 12, 15-22, 25, B-2 
(Barnickol & Starrett 1951), and 13 (Rock 1963). 
*Aphredoderus sayanus (Gilliams).— The pira 
perch is recorded from pools 5-9 (UMRCC 1953), b 
this species is probably rare in the river proper. 
Percopsis omiscomaycus (Walbaum) . — The trou 
perch is generally distributed above pool 10 and rath 
common in Lake Pepin. Supplemental records exist f 
pools 5, 6, and 8-10 (UMRCC 1953). Pie souther 
most record is for river mile 150 (Starrett & Barnick 
unpublished) . 
